LOUVER GUARD ASSEMBLY AND SYSTEM

Description

FIELD

The present invention generally relates to louver assemblies and systems, and in particular to a louver guard assembly and system with integrated security features.

BACKGROUND

Conventional louver assemblies include a plurality of angled slats horizontally oriented on a frame. The louver slats are rotatable about an axis such that the louver slats may be opened or closed to admit or limit light or airflow through an opening of a structure, and/or to provide privacy for an interior space of the structure. The frame may be mounted on an interior or exterior surface of the structure and adjacent to the opening such as a window, and the rotation of the louver slats may be manually operated or motorized such that the louver slats open and close together. Manually-operated louver assemblies may be mounted on an interior such that the louver slats are accessible to the user, and motorized or otherwise automatically operated louver assemblies may be mounted on an exterior surface adjacent to the opening.

As louver slats rotate between an open position and a closed position, either the front end or back end of the louver slats may protrude beyond the frame and interfere with the window, thereby limiting operation of the louver assembly. To overcome this, additional clearance is required between the frame and the window. To prevent protruding of louver slats, the frame may be enlarged in depth, however space limitations may prevent deeper frames from being used.

While louver assemblies provide limited additional security and may deter persons from entering through the opening, the slats and the mechanism by which the louver slats operate are relatively fragile and lightweight, at least in part due to the mechanism by which louver assemblies rotate. In applications where security is of concern, security bars may also be installed over the opening, offering substantially greater protection. Conventional security bars include fixed rods mounted to a frame, and the frame may be mounted to the opening. Mounting a louver assembly over security bars presents additional challenges and limitations due to both the additional depth required for stacking the louver assembly over the security bar and due to potential interference between the louver slats and the fixed rods. As a result, users may elect to install only one of the two depending on the application.

Accordingly, there is a need for an improved louver assembly with integrated security bars.

SUMMARY

An object of the present invention is to address one or more the above technological problems outlined with respect to the prior art.

Another object of the present invention is to provide a louver system with integrated security bars in a single frame that allows for maneuverability of louvers without interference between the louvers and bars.

As the various exemplary embodiments discussed herein illustrate, the unique and unconventional combination of elements set forth herein overcome the technological challenges posed in louver assemblies that otherwise lack robust security features.

In embodiments, a louver system comprises at least one elongate body comprising a plurality of openings extending along a length of the elongate body; and, at least one louver assembly comprising: a bar having a first end portion and a second end portion; at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body; a sleeve at least partially disposed over the bar; and a louver disposed on the sleeve; rotation of the at least one louver assembly in a first direction resulting in the louver being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, and rotation of the at least one louver assembly in a second direction resulting in the louver being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.

In embodiments, the at least one louver assembly comprises a plurality of louver assemblies, one of rotation of the at least one louver assembly in the first direction or displacement of the at least one elongate body in the first linear direction resulting in each respective louver of the plurality of louver assemblies being placed in a corresponding open configuration and one of rotation of the at least one louver assembly in the second direction or displacement of the at least one elongate body in the second linear direction resulting in each louver of the plurality of louvers being placed in a corresponding closed configuration.

In embodiments, the at least one elongate body comprises a first elongate body and a second elongate body each comprising a plurality of openings extending along a length of each respective elongate body.

In embodiments, the at least one sprocket comprises a first sprocket disposed at the first end portion of the bar and a second sprocket disposed at the second end portion of the bar, the first sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the first elongate body and the second sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the second elongate body.

In embodiments, the bar has a first opening at the first end portion and a second opening at the second end portion.

In embodiments, each of the first and second sprockets comprises a central opening, a first counterbore opening disposed at one side of the central opening and a second counterbore opening disposed at an opposite side of the central opening.

In embodiments, the central openings of the first and second sprockets comprise a corresponding at least one radial extending key extending from an inner surface between the first counterbore opening and the second counterbore opening.

In embodiments, a diameter of the bar is larger than a diameter of the central openings of the first and second sprockets and less than a diameter of the second counterbores of the first and second sprockets.

In embodiments, the first end portion of the bar is configured for insertion into the second counterbore of the first sprocket and the second end portion of the bar is configured for insertion in the second counterbore of the second sprocket.

In embodiments, the louver system further comprises a first end cap disposed over the first sprocket.

In embodiments, the louver system further comprises a second end cap disposed over the second sprocket.

In embodiments, each of the first and second end caps comprise a shaft having a first end portion, a middle portion and a second end portion, a diameter of the first end portion being larger than a diameter of the middle portion and a diameter of the middle portion being larger than a diameter of the second portion.

