EXPANDABLE MINE STOPPING PANEL

BACKGROUND OF THE INVENTION
Field of the Invention

The present invention generally relates to a ventilation stopping panels and more particularly to expandable ventilation panel used in the construction of a mine stopping.

Discussion of the Related Art

Mine stopping panels are used to control the flow of air through mine passages. These panels generally comprise first and second sheet metal panel members having a telescoping sliding fit one inside the other. The panel members are extended into a sealing engagement with the floor and roof of a mine passage.

The panels come in a variety of configurations and designs. Consistently however each combination of sheet metal components possess edges that upon expanding the panel create a hazardous cutting or slicing effect. Moreover, the unreinforced edges are susceptible to damage during transient obviating the expansive capability of each panel. A need therefore exists to provide expansive mine stopping panels that provide safety protection from injuries and to provide additional strength and rigidity. Especially in mines with large airflows as the panels can break, bend and/or fail.

Additional advantages and novel features of this invention shall be set forth in part in the description that follows, and in part will become apparent to those skilled in the art upon examination of the following specification or may be learned by the practice of the invention. The advantages of the invention may be realized and attained by means of the instrumentalities, combinations, compositions, and methods particularly pointed out in the appended claims

SUMMARY OF THE INVENTION

Accordingly, the invention is directed to an expandable mine stopping panel that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.

An advantage of the invention is to provide a system that has one or more safety features.

Another advantage of the invention is to provide ventilation stopping panels with additional or enhanced structural integrity.

Yet another advantage of the invention is to provide ventilation stopping panels with additional or enhanced structural integrity.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

This Summary section is neither intended to be, nor should be, construed as being representative of the full extent and scope of the present disclosure. Additional benefits, features and embodiments of the present disclosure are set forth in the attached figures and in the description hereinbelow, and as described by the claims. Accordingly, it should be understood that this Summary section may not contain all of the aspects and embodiments claimed herein.

Additionally, the disclosure herein is not meant to be limiting or restrictive in any manner. Moreover, the present disclosure is intended to provide an understanding to those of ordinary skill in the art of one or more representative embodiments supporting the claims. Thus, it is important that the claims be regarded as having a scope including constructions of various features of the present disclosure insofar as they do not depart from the scope of the methods and apparatuses consistent with the present disclosure (including the originally filed claims). Moreover, the present disclosure is intended to encompass and include obvious improvements and modifications of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.

In the drawings:

FIG. 1 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 2 illustrates a top view of the ventilation stopping panel system according to FIG. 1.

FIG. 3 illustrates a bottom view of the ventilation stopping panel system according to FIG. 1.

FIG. 4 illustrates a perspective view of the ventilation stopping panel system according to FIG. 1 in a second orientation.

FIG. 5 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

FIG. 6 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

FIG. 7 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 8 illustrates a top view of the ventilation stopping panel system according to FIG. 7.

FIG. 9 illustrates a bottom view of the ventilation stopping panel system according to FIG. 7.

FIG. 10 illustrates a perspective view of the ventilation stopping panel system according to FIG. 7 in a second orientation.

FIG. 11 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

FIG. 12 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

FIG. 13 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 14 illustrates a top view of the ventilation stopping panel system according to FIG. 13.

FIG. 15 illustrates a bottom view of the ventilation stopping panel system according to FIG. 13.

FIG. 16 illustrates a perspective view of the ventilation stopping panel system according to FIG. 13 in a second orientation.

FIG. 17 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

FIG. 18 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

FIG. 19 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 20 illustrates a top view of the ventilation stopping panel system according to FIG. 19.

FIG. 21 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 22 illustrates a top view of the ventilation stopping panel system according to FIG. 19.

FIG. 22B illustrates a top view of the ventilation stopping panel system according to an embodiment of the invention.

FIG. 23 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 24 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

FIG. 25 illustrates a top view of the ventilation stopping panel system according to FIG. 1.

FIG. 26 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 27 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 28 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 29 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 30 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 31 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 32 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 33 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 34 illustrates safety mechanisms according to an embodiment of the invention.

FIG. 35 illustrates edge configurations according to an embodiment of the invention.

FIG. 36A illustrates a perspective view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 36B illustrates a side view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 36C illustrates a back view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 37A illustrates an installation view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 37B illustrates an installation view of the ventilation stopping panel system according to FIG. 37A.

FIG. 38 illustrates an accessory for use with the ventilation stopping panel system according to another embodiment of an invention.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

Appearances of the phrases an “embodiment,” an “example,” or similar language in this specification may, but do not necessarily, refer to the same embodiment, to different embodiments, or to one or more of the figures. The features, functions, and the like described herein are considered to be able to be combined in whole or in part one with another as the claims and/or art may direct, either directly or indirectly, implicitly or explicitly.

As used herein, “comprising,” “including,” “containing,” “is,” “are,” “characterized by,” and grammatical equivalents thereof are inclusive or open-ended terms that do not exclude additional unrecited elements or method steps unless explicitly stated otherwise.

Features and objects of the present invention and the manner of attaining them will become more apparent, and the invention itself will be best understood, by reference to the following description of one or more embodiments taken in conjunction with the accompanying drawings and figures imbedded in the text below and attached following this description.

