Patent Grant
7338050
The present invention relates generally to seals and, more specifically, to an expansion joint gasket positionable between similar or dissimilar materials having an exterior exposure to the elements. In the preferred embodiment, the expansion joint gasket of the present invention provides means to seal a space occurring between mated articles such as walls and windows, doors, electrical outlets, lighting fixtures, fans, ventilation grille, etc.
Currently, it is the custom, especially in new construction, to seal spaces between walls and articles placed in walls with expandable foams or other forms of insulation, which for the short term fulfill their intended purpose. But, since these material are affected differently by temperature and age, spaces between these article tend to occur over time, especially materials having a water content such as, wood, stucco and concrete. Over time these material have a tendency to shrink, thereby causing spaces to occur between mating surfaces and failure of the sealant therebetween. Once failure occurs structural integrity empirically disintegrates as water seeps through to the underlayment. Particularly in areas where the temperature drops to a point where the water freezes accelerating material failure.
The present invention overcomes the shortcomings of the prior art by providing an elastomeric member positioned between the mating articles that will expand and contract as the void between the articles changes due to the forces acting upon the materials such as, temperature and age.
The present invention is embodied by compressing the elastomeric member in the void during installation, which will allow for expansion and contraction of the elastomeric member during the life of the structure.
Also provided for by the present invention is adhesively bonding the elastomeric member to each of the mating articles, which also seals the void during expansion and contraction during the life of the structure.
Furthermore, the present invention provides for embedding or impressing part of the elastomeric member into a curing substance, such as concrete and stucco whereby one end of the elastomeric member becomes anchored into the material as it cures. The other end would engage the opposing article with or without adhesively bonding it thereto.
The present invention provides an elastomeric member that will expand and contract, forming an expansion joint gasket between mating articles, comprising a first article engaging member and a second article engaging member spaced from each other having an expandable contractible portion positioned therebetween.
There are other sealing devices designed for mating articles. Typical of these is U.S. Pat. No. 1,723,306 issued to Sipe on Aug. 6, 1929.
Another patent was issued to Bradley on Sep. 16, 1952 as U.S. Pat. No. 2,610,713. Yet another U.S. Pat. No. 3,166,332 was issued to Olson on Jan. 19, 1965 and still yet another was issued on Jul. 14, 1970 to Taylor as U.S. Pat. No. 3,520,544.
Another patent was issued to Berry on Apr. 17, 1973 as U.S. Pat. No. 3,727,926. Yet another U.S. Pat. No. 4,388,016 was issued to Levey on Jun. 14, 1983. Another was issued to Mileham on Oct. 7, 1986 as U.S. Pat. No. 4,615,161 and still yet another was issued on Jan. 26, 1993 to Keys, et al. as U.S. Pat. No. 5,181,341.
Another patent was issued to Butler on Aug. 15, 1995 as U.S. Pat. No. 5,440,847. Yet another U.S. Pat. No. 5,628,857 was issued to Baerveldt on May 13, 1997. Another was issued to Gallas on Oct. 27, 1998 as U.S. Pat. No. 5,826,378. Another German patent DE3142690 was issued to Herbert Borkhoff on May 19, 1983 and still yet another was issued on Jan. 17, 1939 to Newton as United Kingdom Patent No. GB 498,992.
A coupling of the class described comprising an elongated strip of resilient material, and means disposed at the opposite sides of said strip in connection with which the members to be coupled together thereby are adapted to operate for coupling said members together, and means for reinforcing that part of, the strip bridging said members.
A coupling of the class described comprising an elongated strip of resilient material, and means disposed at the opposite sides of said strip in connection with which the members to be coupled together thereby are adapted to operate for coupling said members together, and means for reinforcing that part of, the strip bridging said members.