In embodiments, the diameter of the first end portion of the shafts of the first and second end caps is smaller than the diameter of the first counterbore opening of the first and second sprockets and larger than the diameter of the central openings of the first and second sprockets.

In embodiments, the shaft of the first end cap is configured for insertion through the first sprocket and the first opening of the bar so that the first end portion of the shaft is inserted into the first counterbore opening of the first sprocket, and the second end portion and at least a portion of the middle portion of the shaft is inserted into the first opening of the bar.

In embodiments, the shaft of the second end cap is configured for insertion through the second sprocket and the second opening of the bar so that the first end portion of the shaft is inserted into the first counterbore opening of the second sprocket, and the second end portion and at least a portion of the middle portion of the shaft is inserted into the second opening of the bar.

In embodiments, each shaft of the first end cap and second end cap comprise at least one keyway, the at least one radial extending key configured for insertion into the at least one keyway.

In embodiments, each of the first and second sprockets comprises a at least one radial extending key extending from an inner peripheral surface of the second counterbore opening.

In embodiments, the bar comprises at least one keyway extending along the length of the bar.

In embodiments, the at least one radial extending key extending from the inner peripheral surface of the respective first and second sprockets is configured for insertion into the at least one keyway of the bar.

In embodiments, the sleeve comprises at least one keyway extending from an inner surface of the sleeve and along a length of the sleeve configured for insertion into the at least one keyway of the bar.

In embodiments, the at least one elongate body comprises a chain, a rail, a belt or a worm-drive.

In embodiments, a louver system comprises at least one elongate body comprising a plurality of openings extending along a length of the elongate body; and, a plurality of louver assemblies, each of the plurality of louver assemblies comprising: a corresponding bar having a first end portion and a second end portion; a corresponding at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body; a corresponding sleeve at least partially disposed over the bar; and a corresponding louver disposed on the sleeve; rotation of one of the plurality of louver assemblies in a first direction resulting in the corresponding louvers being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, and rotation of one of the plurality of louver assemblies in a second direction resulting in the corresponding louvers being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.

In embodiments, a louver system comprises a inner frame comprising: at least one sidewall each having at least one aperture positioned along a length of the at least one sidewall; and, at least one channel extending along a length of the at least one sidewall; at least one elongate body disposed in the at least one channel of the inner frame, the at least one elongate body comprising a plurality of openings extending along a length of the elongate body; at least one louver assembly comprising: a bar having a first end portion and a second end portion; at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body; a sleeve at least partially disposed over the bar; a louver disposed on the sleeve; and, at least one end cap extending through the at least one aperture of the at least one sidewall and disposed over each at least one sprocket; rotation of the at least one louver assembly in a first direction resulting in the louver being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, and rotation of the at least one louver assembly in a second direction resulting in the louver being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.

In embodiments, the at least one louver assembly comprises a plurality of louver assemblies, wherein one of rotation of the at least one louver assembly in the first direction and displacement of the at least one elongate body in the first linear direction resulting in each respective louver of the plurality of louver assemblies being placed in a corresponding open configuration and one of rotation of the at least one louver assembly in the second direction and displacement of the at least one elongate body in the second linear direction resulting in each louver of the plurality of louvers being placed in a corresponding closed configuration.

In embodiments, the bar has a first opening at the first end portion and a second opening at the second end portion.

In embodiments, wherein a diameter of the bar is larger than a diameter of the central openings of the first and second sprockets and less than a diameter of the second counterbores of the first and second sprockets.

In embodiments, the at least one end cap comprises a first end cap disposed over the first sprocket and a second end cap disposed over the second sprocket.

In embodiments, each shaft of the first end cap and second end cap comprise at least one keyway, the at least one radial extending key configured for insertion into the at least one keyway.

In embodiments, each of the first and second sprockets comprises a at least one radial extending key extending from an inner peripheral surface of the second counterbore opening.

In embodiments, the bar comprises at least one keyway extending along the length of the bar.

In embodiments, the at least one elongate body comprises a chain, a rail, a belt or a worm-drive.

In embodiments, the at least one elongate body comprises a T-shaped rail.

In embodiments, the louver assembly is configured for placement within a inner frame so that the at least one elongate body is displaced relative to the inner frame.

In embodiments, the at least one elongate body comprises a T-shaped rail.

In embodiments, the louver assembly is configured for placement within an inner frame so that the at least one elongate body is displaced relative to the inner frame.

In embodiments, the inner frame comprises a channel extending along a length of the at least one sidewall of the inner frame, wherein the elongate body is translatable within the channel in at least one of the first direction and the second direction.

In embodiments, the inner frame comprises a first medial ledge and a second medial ledge, wherein the channel extends along the first medial ledge.