In order to more fully appreciate the present disclosure and to provide additional related features, the following references are hereby incorporated therein by reference in their entirety and their specific referenced teachings as explained herein and as follows:

(1) U.S. Pat. No. 5,466,187 issued to Kennedy, et al., which discloses a mine ventilation structure for installation at the intersection of first and second passageways in a mine. The ventilation structure defines a first passage communicating with the first passageway and a second passage communicating with the second passageway. The ventilation structure includes a pair of generally parallel, spaced-apart side walls defining the side walls of the first passage, and a plurality of elongate deck panels extending between the side walls and forming the roof of one of the first and second passages and the floor of the other of the first and second passages. Each deck panel is a sheet metal panel generally of inverted channel shape in transverse cross section, having an upper web and side flanges extending down from the upper web at opposite sides of the web. Tie bars hold the deck panels together in fixed side-by-side relation with the side flanges of the panels closely adjacent one another so that the webs of the panels form a substantially continuous surface.

(2) U.S. Pat. No. 6,220,785 issued to Kennedy, et al., which discloses a permanent mine stopping comprising two spaced-apart metal walls with a filling in the space therebetween keyed or adhesively bonded to the walls and having sufficient strength in tension to constitute the walls and the filling as a permanently integrated composite structure in which the walls act as flanges in conjunction with the filling as a web. Also, a method of constructing the stopping using extensible panels to construct the walls, and an extensible panel for use in constructing a stopping with the keying.

(3) U.S. Pat. No. 6,264,549 issued to Kennedy, et al., which discloses a tunnel-forming overcast structure for incorporation in the installation of an overcast construction at the intersection of two intersecting passages in a mine, each passage constituting an airway for flow of air for mine ventilation having an upstream and a downstream mouth at the intersection. The structure includes a pair of generally parallel side walls each having a top and a deck extending from the top of one of the side walls to the top of the other side wall and connected to the side walls. Each side wall comprises a plurality of elongate generally vertically extensible panels extending generally vertically in side-by-side relation. Each panel includes an upper member and a lower member, one of the members having a sliding fit in the other. The lower members are in a relatively non-extensible position with respect to the upper members in the structure and are ultimately extensible for completing walling off of the upstream and downstream mouths of one of the airways. A method of installing the structure is also disclosed.

(4) U.S. Pat. No. 6,379,084 issued to Kennedy, et al., which discloses a stopping system for use in mines. The stopping system includes a king post truss for reinforcing the stopping panels against excessive deflection due to a pressure differential across the stopping panels. The truss has a variable length to accommodate convergence and divergence of the mine walls on which the truss is mounted.

(5) U.S. Pat. No. 6,419,324 issued to Kennedy, et al., which discloses a method of sealing off a mine passageway. The method involves installing a plurality of vertical panels side by side across the passageway to form a stopping. The stopping has gaps between adjacent panels and gaps between the panels and adjacent mine surfaces defining the mine passageway. The method further comprises holding an injector in or closely adjacent the gaps, and injecting a fluent sealing material under pressure into the gaps to form a seal.

(6) U.S. Pat. No. 6,688,813 issued to Kennedy, et al., which discloses a portable wall section for incorporation in a mine stopping or for use as a mine permanent stopping or seal form, comprising vertically extensible panels secured in side-by-side relation, a stopping installed in a mine, a stopping system utilizing one or more of said sections, and methods of installing the stopping and form.

(7) U.S. Pat. No. 6,715,961 issued to Kennedy, et al., which discloses a method of supporting opposite first and second walls of a mine passageway includes providing an elongate beam having opposite first and second ends and a longitudinal axis. The beam is configured to have substantial columnar strength for bearing a substantial longitudinal load applied to the beam generally longitudinally of the beam and substantial bending strength for bearing a substantial transverse load applied to the beam generally transversely of the beam. The method further includes selecting first and second locations on the first and second walls, respectively, providing suitable areas for supporting the first and second walls, and positioning the first end of the beam at the first location and the second end of the beam at the second location so that the beam extends between the first and second walls of the mine passageway.

(8) U.S. Pat. No. 6,846,132 issued to Kennedy, et al., which discloses a mine stopping installed in a mine passageway includes a plurality of elongate panels extending generally vertically in side-by-side relation from a floor to a roof of the passageway to at least partially close the passageway. A generally horizontal elongate brace extends generally between the walls of the passageway adjacent to the panels. A generally vertical column extends from the floor to the roof and is adapted for reinforcing the brace. Braces and anchor beams for stoppings are also disclosed.

(9) U.S. Pat. No. 7,232,368 issued to Kennedy, et al., which discloses a mine air crossing includes opposite side walls and a deck extending from side wall to side wall. Each side wall includes a plurality of sections assembled side-by-side and interconnected by quick-connections. Similarly, each deck may include deck sections assembled side-by-side and interconnected by quick-connections.

(10) U.S. Pat. No. 9,447,684 issued to Kennedy, et al., which discloses a mine stopping panel is disclosed. The panel includes first and second channel-shaped panel members having a telescoping sliding fit one inside the other. An end cap is fitted in the first panel member. One or more louver connections between the first panel member and the end cap hold the end cap against movement relative to the first panel member when an extending force is applied to the end cap tending to telescopically extend the first panel member relative to the second panel member.

(11) U.S. Pat. No. 10,151,203 issued to Kennedy, et al., which discloses a mine stopping panel is disclosed. The panel includes first and second channel-shaped panel members having a telescoping sliding fit one inside the other. An elongate end cap is fitted in the first panel member. One or more louver connections between the first panel member and the end cap hold the end cap against movement relative to the first panel member when an extending force is applied to the end cap tending to telescopically extend the first panel member relative to the second panel member.