A pressure assembly comprising a pair of separable substantially rigid members with opposed parting faces providing a parting joint about a cavity to be substantially sealed against a fluid pressure differential, one of said members having in its parting face an elongated recess opening therefrom toward the opposing parting face, a strip of elastomeric material having substantially, separate, independently acting, small, generally bubble-like gas cells having flexible interconnected walls of the elastomeric material, said strip having a main portion sealingly engaged in and initially filling said recess, said strip having an initially outwardly projecting rib portion containing said bubble-like gas cells which extend approximately to an outer surface so that said gas cells may be compressed and conformed to the parting face of the other member and to any irregularities thereon, and said rib portion being compressibly displaced by said parting face of said other member entirely into the initial volume of said main portion by the elastic volume reduction of said gas cells in said main portion.
In combination with a pair of adjustable compression members which define a cavity in which high pressures are encountered, a sealing ring comprising a one-piece sealing ring of approximate Y-shape in radial section and having a stem and arms extending inwardly from the stem, said stem of the Y comprising a 180° bend and two spaced parallel portions contacting each other at their inner ends and providing a first cavity, each arm of the Y being convex outwardly and concave inwardly; each of said arms projecting inwardly from each of said parallel portions and joining said respective parallel portions at an obtuse angle with respect to the exterior face of said sealing ring, said arms being in opposed facing relationship to each other, the space between the two arms of the Y being clear, said arms terminating respectively at spaced apart tips such that planes tangent to said tips intersect to form an angle significantly less than 180° and forming a second cavity, said adjustable members compressing said seal and creating an internal line contact in said seal.
The invention relates to a sealed joint comprising a first and a second member between which is formed a substantially L-shaped cross-sectional recess in, which is placed a gasket which has a corresponding L-shaped cross-sectional section. The gasket and the recess are so formed that a continuous and excellent sealing is provided between the two members and the gasket, and that no excessive compression or deformation of the gasket is to be feared.
This invention relates to a novel and improved expansion joint and seal for use in sealing concrete expansion joints. In general the device is constituted of an elongate flexible seal member inclusive of an expandable loop portion from the non-closed sides of which a pair of alternately disposed downwardly projected leg portions is extended. The device also includes a pair of elongate side frames, each of which is attached to an alternately disposed downwardly projected leg portion of said elongate flexible seal member, and a removable, elongate top cap for affixing upon the loop portion of said elongate flexible seal member. The improvement relates to, inter alia, in said member, side frames which contain one or more pairs of inwardly sloped laterally aligned ribs which form longitudinal channels with relatively wide bottom surfaces with restricted surface outlets, the channel forming a means of tenaciously bonding plastic cement to said side frames to form a flexible seal. The side frames also include upwardly faced deep U-shaped slots within which each of the leg portions of said expandable loop portion of the elongate flexible seal is extended, and bonded by use of adhesive.
An expansion joint for a structure such as a bridge or roadway comprising a pair of elongate tubes 14, 16 each having a longitudinal slot 24, 26 and a relatively wider channel 32, 34 and a folded strip 22 of polymeric material. The tubes 14, 16 are fixed to the structure by means of anchors 18, 20. The strip has bulbous edge portions 36, 38 which are located in the channels 32, 34. The strip 22 and tubes 14, 16 are located below the level of the structure surface.
A variable gap sealing article for sealing between a first surface and a second surface has an elongated body portion with a resilient contractible portion and an expandable portion. The article fills a gap between the surfaces by expanding the expandable portion and compressing the contractible portion.
A molded exterior decorative unit for securement to a structural facing comprises a molded unit with front and back surfaces and side edges. The front surface has decorative features, while a channel is molded in the back surface into which a compressible, expandable, flexible sealing member is partially secured. Preferably, a groove is formed in the floor of the channel so as to provide a labyrinth path for air or moisture. Upon securement of the molded decorative unit to a facing, the compressible, expandable, flexible sealing member forms a seal adjacent the periphery of the molded unit. In one embodiment, weep holes or slots are provided at the back adjacent a bottom surface of the molded exterior decorative unit. In another embodiment, where the unit is adapted for securement in a recess in the structural facing, the channel is formed in the side edge of the molded unit, and the compressible, expandable, flexible sealing member forms a seal between the side edge and a surrounding wall forming the recess.