In embodiments, the at least one sprocket is disposed between the first medial ledge and a second medial ledge such that the first medial ledge and the second medial ledge prevent the at least one sprocket from disengaging from the elongate body.

In embodiments, the at least one aperture of the at least one sidewall comprises at least one inner aperture extending through an inner wall of the at least one sidewall and an at least one outer aperture extending through an outer wall of the at least one sidewall, wherein a shaft of the at least one end cap extends through the at least one inner aperture.

In embodiments, the at least one inner aperture has a diameter greater than a diameter of the shaft of the at least one end cap, and the diameter of the at least one inner aperture is lesser than a diameter of the end cap, and the least one outer aperture has a diameter greater than the diameter of the end cap.

In embodiments, wherein the inner frame is configured for placement within an outer frame, the outer frame affixed to an opening of a structure, the outer frame comprising a plurality of medially oriented tabs.

In embodiments, wherein the at least one sidewall of the inner frame comprises at least one slot extending from a first surface of the at least one sidewall, the at least one slot configured for engagement with the plurality of medially oriented tabs.

In embodiments, wherein the at least one slot has one of a T-shaped profile and an L-shaped profile.

In embodiments, an uppermost slot of the at least one slot has a vertical portion of an extended length relative to lengths of adjacent at least one slots such that the inner frame engages the at least one medially oriented tab of the outer frame, enabling the inner frame to pivot about the uppermost slot.

In embodiments, a middle slot of the at least one slot enables each of the at least one medially oriented tab to align with each of the at least one slot.

In embodiments, a bottommost slot of the at least one slot enables the inner frame to fully advance in relative to the outer frame such that the inner frame is removably locked with the outer frame.

In embodiments, the inner frame comprises at least one crossmember having an aperture and the outer frame comprises at least one crossmember, wherein the aperture of the inner frame and the aperture of the outer frame are concentrically aligned.

In embodiments, the inner frame further comprises a lock-pin assembly having a pin configured for advancement through the aperture of the inner frame and the aperture of the outer frame thereby prevent movement of the inner frame relative to the other frame.

In embodiments, the at least one sidewall includes a locking lever that selectively locks an uppermost tab of the outer frame to an uppermost slot of the inner frame.

Other and further objects will be explained hereinafter and more particularly delineated in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a perspective view of a louver system in accordance with exemplary embodiments of the present disclosure;

FIG. 1B is an exploded view of the louver system of FIG. 1A according to an exemplary embodiment of the present invention;

FIG. 1C is a cross-sectional view of the louver system taken along cross-section line A-A′ of FIG. 1A according to an exemplary embodiment of the present invention;

FIGS. 1D through 1G are side views of the louver system;

FIGS. 1H and 11 are cross-sectional views of a lock-pin assembly according to an exemplary embodiment of the present invention;

FIG. 2A is a perspective view of a sidewall of the inner frame according to an exemplary embodiment of the present invention;

FIG. 2B is a cross-sectional view of the sidewall taken along cross-section line B-B′ of FIG. 2A according to an exemplary embodiment of the present invention;

FIG. 3 is a perspective view of a louver assembly in accordance with exemplary embodiments of the present invention;

FIG. 4A is an exploded view of the louver assembly according to an exemplary embodiment of the present invention;

FIG. 4B is a detailed exploded view of the louver assembly according to an exemplary embodiment of the present invention;

FIG. 5A is a perspective view of a sprocket of the louver assembly in accordance with exemplary embodiments of the present invention;

FIG. 5B is a cross-sectional view of the sprocket taken along cross-section line C-C′ of FIG. 5A according to an exemplary embodiment of the present invention;

FIG. 6A is a cross-sectional view of the louver assembly taken along line D-D′ of FIG. 3 according to an exemplary embodiment of the present invention;

FIG. 6B is a cross-sectional view of the louver assembly 200 taken along line E-E′ of FIG. 4A according to an exemplary embodiment of the present invention.

FIG. 7 is a perspective view of the sidewall and the louver assembly in accordance with exemplary embodiments of the present invention;

FIG. 8 is a cross-sectional view of the louver assembly of FIG. 7 taken along cross-cross-section line F-F′ of FIG. 7 according to an exemplary embodiment of the present invention;

FIG. 9 is a perspective view of the louver assembly in a partially open configuration according to an exemplary embodiment of the present invention;

FIG. 10 is a perspective view of the louver assembly in a closed configuration according to an exemplary embodiment of the present invention;

FIG. 11 is a perspective view of the louver assembly in an open configuration according to an exemplary embodiment of the present invention;

FIG. 12A-12E illustrate schematic views of the louver assembly in accordance with exemplary embodiments of the present invention;

FIG. 13 is a perspective view of an inner frame of a louver assembly according to an exemplary embodiment of the present invention;

FIG. 14 is a perspective view of an inner frame of a louver assembly according to an exemplary embodiment of the present invention with slot brackets removed for ease of illustration; and

FIG. 15 is a perspective view of an inner frame of a louver assembly according to an exemplary embodiment of the present invention with components removed to show a louver actuation assembly.