(12) U.S. Pat. No. 10,378,355 issued to Kennedy, et al., which discloses a mine stopping panel and method of making it are disclosed. In one embodiment, the panel includes first and second channel-shaped panel members having a telescoping sliding fit one inside the other. An elongate end cap fitted in the first panel member. One or more connections between the first panel member and the end cap hold the end cap against movement relative to the first panel member when an extending force is applied to the end cap tending to telescopically extend the first panel member relative to the second panel member. At least one device on the end cap is configured for engagement with the first panel member to resist telescopic movement of the first end cap relative to the first panel member when a contracting force is applied to the first end cap. Other improved mechanisms for resisting contracting forces are disclosed.

In one embodiment, the mine stopping ventilation panels included enhanced strength and safety features. Each panel include one or more panel enhancement mechanisms configured to increase the strength of the panel and safety features along the turned in edges. The ventilation panels are configured as a system of a first panel and a second panel to fit one inside the other along an axis extending lengthwise. The first panel and second panel are configured to telescopically so as to adjust for the height of a mine. In one embodiment, the mine ventilation panels include safety features on the each, e.g., rolled edges, hemmed edges, coated edges, and other edges, configured to enhance safety when in use.

In one embodiment, the mine stopping ventilation panels are configured into a structure with one or more mine stopping ventilation panels including one or more foam caps, rib angles and twist clamps. The foam caps are configured to fit one top send and/or bottom end of each mine stopping ventilation panel. The mine stopping ventilation panels also include a top cap and bottom cap. The top cap and bottom cap are coupled to the top end and the bottom end, respectively. The top cap and bottom cap can be coupled with any attachment mechanism, e.g., nuts and bolts, welding, rivets, adhesive, and combinations of the same. The one or more rib angle is set horizontally across the space where the stopping is desired. The panels are attached to the rib angle with one or more twist clamps and the edge portion of the panel. Optionally, the mine stopping ventilation panels may include one or more slots or holes configured to receive the twist clamp through the panel.

Optionally and/or alternatively, the panels can include on or more slots, one or more louvers and head pieces for use in constructing the one or more structures with the panels as known in art and described with reference to U.S. Pat. Nos. 9,447,684 and 10,378,355 and assembled as described therein both patents are incorporated herein for those teachings. For example, the apparatus includes a mine stopping panel that includes a first and second channel-shaped panel members having a telescoping sliding fit one inside the other. Each panel includes a safety feature along two of the edges to prevent cutting and strengthen the edge. The safety feature may any safety feature described herein. In addition, each panel includes one or more enhancement mechanisms to strengthen the panel as described herein. An end cap is fitted in the first panel member as described in U.S. Pat. Nos. 9,447,684 and 10,378,355, which is hereby incorporated by reference for those teachings. One or more louver connections between the first panel member and the end cap hold the end cap against movement relative to the first panel member when an extending force is applied to the end cap tending to telescopically extend the first panel member relative to the second panel member as described in U.S. Pat. Nos. 9,447,684 and 10,378,355, which is hereby incorporated by reference for those teachings.

In one embodiment, the stopping panels of the present invention employ a configuration or orientation of the material to enhance safety, a configuration or orientation to enhance strength and rigidity. Ultimately the panels are used in a system to build an air resistant wall inside of a mine that are durable and reusable.

In one embodiment, the panels include a telescoping feature configured to allow the panels to conform to the different and irregular shapes that are present in most mine entries.

In one embodiment, each of the panels include a safety mechanism, e.g., a hemmed or rolled edge at the edge of the panels that serves multiple purposes. For example, the rolled edge can act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edge also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension.

In one embodiment, the safety mechanism includes a hemmed edge may be an open edge or closed edge. A closed hem is completely flush at the bend without an air pocket such that first surface of the end is in contact with the second surface of the bend. The open hems have an air pocket in the bend of a predetermined volume at the bend such that a first surface of the bend is not in contact with a second surface of the bend. There are also other types of safety mechanism as described herein which include a teardrop hem, radius flat hem, modified flat hem, rope hem modified roped hem, the like and any combination of the same. In one embodiment, the safety mechanism includes a rolled edge that may be an open or closed edge as described herein.

In one embodiment, the safety mechanism includes an additional coating such as a plastic coating, thermoplastic coating, or other coating to act that serves multiple purposes. The coating is configured to cover the edge portion of the panel and acts as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The coating also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension.

In one embodiment, the safety mechanism may be any combination of coating, a rolled and pressed edge. For example, the rolled or pressed edge may have a coating for further protection.

In one embodiment, the system may include a multitude of telescoping panels, angle iron bridging or the like, wire clips to tie them together, smaller void filling sheet metal panels, and clips to fasten panels together that overlap. Cumulatively these parts assembled together create a completely airtight wall that separates pressure differentials in mine air. The attached figures illustrate various contemplated panel configurations using the rolled edge technology. In other embodiments of the present invention a 45-degree inner corner could be used akin to a “Z” shaped panel.

Using roll-forming technology according to the present invention greatly reduces labor costs, increases production potential to meet demand or rush orders, and increases uniformity. The rolled edge serves several purposes as stated above including increased strength, rigidity, reliability and safety.

Reference will now be made in detail to an embodiment of the present invention, example of which is illustrated in the accompanying drawings.

FIG. 1 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention. FIG. 2 illustrates a top view of the ventilation stopping panel system according to FIG. 1. FIG. 3 illustrates a bottom view of the ventilation stopping panel system according to FIG. 1. FIG. 4 illustrates a perspective view of the ventilation stopping panel system according to FIG. 1 in a second orientation.

Referring to FIGS. 1-4, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 100. The ventilation stopping panel system 100 includes a first panel 102 and second panel 104 inner panel. The first panel 102 and second panel 104 are movable relative to each other as shown by arrow 105. This movement or expansion is a telescopic and allows for the height of system to be adjusted. The first panel 102 includes a safety mechanism 106 and the second panel 104 includes a safety mechanism 108. The safety mechanisms 106 and 108 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanism 106 and 108 includes a rolled hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edge 106 and 108 also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension.