A method of manufacturing a retaining element for an expansion joint seal comprises co-extruding, in a desired profile, a thermoplastic rubber body with high density thermoplastic elastomer reinforcing plate on the lower surface thereof. The reinforcing plate includes at least one rib extending into the thermoplastic rubber body. After the co-extruded body and reinforcing plate are permitted to cool and harden the lower surface of said co-extruded body and reinforcing plate is mechanically planed to obtain a retaining element of said desired profile with a flat lower surface.
A sealing strip for sealing between a flange defining the door opening, such as in a motor vehicle body, and the door of the opening, comprises a channel-shaped gripping part for gripping the flange and supporting a hollow tubular sealing part, preferably made of sponge rubber. The latter is partially compressed between the flange and the closing door so as to provide a barrier against ingress of moisture and draft. In order to provide improved blocking of acoustic energy, so as to reduce the amount of exterior noise (road noise, aerodynamic noise) transmitted into the interior of the vehicle, the hollow tubular sealing part supports a metal wire running lengthwise along and within the hollow tube and supported from the tubular side wall so as to be capable of vibrating in a transverse direction. The mass of the wire and the rigidity with which it is supported are such that the resonant frequency with which the wire vibrates is less than a frequency band of acoustic energy to be attenuated, whereby the additional material tends to vibrate in opposition to, and thus attenuates, acoustic energy within that frequency band.
In this plastic/aluminum compound construction, the outer aluminum profiles are screwed non-displaceably from the rebate groove to the inner plastic profiles and form a joint statical unit with sufficient cross-sectional strength without the additionally insertable reinforcements. Furthermore, the differing expansion of the two materials due to plastic profile compression effects between the intervals of the attachment screws is counteracted in a controlled manner. Moreover, any desired glass groove widths can be manufactured in the outer and wing frame by displacing the screwing-on surfaces infinitely variably. The aluminum profiles screwed on from the wing rebate groove allow the glass to be inserted and removed without wing glass strips, as a result of which a closed profile unit is achieved on the inside of the wing plastic profiles. One possible embodiment of this plastic/aluminum compound construction is illustrated in the drawing, sheet.
An inflatable tube adapted to be inserted in a recess in the frames or in the edges of doors, windows and the like of buildings or vehicles to exclude gas or other atmospheric pollution comprises lengths of rubber tubing jointed to corner pieces of molded rubber and provided with a tubular connection and a valve for inflation. The walls of the tube and corner piece are tapered at the ends and vulcanized one within the other and the wall of the corner piece may be of reduced thickness to facilitate uniform expansion. The tube may be of oval or D-section and a recess may be formed in the sash to be engaged by it when expanded. The tube may be secured on the channel by adhesive with or without an attached fabric strip. The invention may be applied to partitions built up of sections or to steel shutters with or without toughened glass panels for protection against bomb splinters. A hollow sheet metal mandril may be used within the tube at the joint when vulcanizing. When applied to metal windows the bottom of the frame may be rounded or a rounded metal or rubber liner may be inserted in the channel,
While these gasket-like devices may be suitable for the purposes for which they were designed, they would not be as suitable for the purposes of the present invention, as hereinafter described.
The present invention discloses an expansion gasket positionable between similar or dissimilar materials having an exterior exposure to the elements. In the preferred embodiment, the expansion gasket of the present invention provides means to seal a space occurring between mated articles such as walls and windows, doors, electrical outlets, lighting fixtures, fans, ventilation grille, etc. The gasket may have one or two bases and various shapes.
A primary object of the present invention is to provide means for mating articles comprising an expandable contractible member positioned therebetween.
Another object of the present invention is to provide an expandable contractible member between mating articles that will maintain contact with the articles as they expand and contract according to the material properties of the articles.
Yet another object of the present invention is to provide an expandable contractible member that will prevent the passage of substances through the void between mating articles having said member positioned therebetween.