In the drawings, exemplary embodiments of the invention are illustrated by way of example, it being expressly understood that the description and drawings are only for the purpose of illustration of exemplary embodiments and are not intended as a definition of the limits of the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The following description is presented to enable a person of ordinary skill in the art to make and use the invention, and is provided in the context of particular applications and their requirements. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. In the following description, numerous details are set forth for the purpose of explanation. However, one of ordinary skill in the art will realize that the invention may be practiced without the use of these specific details. In other instances, well-known structures and devices are shown in block diagram form in order not to obscure the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The invention generally relates to various technological improvements in louver assemblies. In particular, the invention relates to a louver guard assembly and system with integrated security features. The louver system disclosed herein comprises an inner frame having at least one sidewall each having at least one aperture positioned along a length of the at least one sidewall and. The at least one channel extending along a length of the at least one sidewall; at least one elongate body disposed in the at least one channel of the inner frame, the at least one elongate body comprising a plurality of openings extending along a length of the elongate body; at least one louver assembly comprising: a bar having a first end portion and a second end portion; at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body; a sleeve at least partially disposed over the bar; a louver disposed on the sleeve; and, at least one end cap extending through the at least one aperture of the at least one sidewall and disposed over each at least one sprocket; rotation of the at least one louver assembly in a first direction resulting in the louver being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, and rotation of the at least one louver assembly in a second direction resulting in the louver being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.

FIG. 1A is a perspective view of a louver system 100 in accordance with exemplary embodiments of the present disclosure, and FIG. 1B is an exploded view of the louver system 100. FIG. 2B is a cross-sectional view of the louver system 100 taken along cross-section line A-A′. With reference to FIGS. 1A through 1C, in embodiments, the louver system 100 comprises an outer frame 110 and an inner frame 130. In embodiments, the louver system 100 is installed in an opening of a structure, such as a window. The inner frame 130 is configured for placement within the outer frame 110, and the installed outer frame 110 and inner frame 130 are co-planar with a surface of the structure, defining an x-y plane. A depth of the outer frame 110 and inner frame 130 extends in y-z plane defined by the thicknesses of either the outer frame 110 or inner frame 130.

As used herein the term “vertical” denotes an orientation in the x direction (in the x-y plane) and the term “horizontal” denotes an orientation in the y direction (in the x-y plane). As used herein, the terms “medial,” “lateral,” “distal,” “proximal,” “inner” and “outer” are relative positional terms in the x-y plane. As used herein, the terms “top” and “bottom” are relative positional terms in the z-direction (in the x-z or y-z planes). It is understood that the louver system 100 may be in any orientation in the x-y-z planes, and that the orientation shown in the figures is merely exemplary. By way of example, but not limitation, the louver system 100 may be mounted over a window of a structure, or on a slanted or horizontal roof of a structure (such as a skylight).

The outer frame 110 includes opposing sidewalls 112 which are connected by at least one crossmember 114. In embodiments, the opposing sidewalls 112 and the at least one crossmember 114 define a unitary body. In embodiments, the opposing sidewalls 112 have an L-shaped profile defining a medial ledge 116 and a wall 118, and the at least one crossmember 114 is affixed to the medial ledge 116. The wall 118 comprises at least one medially oriented tab 120.

The inner frame 130 includes opposing sidewalls 132 which are connected by at least one crossmember 152 disposed on a corresponding first surface 138 of the opposing sidewalls 132. In embodiments, the opposing sidewalls 132 and the at least one crossmember 152 define a unitary body. In embodiments, each of at least one sidewall 132 of the inner frame 130 includes at least one slot 154 extending from the first surface 138 of the at least one sidewall 132, the at least one slot 154 configured for engagement with the at least one medially oriented tab 120 (as best shown in FIG. 1C). In embodiments, the at least one slot 154 has one of a T-shaped profile or an L-shaped profile or any other suitable shape configured for engagement with the at least one medially oriented tab 120.