Also, there is an enhancement mechanism that includes a bend 110 or protrusion as shown. The bend 110 includes one bend, however, can include any number of bends shown herein. The bend 110 is configured to add structural integrity and/or strength to the system when in an expanded configuration. The bend has a sloped region 112 in a range or at an angle from about 30 degrees to about 80 degrees. The ventilation stopping panel system 100 may experience large air flow and high force against one or both sides of the system 100. The enhancement mechanism 110 substantially prevents or minimizes any change or destruction of the ventilation stopping panel system. Without the enhancement system 100 is configured to minimize any damage, dislodgement and other issues caused by the wind and overall significantly enhances the strength as compared to a system without the enhancement system 100. The bend 110 is configured to increase the strength of the panel from a force in an orientation orthogonal or from about 20 degrees to about 160 degrees relative the surface of the panel.

Optionally and/or alternatively, the first panel 102 and second panel 104 include one or more structural enhancement mechanisms. The enhance mechanism, e.g., ribs, stringer, bars, that is affixed to the one or more of the panels can also provided enhanced strength. The panel can also be made thicker in on region. The thickness of the panel can be from about 0.01 mm to about 5 mm or greater.

FIG. 5 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

Referring to FIG. 5, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 500. The ventilation stopping panel system 500 includes a first panel 502 and second panel 504 inner panel. The first panel 502 and second panel 504 are movable relative to each other as described herein. The first panel 502 includes a safety mechanism 508 and 514 the second panel 504 includes a safety mechanism 506 and 512. The safety mechanisms 506, 508, 512, and 514 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 508 and 514 each include a rolled hem facing inward. The safety mechanisms 506 and 512 each include a rolled hem facing outward. The safety mechanisms 506, 508, 512, and 514 to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanisms 506, 508, 512, and 514 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. The bend can be any bend described herein. There is a structural enhancement mechanism 510 is also described herein.

FIG. 6 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

Referring to FIG. 6, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 600. The ventilation stopping panel system 600 includes a first panel 602 and a second panel 604. The first panel 602 and second panel 604 are movable relative to each other as described herein. The first panel 602 includes a safety mechanism 606 and 614 the second panel 604 includes a safety mechanism 608 and 612. The safety mechanisms 606, 608, 612, and 614 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 608 and 612 each include a rolled hem facing outward. The safety mechanisms 606 and 614 each include a rolled hem facing outward. The safety mechanisms 606, 608, 612, and 614 are configured to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanisms 606, 608, 612, and 614 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. There is a structural enhancement mechanism 610 is described herein.

FIG. 7 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention. FIG. 8 illustrates a top view of the ventilation stopping panel system according to FIG. 7. FIG. 9 illustrates a bottom view of the ventilation stopping panel system according to FIG. 7. FIG. 10 illustrates a perspective view of the ventilation stopping panel system according to FIG. 7 in a second orientation.

Referring to FIGS. 7-10, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 700. The ventilation stopping panel system 700 includes a first panel 702 and second panel 704 panel. The first panel 702 and second panel 704 are movable relative to each other as shown by arrow 705 and as described herein. The first panel 702 includes a safety mechanism 712 and 714 the second panel 704 includes a safety mechanism 706 and 708. The safety mechanisms 706, 708, 712, and 714 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 706, 708, 712, and 714 each include a flat hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The safety mechanisms 706, 708, 712, and 714 also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two flat edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 710 as described herein.

FIG. 11 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

Referring to FIG. 11, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 1100. The ventilation stopping panel system 1100 includes a first panel 1102 and second panel 1104 inner panel. The first panel 1102 and second panel 1104 are movable relative to each other as described herein. The first panel 1102 includes a safety mechanism 1106 and 1108 the second panel 1104 includes a safety mechanism 1110 and 1112. The safety mechanisms 1106, 1108, 1110, and 1112 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 1106, 1108, 1110, and 1112 each include a flat hem and terminate at the same length on each panel. The safety mechanisms 1106, 1108, 1110, and 1112 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanisms 1106, 1108, 1110, and 1112 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 1106, 1108, 1110, and 1112 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension.

There is a structural enhancement mechanism 1114 is described herein.

FIG. 12 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

Referring to FIG. 12, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 1200. The ventilation stopping panel system 1200 includes a first panel 1202 and second panel 1204 inner panel. The first panel 1202 and second panel 1204 are movable relative to each other as described herein. The first panel 1202 includes a safety mechanism 1206 and 1208 the second panel 1204 includes a safety mechanism 1210 and 1212. The safety mechanisms 1206, 1208, 1210, and 1212 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 1206, 1208, 1210, and 1212 each include a flat hem and terminate at the different lengths. The safety mechanisms 1210 and 1212 of the second panel 1204 terminate at length shorter than the safety mechanisms 1206 and 1208 of the first panel 1202. The safety mechanisms 1206, 1208, 1210, and 1212 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanisms 1206, 1208, 1210, and 1212 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 1206, 1208, 1210, and 1212 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. There is a structural enhancement mechanism 1214 is described herein.

FIG. 13 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention. FIG. 14 illustrates a top view of the ventilation stopping panel system according to FIG. 13. FIG. 15 illustrates a bottom view of the ventilation stopping panel system according to FIG. 13. FIG. 16 illustrates a perspective view of the ventilation stopping panel system according to FIG. 13 in a second orientation.