Still yet another object of the present invention is to provide an expandable contractible member having elastomeric properties.
Another object of the present invention is to provide an expandable contractible member that can be compressed and positioned within the void between mating articles engaging said articles.
Yet another object of the present invention is to provide an expandable contractible member that can be adhesively bonded between mating articles fixedly engaging said articles.
Still yet another object of the present invention is to provide an expandable contractible member having a first article engaging member and a second article engaging member with a body positioned therebetween.
Another object of the present invention is to provide an expandable contractible member wherein one of the article engaging members can be embedded or impressed into a curing substance.
Yet another object of the present invention is to provide an expandable contractible member wherein said embedded member incorporates retaining means for said positioning.
Additional objects of the present invention will appear as the description proceeds.
The present invention overcomes the shortcomings of the prior art by providing an expansion gasket positionable between similar or dissimilar materials having an exterior exposure to the elements. The expansion gasket provides means to seal a space occurring between mated articles such as walls and windows, doors, electrical outlets, lighting fixtures, fans, ventilation grille, and other building construction penetrations of exterior walls etc. due to the forces acting upon the materials such as, temperature and age.
The foregoing and other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration-specific embodiments in which the invention may be practiced. These embodiments will be described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural changes may be made without departing from the scope of the invention. In the accompanying drawings, like reference characters designate the same or similar parts throughout the several views.
The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is best defined by the appended claims.
In order that the invention may be more fully understood, it will now be described, by way of example, with reference to the accompanying drawings in which:
With regard to reference numerals used, the following numbering is used throughout the drawings.
The following discussion describes in detail one embodiment of the invention (and several variations of that embodiment). This discussion should not be construed, however, as limiting the invention to those particular embodiments since practitioners skilled in the art will recognize numerous other embodiments as well. For a definition of the complete scope of the invention, the reader is directed to appended claims.
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What is claimed to be new and desired to be protected by Letters Patent is set forth in the appended claims.
| Number | Name | Date | Kind |
|---|---|---|---|
| 1723306 | Sipe | Aug 1929 | A |
| 2016968 | Marble | Oct 1935 | A |
| 2156681 | Dewhirst et al. | May 1939 | A |
| 2230688 | Irwin | Feb 1941 | A |
| 2610713 | Bradley | Sep 1952 | A |
| 3166332 | Olson | Jan 1965 | A |
| 3213584 | Bush | Oct 1965 | A |
| 3378958 | Parks et al. | Apr 1968 | A |
| 3508369 | Tennison | Apr 1970 | A |
| 3520544 | Taylor | Jul 1970 | A |
| 3604169 | Smith | Sep 1971 | A |
| 3727926 | Berry | Apr 1973 | A |
| 3760544 | Hawes et al. | Sep 1973 | A |
| D236718 | Patterson | Sep 1975 | S |
| 3923411 | Berghman | Dec 1975 | A |
| 4388016 | Levey | Jun 1983 | A |
| 4615161 | Mileham | Oct 1986 | A |
| 4815886 | Madsen | Mar 1989 | A |
| 5181341 | Keys et al. | Jan 1993 | A |
| 5440847 | Butler | Aug 1995 | A |
| 5531455 | Calixto | Jul 1996 | A |
| 5575126 | Attaway et al. | Nov 1996 | A |
| 5628857 | Baerveldt | May 1997 | A |
| 5826378 | Gallas | Oct 1998 | A |
| 5888017 | Corrie | Mar 1999 | A |
| 6219982 | Eyring | Apr 2001 | B1 |
| 6474654 | Schmeichel | Nov 2002 | B1 |
| 6491468 | Hagen | Dec 2002 | B1 |
| 6751919 | Calixto | Jun 2004 | B2 |
| 6991400 | Negueloua | Jan 2006 | B1 |
| Number | Date | Country |
|---|---|---|
| 3142690 | May 1983 | DE |
| 498992 | Jan 1939 | GB |