FIGS. 1D through 1G illustrate side views of the louver system 100. In operation, the inner frame 130 is oriented such that an uppermost medially oriented tab 120a of the outer frame 110 is oriented with an uppermost slot 154a of the inner frame 130, and the inner frame 130 is advanced in a A-direction (as indicated by an arrow shown in FIG. 1D) such that the uppermost slot 154a of the inner frame 130 engages with the uppermost medially oriented tab 120a of the outer frame 110. The inner frame 130 is then advanced in a B-direction (as indicated by an arrow shown in FIG. 1E) such that the uppermost medially oriented tab 120a of the outer frame 110 at least partially advances within the uppermost slot 154a of the inner frame 130. The inner frame 130 is pivotable about a pivot axis C′ (as indicated by an arrow shown in FIGS. 1E and 1F) defined by the uppermost slot 154a of the inner frame 130 (as shown in FIGS. 1E and 1F). The inner frame 130 is pivoted about the pivot axis C′ such that the inner frame 130 is seated within the outer frame 110 and each of the at least one medially oriented tab 120 are at least partially engaged with the each of the at least one at least one slot 154 as shown in FIG. 1F. The inner frame 130 is advanced in the y-direction such that each of the at least one medially oriented tab 120 are fully engaged with the each of the at least one at least one slot 154 as shown in FIG. 1G.

As best shown in FIG. 1G, the uppermost slot 154a has a vertical portion 164 of an extended length relative to lengths of adjacent at least one slots 154 such that the inner frame 130 engages the at least one medially oriented tab 120 of the outer frame 110. The uppermost slot 154a enables the inner frame 130 to pivot outward. The middle slot 154b enables each of the at least one medially oriented tab 120 to align with each of the at least one slot 154. The bottommost slot 154c enables the inner frame 130 to fully advance in the y-direction such that the inner frame 130 is removably locked with the outer frame 110.

As shown in FIGS. 1H and 11, in embodiments, the inner frame 130 further comprises a lock-pin assembly 170 disposed over an aperture 153 of the at least one crossmember 152. The aperture 153 of the at least one crossmember 152 of the inner frame 130 is concentric with an aperture 115 of the at least one crossmember 114 of the outer frame 110. In embodiments, the lock-pin assembly 170 comprises a housing 172 and a pin 174 disposed within the housing 172. In embodiments, the pin 174 is spring-loaded. The pin 174 is advanceable in the z-direction such that alignment of the apertures (115, 153) causes the pin 174 to drop into the aperture 115 of the at least one crossmember 114 of the outer frame 110 and thereby prevent movement of the inner frame 130 in the y-direction.

In embodiments, the inner frame 130 is inserted (in the z-direction) into the outer frame 110 such that the inner frame 130 abuts the medial ledge 116 and the at least one medially oriented tab 120 is at least partially inserted into the at least one slot 154. The inner frame 130 is removably locked with the outer frame by advancing the inner frame 130 in the y-direction such that the at least one medially oriented tab 120 is fully inserted into the at least one slot 154.

FIG. 2A is a perspective view of a sidewall 132 of the inner frame 130 and FIG. 2B is a cross-sectional view of the sidewall 132 taken along cross-section line B-B′. With reference to FIGS. 2A and 2B, in embodiments, the sidewall 132 is defined by an inner wall 134 and an outer wall 136 parallel to and integral with one another. In embodiments, the inner wall 134 and an outer wall 136 form opposite walls of a square or rectangular structural tube. In embodiments, a first medial ledge 142 extends from the first surface 138 and a second medial ledge 144 extends from a second surface 140 opposite the first surface 138 and the first medial ledge 142, respectively. In embodiments, the first medial ledge 142 includes a channel 146 extending along a length of the sidewall 132. In embodiments, the channel 146 is a t-track channel. In embodiments, an inner aperture 148 extends through the inner wall 134 and an outer aperture 150 extends through the outer wall 136. The inner aperture 148 is concentric with the outer aperture 150, and the apertures (148, 150) define an axis of rotation X-X′ by which the louver assembly 200 of FIG. 1 rotates about. In embodiments, the inner aperture 148 has a diameter D₁and the outer aperture 150 has a diameter D₂. In embodiments, the diameter D₂is larger than the diameter D₁. In embodiments, the diameter D₂is substantially equal to the diameter D₁.

FIG. 4A is an exploded view of the louver assembly and FIG. 4B is a detailed exploded view of the louver assembly. With reference to FIGS. 4A and 4B, the louver assembly 200 includes a bar 210 having a first end portion 212 and a second end portion (not shown) and a keyway 214 extending between the first end portion 212 and the second end portion (not shown). In embodiments, the bar 210 further includes an opening 216 at the first end portion 212 and an opening (not shown) at the second end portion (not shown). As shown in FIG. 4B, in embodiments, the opening 216 has a diameter Do. The louver assembly 200 further includes at least one sprocket 220, one of each disposed on the first end portion 212 and the second end portion respectively.