Referring to FIGS. 13-16, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 1300. The ventilation stopping panel system 1300 includes a first panel 1302 and second panel 1304 panel. The first panel 1302 and second panel 1304 are movable relative to each other as shown by arrow 1305. The first panel 1302 includes a safety mechanism 1312 and 1308 and the second panel 1304 includes a safety mechanism 1306 and 1314. The safety mechanism 1312 and 1308 are shorter than the safety mechanisms 1306 and 1314 of the second panel 1304.

The safety mechanisms 1306, 1308, 1310, and 1312 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanism 1306, 1308, 1310, and 1312 include a rolled hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanism 1306, 1308, 1310, and 1312 also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 1310 as shown and described herein.

FIG. 17 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

Referring to FIG. 17, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 1700. The ventilation stopping panel system 1700 includes a first panel 1702 and second panel 1704 panel. The first panel 1702 and second panel 1704 are movable relative to each other as described herein. The first panel 1702 includes a safety mechanism 1706 and 1708 the second panel 1704 includes a safety mechanism 1710 and 1712. The safety mechanisms 1706, 1708, 1710, and 1712 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 1706, 1708, 1710, and 1712 each include a flat hem and terminate at the same length on each panel. The safety mechanisms 1706, 1708, 1710, and 1712 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanisms 1706, 1708, 1710, and 1712 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 1706, 1708, 1710, and 1712 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. There is a structural enhancement mechanism 1714 as described herein.

FIG. 18 illustrates a top view of a ventilation stopping panel system according to another embodiment of the invention.

Referring to FIG. 18, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 1800. The ventilation stopping panel system 1800 includes a first panel 1802 and second panel 1804 panel. The first panel 1802 and second panel 1804 are movable relative to each other as described herein. The first panel 1802 includes a safety mechanism 1806 and 1808 the second panel 1804 includes a safety mechanism 1810 and 1812. The safety mechanisms 1806, 1808, 1810, and 1812 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 1806, 1808, 1810, and 1812 each include a flat hem and terminate at the different lengths. The safety mechanisms 1810 and 1812 of the second panel 1804 terminate at length shorter than the safety mechanisms 1806 and 1808 of the first panel 1802. The safety mechanisms 1806, 1808, 1810, and 1812 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanisms 1806, 1808, 1810, and 1812 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 1806, 1808, 1810, and 1812 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. There is a structural enhancement mechanism 1814 as described herein.

FIG. 19 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention. FIG. 20 illustrates a top view of the ventilation stopping panel system according to FIG. 19.

Referring to FIGS. 19-20, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 1900. The ventilation stopping panel system 1900 includes a first panel 1902 and second panel 1904 panel. The first panel 1902 and second panel 1904 are movable relative to each other as shown by arrow 1905. The first panel 1902 includes a safety mechanism 1906 and 1908 and the second panel 1904 includes a safety mechanism 1910 and 1912. The safety mechanism 1906 is arranged in a location behind the safety mechanism 1910. The safety mechanism 1908 is arranged in a location behind the safety mechanism 1912.

Each of the safety mechanisms 1906, 1908, 1910, and 1912 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 1906, 1908, 1910, and 1912 include a flat hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanism 1906, 1908, 1910, and 1912 also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 1914 and 1916 or corrugation as shown. The enhancement mechanism is described herein.

FIG. 21 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 21, the ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2100. The ventilation stopping panel system 2100 includes a first panel 2102 and second panel 2104 panel. The first panel 2102 and second panel 2104 are movable relative to each other as described herein. The first panel 2102 includes a safety mechanism 2110 and 2112 and the second panel 2104 includes a safety mechanism 2106 and 2108. The safety mechanism 2106 is arranged in a location behind the safety mechanism 2110. The safety mechanism 2108 is arranged in a location behind the safety mechanism 2108.

Each of the safety mechanisms 2110, 2106, 2108, and 2112 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2110, 2106, 2108, and 2112 include a flat hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanism 2110, 2106, 2108, and 2112 also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 2114 or corrugation as shown. The enhancement mechanism is described herein.

FIG. 22 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 22, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2200. The ventilation stopping panel system 2200 includes a first panel 2202 and second panel 2204 panel. The first panel 2202 and second panel 2204 are movable relative to each other as described herein. The first panel 2202 includes a safety mechanism 2208 the second panel 2204 includes a safety mechanism 2212. The other safety mechanisms on each panel are not shown.

The safety mechanisms are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms each include a flat hem and terminate at the same lengths relative to each other. The safety mechanisms act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The flat edges of the safety mechanisms are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 2214 or corrugation as shown and described herein.

FIG. 22B illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 22B, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2201. The ventilation stopping panel system 2201 includes a first panel 2216 and second panel 2218 panel. The first panel 2216 and second panel 2218 are movable relative to each other as described herein. The first panel 2216 includes a safety mechanisms 2220 and 2228 the second panel 2218 includes a safety mechanisms 2222 and 2226.

The safety mechanisms 2220, 2222, 2226, and 2228 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2220, 2222, 2226, and 2228 each include a flat hem and terminate at the same lengths relative to each other. The safety mechanisms 2220, 2222, 2226, and 2228 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The flat edges of the safety mechanisms are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 2214 or corrugation as shown and described herein.

FIG. 23 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 23, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2300. The ventilation stopping panel system 2300 includes a first panel 2302 and second panel 2304 panel. The first panel 2302 and second panel 2304 are movable relative to each other. The first panel 2302 includes a safety mechanism 2306 and 2312 the second panel 2304 includes a safety mechanism 2306 and 2308.

The safety mechanisms 2306, 2308, 2310, and 2312 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2306, 2308, 2310, and 2312 each include a flat hem and terminate at the same lengths relative to each other. The safety mechanisms 2306, 2308, 2310, and 2312 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The flat edges of the safety mechanisms 2306, 2308, 2310, and 2312 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 2306, 2308, 2310, and 2312 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 2314 or corrugation as shown and described herein.

FIG. 24 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

Referring to FIG. 24, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2400. The ventilation stopping panel system 2400 includes a first panel 2402 and second panel 2404 panel. The first panel 2402 and second panel 2404 are movable relative to each other as shown by arrow 2405. The first panel 2402 includes a safety mechanism 2406 and 2408 and the second panel 2404 includes a safety mechanism 2410 and 2412. The safety mechanism 2406 is arranged in a location behind the safety mechanism 2410. The safety mechanism 2408 is arranged in a location behind the safety mechanism 2412.

Each of the safety mechanisms 2406, 2408, 2410 and 2412 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2406, 2408, 2410 and 2412 include a rolled hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanism 2406, 2408, 2410 and 2412 also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 2414 and 2416 or corrugation as shown and described herein.

FIG. 25 illustrates a perspective view of a ventilation stopping panel system according to an embodiment of the invention.

Referring to FIG. 25, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2500. The ventilation stopping panel system 2500 includes a first panel 2502 and second panel 2504 panel. The first panel 2502 and second panel 2504 are movable relative to each other as described herein. The first panel 2502 includes a safety mechanism (not shown) and safety mechanism 2508 the second panel 2504 includes a safety mechanism 2510 and 2512. The safety mechanism 2508 is arranged in a location behind the safety mechanism 2512.

Each of the safety mechanisms are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms include a rolled hem to act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edges of the safety mechanism also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. Also, there is an enhancement mechanism includes a bend 2514 and 2516 or corrugation as shown and described herein.

FIG. 26 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 26, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2600. The ventilation stopping panel system 2600 includes a first panel 2602 and second panel 2604 panel. The first panel 2602 and second panel 2604 are movable relative to each other. The first panel 2602 includes a safety mechanism 2608 and 2614 the second panel 2604 includes a safety mechanism 2606 and 2612.

The safety mechanisms 2606, 2608, 2610, and 2612 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2606, 2608, 2610, and 2612 each include a rolled hem and terminate at the same lengths relative to each other. The safety mechanisms 2606, 2608, 2610, and 2612 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled hem of the safety mechanisms 2606, 2608, 2610, and 2612 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 2606, 2608, 2610, and 2612 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. The hem 2608 is arranged behind hem 2606 and hem 2614 is behind hem 2612. Also, there is an enhancement mechanism includes a bend 2610 as shown and described herein.

FIG. 27 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 27, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2700. The ventilation stopping panel system 2700 includes a first panel 2702 and second panel 2704 panel. The first panel 2702 and second panel 2704 are movable relative to each other as described herein. The first panel 2702 includes a safety mechanism 2706 and 2714 the second panel 2704 includes a safety mechanism 2708 and 2712.

The safety mechanisms 2706, 2708, 2712, and 2714 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2706, 2708, 2712, and 2714 each include a rolled hem and terminate at the same lengths relative to each other. The safety mechanisms 2706, 2708, 2712, and 2714 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled hem of the safety mechanisms 2706, 2708, 2712, and 2714 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 2706, 2708, 2712, and 2714 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. The hem 2708 is arranged behind hem 2706 and hem 2712 is behind hem 2714. Also, there is an enhancement mechanism includes a bend 2710 or corrugation as shown and described herein

FIG. 28 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 28, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2800. The ventilation stopping panel system 2800 includes a first panel 2802 and second panel 2804 panel. The first panel 2802 and second panel 2804 are movable relative to each other. The first panel 2802 includes a safety mechanism 2808 and 2814 the second panel 2804 includes a safety mechanism 2806 and 2812.

The safety mechanisms 2806, 2808, 2812, and 2814 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2806, 2808, 2812, and 2814 each include a rolled hem and terminate at the same lengths relative to each other. The safety mechanisms 2806, 2808, 2812, and 2814 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled hem of the safety mechanisms 2806, 2808, 2812, and 2814 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 2806, 2808, 2812, and 2814 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. The hem 2808 is arranged behind hem 2806 and in an offset configuration and hem 2814 is behind hem 2812 and in an offset configuration. Also, there is an enhancement mechanism includes a bend 2810 or corrugation as shown and described herein.

FIG. 29 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 29, a ventilation stopping panel system with additional or enhanced structural integrity is shown with regard to reference number 2900. The ventilation stopping panel system 2900 includes a first panel 2902 and second panel 2904 panel. The first panel 2902 and second panel 2904 are movable relative to each other. The first panel 2902 includes a safety mechanism 2906 and 2912 the second panel 2904 includes a safety mechanism 2908 and 2914.

The safety mechanisms 2906, 2908, 2912, and 2914 are configured along an edge or partial edge of panel in various embodiments. As shown the safety mechanisms 2906, 2908, 2912, and 2914 each include a rolled hem and terminate at the same lengths relative to each other. The safety mechanisms 2906, 2908, 2912, and 2914 act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled hem of the safety mechanisms 2906, 2908, 2912, and 2914 are also configured to reinforce the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The safety mechanism 2906, 2908, 2912, and 2914 run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension. The hem 2908 is arranged behind hem 2906 and in a non-offset configuration and hem 2914 is behind hem 2912 and in a non-offset configuration. Also, there is an enhancement mechanism includes a bend 2910 or corrugation as shown and described herein.