FIG. 5A is a perspective view of the at least one sprocket 220 and FIG. 5B is a cross-sectional view of the at least one sprocket 220 taken along cross-section line C-C′ of FIG. 5A. With reference to FIGS. 4A through 5B, the at least one sprocket 220 comprises a first end surface 222 and a second end surface 224 opposite the first end surface 222. In embodiments, a central opening 226 extends between the first end surface 224 and the second end surface 224. A plurality of teeth 240 are disposed on an outer circumferential surface 242 of the at least one sprocket 220. As best shown in FIG. 5B, a first counterbore opening 228 is disposed on the first end surface 222 and a second counterbore opening 230 is disposed on the second end surface 224. The first counterbore opening 228 has a diameter D_1C, the second counterbore opening 230 has a diameter D_2Cand the central opening 226 has a diameter D_CO. In embodiments, the central opening 226, the first counterbore opening 228, and the second counterbore opening 230 are concentric about the axis of rotation X-X′.

As best shown in FIGS. 4B and 5B, in embodiments, at least one radial extending key 232 is disposed at an inner surface 234 between the first counterbore opening 228 and the second counterbore opening 230. In embodiments, at least one radial extending key 236 extends from an inner peripheral surface 238 of the second counterbore opening 230. In embodiments, the diameter D_1Cof the first counterbore opening 228 is larger than the diameter D_COof the central opening 226 such that a bar interface surface 244 is formed. In embodiments, the diameter D_2Cof the second counterbore opening 230 is larger than the diameter D_COof the central opening 226 such that an end cap interface surface 246 is formed.

Referring back to FIGS. 4A and 4B, the louver assembly 200 further includes a sleeve 280 at least partially disposed over the bar 210. In embodiments, the sleeve 280 has at least one key 282 extending from an inner surface 284 of the sleeve 280 and along a length of the sleeve 280 configured for insertion into the at least one keyway 214 of the bar 210. Alternatively, the bar may have a key configured for insertion into a keyway of the sleeve. In embodiments, the sleeve 280 is cylindrical. In embodiments, the sleeve 280 is semicylindrical and partially envelopes the bar 210. In embodiments, the sleeve 280 further includes a slat mounting portion 286 extending tangentially from an outer surface 288 of the sleeve 280. As best shown in FIG. 1A, a louver slat 290 is disposed over the slat mounting portion 286.

The louver assembly 200 further includes at least one end cap 250 disposed over the at least one sprocket 220 and the bar 210. As best shown in FIGS. 4A and 4B, in embodiments, each of the at least one end cap 250 includes a shaft 252 having a first end portion 254, a middle portion 256 and a second end portion 258. In embodiments, the middle portion 256 of the shaft 252 includes at least one keyway 260.

FIG. 6A illustrates a cross-sectional view of the louver assembly 200 taken along line D-D′ of FIG. 3, and FIG. 6B illustrates a cross-sectional view of the louver assembly 200 taken along line E-E′ of FIG. 4A. With reference to FIG. 4A, the first end portion 212 of the bar 210 is inserted into the second counterbore opening 228 of the at least one sprocket 220 such that the first end portion 212 abuts the bar interface surface 244 of the at least one sprocket 220. In embodiments, the bar 210 has a diameter DB smaller than the diameter D2C of the second counterbore opening 228. In embodiments, the diameter DB of the bar 210 is sized and configured to form an interference fit with the second counterbore opening 228. In embodiments, the bar 210 is threaded into the second counterbore opening 228 of the at least one sprocket 220. In embodiments, the at least one radial extending key 236 (of FIG. 4B) positioned at the second counterbore opening 228 is configured for insertion into the at least one keyway 214 of the bar 210, such that the bar 210 and the at least one sprocket 220 rotate about the axis of rotation X-X′ together.

In embodiments, the first end portion 254 of the shaft 252 has a diameter D_1P, the middle portion 256 has a diameter D_MPand the second end portion 258 has a diameter D_2P. In embodiments, the diameter D_1Pof the first end portion 254 is larger than the diameter D_MPof the middle portion 256 and the diameter D_MPof the middle portion 256 is larger than the diameter D_2Pof the second portion 258. In embodiments, the diameter D_1Pof the first end portion 254 of the shaft 252 of the end cap 250 is smaller than the diameter D_1Cof the first counterbore opening 230 of the at least one sprocket 220 and is larger than the diameter D_COof the central opening 226 of the at least one sprocket 220. In embodiments, the shaft 252 of the first end cap 250 is configured for insertion through the at least one sprocket 220 and the opening 230 of the bar 210 so that the first end portion 254 of the shaft 252 is inserted into the first counterbore opening 230 of the first sprocket 220, and the second end portion 258 and at least a portion of the middle portion 256 of the shaft 252 is inserted into the first opening of the bar 210. In embodiments, the shaft 252 of the end cap 250 is threaded into at least one of the bar 210 and the at least one sprocket 220. In embodiments, the shaft 252 of the end cap 250 is configured to form an interference fit with at least one of the bar 210 and the at least one sprocket 220.