FIG. 30 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention. The apparatus 3000 is similar to other embodiments described herein. The apparatus 3000 includes a first enhancement mechanism 3002 and second enhancement mechanism 3004.

FIG. 31 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention. The apparatus 3100 is similar to other embodiments described herein. The apparatus 3100 includes an enhancement mechanism 3102.

FIG. 32 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

Referring to FIG. 32 showing a bottom view of the ventilation stopping panel system according to another embodiment of an invention. The apparatus 3200 is similar to other embodiments described herein. The apparatus 3200 includes a first enhancement mechanism 3202, a second enhancement mechanism 3204, a third enhancement mechanism 3206, a fourth enhancement mechanism 3208, a fifth enhancement mechanism 3210 and a sixth enhancement mechanism 3212.

FIG. 33 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention.

FIG. 33 illustrates a bottom view of the ventilation stopping panel system according to another embodiment of an invention. The apparatus 3300 is similar to other embodiments described herein. The apparatus 3300 includes a first enhancement mechanism 3302, a second enhancement mechanism 3304, a third enhancement mechanism 3306, a fourth enhancement mechanism 3308, a fifth enhancement mechanism 3310 and a sixth enhancement mechanism 3312.

FIG. 34 illustrates safety mechanisms according to an embodiment of the invention.

Referring to FIG. 34, various safety mechanisms are shown. The different safety mechanism include a flattened hem 3402, an open hem 3404, teardrop hem 3406, radius flat hem 3408, modified flat hem 3410, rope hem 3412 and modified rope hem 3414. Optionally and/or alternatively, the safety mechanism include a coating. As shown in the material 3403 between the two surfaces is optional and can include any dimension or thickness. The material 3403 may be made of metal, alloy, plastic, thermoplastic or combination of the same. The material 3408 may also be any length, e.g., shorter or longer. Any of these safety mechanisms can be used in any of the embodiments as described herein.

The safety mechanisms act as a safety measure to prevent lacerations that are common when handling and expanding sheet metal especially as the proximate sheet metal panels telescope to their final configuration. The rolled edge also reinforces the edge of the sheet metal offering additional strength as well as serves to reduce damage to the sheet metal edge that can impinge upon or prevent the telescoping feature. The two rolled edges of the present invention run alongside each other also acts as a tracking system to give the overall panel more rigidity and structural integrity during extension.

FIG. 35 illustrates edge configurations according to an embodiment of the invention.

Referring to FIG. 35, various end lengths of any of the ventilation mining panels described herein are shown. In this embodiment, the end portions 3502 of the mining panels show an inner leg shorter than an outer leg 3504. The inner leg 3503 and the outer leg 3505 safety features are both turned inward. The end portion 3507 include a rolled hem as a safety feature and the end portion 3509 include a rolled hem as a safety feature. Alternatively, any safety mechanism as described herein may be utilized.

In this embodiment, the end portions 3504 of the mining panels show an inner leg 3517 longer than an outer leg 3515. The inner leg 3517 and the outer leg 3515 safety features are both turned outward. The end portion 3511 includes a rolled hem as a safety feature and the end portion 3513 includes a rolled hem as a safety feature. Alternatively, any safety mechanism as described herein may be utilized.

In this embodiment, the end portions 3506 of the mining panels show an inner leg 3517 longer than an outer leg 3515. The inner leg 3517 and the outer leg 3515 safety features are both turned away from each other. The end portion 3523 includes a rolled hem as a safety feature and the end portion 3525 includes a rolled hem as a safety feature. Alternatively, any safety mechanism as described herein may be utilized.

In this embodiment, the end portions 3508 of the mining panels show an inner leg 3531 longer than an outer leg 3533. The inner leg 351 and the outer leg 3533 safety features are both turned away from each other. The end portion 3529 includes a rolled hem as a safety feature and the end portion 3535 includes a rolled hem as a safety feature. Alternatively, any safety mechanism as described herein may be utilized.

FIG. 36A illustrates a perspective view of the ventilation stopping panel system according to another embodiment of an invention. FIG. 36B illustrates a side view of the ventilation stopping panel system according to another embodiment of an invention. FIG. 36C illustrates a back view of the ventilation stopping panel system according to another embodiment of an invention.

Referring FIGS. 36A-36C, two nested mining panels (inner panel (3206) and exterior panel (3202)) as described herein are shown. The interior panel 3206 has an endcap 3208 and the exterior panel 3202 has an end cap 3204. The interior panel 3206 can telescope or vertically extend as described herein and in this embodiment the end cap 3208 is on a top portion.

Each of the end caps 3208 and 3206 are attached to the exterior panels with one or more rivets. In a preferred, embodiment four rivets are used to secure each end cap near or at a corner of each panel as shown. Each of the end caps are configured to increase strength of each panel. As shown herein each of the end caps reside within at least a portion of the c-channel of each panel. In use, a foam pad or sealing material (not shown) is applied to the end of the end cap to help with making it air tight.

FIG. 37A illustrates an installation view of the ventilation stopping panel system according to another embodiment of an invention. FIG. 37B illustrates an installation view of the ventilation stopping panel system according to FIG. 37A. Referring to FIGS. 37A-37B,

Referring to FIGS. 37A-37B, a ventilation stopping panel system installed is shown. Initially, the site preparation is prepared by removing all debris and sloughed material. The area should be provided with clean floor, level as possible and with smooth ribs as possible. This allows for a clear path to accommodate the mine stopping ventilation panels as described herein and jacks.

Next, one or more rib angles (3702, 3704, and/or 3706) are installed. This can be done by holding one or more panels fully 3708, 3710, and 3712, telescoped roof to floor, against each rib, remove all major rib undulations. Recheck work with the stopping section. Reduce rib-to panel gap to less than 2 inches as possible. In a preferred embodiment, each panel must be held tightly against the ribs, but do not have to be perfectly straight vertically. Side extensions (not shown) may be used if necessary, to fill in any gaps.

In a preferred embodiment, if the ribs are fairly sound, make a hole with a drill or other in each rib about 2 inches diameter by 1 inch deep to temporarily hold the rib angles in place. This also can be done by driving the rib angles into the rib using a proper hammering device. Insert a rib angle into each hole with the point side of the rib angle facing you and the open end resting against the panel channels.

In a preferred embodiment, one row of rib angles pass across the stopping where the panel sections intersect. Install all rib angles at this time and secure any overlapped rib angle areas with tape. Keeping the rib angles directly above each other will help maintain panel alignment. Also, in a preferred embodiment, there is a minimum of two or more rib angles used per stopping installation.

In operation, a fully extended panel 3708 with a jack 3703 is arranged in a middle of the area to be sealed. Optional head seals can be used by placing the foam pad 3718 in at least a portion of the end cap 3717 of the panel 3708. To expand the panel the base of the installation jack rests securely on the foot of the panel and not the floor. Insert the installation jack in the panel's top and bottom grooves and begin jacking the panel until the jack begins to bow slightly. Apply heavy pressure on all panels. The roof-to-floor pressure exerted by jacking the panels holds the metal stoppings in place and not the angle's anchorage into the rib.

Attach a twist clamp 3900 is arranged around the rib angle and insert the clamp ends into the panel's inside flanges, e.g., c-channel portion 3904. The twist clamp 3900 is tighten around the rib angle by twisting the clamp, making sure that the ends remain in the panel's channel. This is repeated with additional twist clamps to secure the panel. FIG. 38 shows the twist clamp. The twist clamp 3900 includes a first portion 3902, a second portion 3906, and tightening portion 3908. As you rotate the tighenting portion 3908 the clamp 3900 attaches or secures the stopping 3718 to the rib 3702.

Starting at either rib angle, place a panel next to the rib and begin jacking it into place. Secure the panel to the rib angles using twist clamps and orient the panel so that the outside pan is up.

Panels 3712, 3710 and 378 are added in the same way across the entry using the same orientation with all outside pans installed up. Do not alternate panel orientation. Installing panels with the same orientation provides improved longevity of the sealant when the panels telescope during convergence. In a preferred embodiment, twist clamps 3900 should be placed at least four per panel if there are two rows of angles and six per panel if there are three rows of angles.

When reaching the previously installed center panel, loosen the center panel clamps and slide it over to join the other panels. Continue adding panels until you approach within 3 or 4 ft of the opposite rib. Install a panel against the opposite rib and anchor it with twist clamps. Continue to add panels back toward the center until you are within 1 ft or less of the other panels. A lap over panel must then be installed to cover the remaining gap.

Optionally, lap over panels can be used to fill gaps and are placed behind any previously installed metal panels. Place a lap over panel clamp in the lap over the panel's flanges and ensure that both ends of the lap over clamp are engaged in the flanges. Hold the lap over panel against the outside of the structure and insert twist clamps around the rib angles and in the lap over clamp's holes. Tighten clamps in place using a proper tool. Jacks cannot be used on lap over panels. Lap over panels can be used to compensate for irregularities such as uneven surfaces, out-of-plumb ribs, benches, brows, holes and other irregular features.

Optionally and/or alternatively, stopping doors (not shown) and be used to replace a number of foot-wide panels on the stopping and are installed in the same way as regular panels using similar tools and installation procedures. Stopping doors are known in the art. Door kits are in kit form and include all necessary hardware including short panels, rib angles and head seals for installation. To install a steel stopping door, the stopping must first be built across the opening. Continue to add panels to the stopping until you reach the area where the stopping door will be installed.

Optionally and/or alternatively, side extensions (not shown) can be used to fill any side openings of the panels due to irregularities and can be overlapped to fill large areas that need to be blocked. Side extensions are known int art and can extend the side extension over the edge so that the flat area of the extension fills the opening.

Also, sealing can be done to file major gaps, e.g., extra head seals can be used for larger openings, while smaller cracks and seams can be sealed directly. Sealant is applied to the perimeter of the stopping and between all vertical panel joints on the smooth or closed panel side. Foam packs, fireproofing mastic, cementitious sealant or other suitable mine sealant can be used to provide leakage control and added strength to the completed structure.

The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present invention as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It is to be clearly understood that the foregoing description is made only by way of example and not as a limitation to the scope of the invention. Particularly, it is recognized that the teachings of the foregoing disclosure will suggest other modifications to those persons skilled in the relevant art. Such modifications may involve other features that are already known per se and which may be used instead of or in addition to features already described herein. Although claims have been formulated in this application to particular combinations of features, it should be understood that the scope of the disclosure herein also includes any novel feature or any novel combination of features disclosed either explicitly or implicitly or any generalization or modification thereof which would be apparent to persons skilled in the relevant art, whether or not such relates to the same invention as presently claimed in any claim and whether or not it mitigates any or all of the same technical problems as confronted by the present invention.

The inventions and methods described herein can be viewed as a whole, or as a number of separate inventions, that can be used independently or mixed and matched as desired. All inventions, steps, processes, devices, and methods described herein can be mixed and matched as desired. All previously described features, functions, or inventions described herein or by reference may be mixed and matched as desired.

It will be apparent to those skilled in the art that various modifications and variation can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

EXPANDABLE MINE STOPPING PANEL

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Provisional Applications (1)