FIG. 7 illustrates a perspective view of the sidewall 132 of the inner frame 130, the at least one sprocket 220 and the bar 210 of the louver assembly 200. FIG. 8 illustrates a cross-sectional view of the inner frame 130, the at least one sprocket 220 and the bar 210 of the louver assembly 200 taken along cross-section line F-F′ of FIG. 7. With reference to FIGS. 7 and 8, the at least one sprocket 220 of the louver assembly 200 is disposed between the first medial ledge 142 and the second medial ledge 144 and the at least one sprocket 220 is positioned adjacent to and concentric with the axis of rotation X-X′ defined by the inner aperture 148 of the sidewall 132. An elongate body 160 is disposed within the channel 146 of the sidewall 132 so that the elongate body 160 is translatable within the channel 146 in at least one of a first direction and a second direction relative to the inner frame 130 in the y-direction. The elongate body 160 has a plurality of openings 162 extending along a length of the elongate body 160 configured to engage with a plurality of teeth 240 of the at least one sprocket 220. The first medial ledge 142 and the second medial ledge 144 prevent the at least one sprocket 220 from moving in the z-direction and from disengaging from the elongate body 160.

Rotation of the at least one sprocket 220 about the axis of rotation X-X′ causes displacement of the elongate body 160 along the channel 146 in the first direction and the second direction along the y-direction due to the engagement of the plurality of teeth 240 of the at least one sprocket 220 with the plurality of openings 162 of the elongate body. In embodiments, the elongate body 160 includes a chain, a rail, a belt or a worm-drive, to name a few components. In embodiments, the elongate body 160 includes a T-shaped rail configured to engage with a t-shaped channel, thereby preventing the elongate body 160 from moving in the z-direction.

As best shown in FIG. 8, insertion of the shaft 252 of the end cap 250 through the inner aperture 148, the sprocket 220 and the bar 210 secures the louver assembly 200 to the sidewall 132. In operation, the bar 210 is inserted into the sprocket 220, and the sprocket 220 is positioned at the inner aperture 148. The end cap 250 is inserted through the outer aperture 150 and inner aperture 158 such that the end cap 250 secures the louver assembly 200 to the sidewall 132. The diameter D₁of the inner aperture 148 of the sidewall 132 is greater than the diameter D_2Pof the second end portion 258 of the shaft 252 of the end cap 250, and a diameter of the end cap D is greater than the diameter D₁of the inner aperture 148 of the sidewall 132.

FIG. 9 is a perspective view of the louver assembly 200 in a partially open configuration, FIG. 10 is a perspective view of the louver assembly 200 in a closed configuration, and FIG. 11 is a perspective view of the louver assembly 200 in an open configuration. Engagement of the plurality of teeth of the sprocket (not shown) with the plurality of openings 162 of the elongate body 160 causes the sprocket (not shown) to rotate about the axis of rotation X-X′ and the elongate body 160 to advance in the channel 146 of the sidewall 132 in the y-direction. Rotation of the at least one louver assembly 200 about the rotation axis X-X′ in a first direction results in the louver slat 290 being placed in an open configuration and displacement of the at least one elongate body 160 in a first linear direction. Rotation of the at least one louver assembly 200 about the rotation axis X-X′ in a second direction results in the louver slat 290 being placed in a closed configuration and displacement of the at least one elongate body 160 in a second linear direction opposite the first linear direction.

FIG. 12A-12E illustrate schematic views of the bar and the louver slat of the louver assembly in accordance with exemplary embodiments. As shown in FIG. 12A, a bar 310 includes a channel 312 configured for receiving of a louver slat 390 within the channel 312. As shown in FIG. 12B, a bar 410 includes a protrusion 412 extending tangentially from an outer surface of the bar 410. The protrusion 412 includes a channel 414 for receiving a louver slat 416 within the channel 414. As shown in FIG. 12C, a bar 510 includes a louver slat 512 extending tangentially from and integral with an outer surface of the bar 510. As shown in FIG. 12D, a bar 610 includes a key 612 extending from an outer surface of the bar 610. A snap-on sleeve 620 comprises a louver slat 622 integral with and extending from an outer surface of the snap-on sleeve 620. In embodiments, the snap-on sleeve 620 further comprises a keyway 624 configured for insertion into the key 612 of the bar 610. As shown in FIG. 12E, a bar 710 includes a key 712 extending from an outer surface of the bar 710. A tube 720 comprises a louver slat 722 integral with and extending from an outer surface of the tube 720. In embodiments, the tube 720 further comprises a keyway 724 configured for insertion into the key 712 of the bar 710.

FIG. 13 shows an inner frame, generally designated by reference number 1030, according to an exemplary embodiment of the present invention. The inner frame 1030 includes side walls 1132a and 1132b. Each side wall 1132a and 1132b has the same construction, so for ease of explanation, only side wall 1132a will be described herein. Side wall 1132a includes a top slot bracket 1154a, at least one central slot bracket 1154b and a bottom slot bracket 1154c. As with the previously described exemplary embodiments, tabs of the outer frame are configured to engage with the openings in the slot brackets 1154a, 1154b, 1154c of the inner frame 1030 so that the inner frame is removably attached to the outer frame. As described in more detail below, the inner frame 1030 includes a locking lever 1140 that selectively prevents the upper tab of the outer frame from disengaging from the top slot bracket 1154c. The locking lever 1140 prevents the inner frame 1030 from falling on a user when the inner frame 1030 is swung out for window access.

FIG. 14 shows the inner frame 1030 with the slot brackets 1154a, 1154b, 1154c removed for ease of illustration. The locking lever 1140 is pivotally attached to the side wall 1132a and is biased in a closed configuration by, for example, a spring mechanism (not shown). In the closed configuration, the locking lever 1140 is oriented upwards along the longitudinal axis of the side wall 1132a to prevent the upper tab from being removed from the top slot bracket 1154c. The locking lever 1140 is attached to a cable 1142, which in turn is attached to a bracket 1144 that is slidably moveable up and down along the side wall 1132a. Movement of the bracket 1144 downwards results in pulling of the cable 1142 downwards, which in turn results in pivoting of the locking lever 1140 out of alignment with the upper tab so that the top slot bracket 1154c can be removed from the upper tab. The bracket 1144 preferably includes an opening 1146 so that a user can more easily grasp the bracket 1144 to pull the locking lever 1140 into the open configuration.

FIG. 15 shows an inner frame, generally designated by reference number 2030, according to an exemplary embodiment of the present invention. The inner frame 2030 includes side walls 2132a and 2132b. Each side wall 2132a and 2132b has the same construction, so for ease of explanation, only side wall 1132a will be described herein. The inner frame 2030 may have the same construction as the inner frame according to previously described exemplary embodiments except that the louvers do not rotate via a teeth and sprocket arrangement. Instead, the inner frame 2040 is provided with rotating discs 2140 that are attached to one another by one or more linkages 2142. The discs 2140 may be attached to corresponding rods (not show) that are in turn attached to a corresponding louver 2144. The discs 2140 may be disposed within a chamber formed in the side wall 2132a or may be disposed on an inner surface of the side wall 2132a. The linkages 2142 between the discs 2140 allow for all of the louvers 2144 to be moved together by rotation of just one of the discs 2140. For example, the louvers 2144 may be attached together by a vertically extending rod so that manipulation of the rod up and down results in opening and closing of the louvers 2144. As another example, a user may manipulate just one of the louvers 2144 between an open and closed configuration, resulting in the other louvers also being opened and closed due to attachment of the manipulated louver 2144 with the other louvers 2144 via the linkages 2142. As another example, the inner frame 1030 may be provided with a motor with a corresponding gear linked to one or more of the discs 2140, so that actuation of the motor results in rotation of the gear, which in turn results in rotation of the discs 2140.

While this invention has been described in conjunction with the exemplary embodiments outlined above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the exemplary embodiments of the invention, as set forth above, are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit and scope of the invention.

Claims

1. A louver system comprising: at least one elongate body comprising a plurality of openings extending along a length of the elongate body; and,at least one louver assembly comprising: a bar having a first end portion and a second end portion;at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body;a sleeve at least partially disposed over the bar; anda louver disposed on the sleeve;rotation of the at least one louver assembly in a first direction resulting in the louver being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, androtation of the at least one louver assembly in a second direction resulting in the louver being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.
2. The louver system of claim 1, wherein the at least one louver assembly comprises a plurality of louver assemblies, one of rotation of the at least one louver assembly in the first direction or displacement of the at least one elongate body in the first linear direction resulting in each respective louver of the plurality of louver assemblies being placed in a corresponding open configuration and one of rotation of the at least one louver assembly in the second direction or displacement of the at least one elongate body in the second linear direction resulting in each louver of the plurality of louvers being placed in a corresponding closed configuration.
3. The louver system of claim 1, wherein the at least one elongate body comprises a first elongate body and a second elongate body each comprising a plurality of openings extending along a length of each respective elongate body.
4. The louver system of claim 3, wherein the at least one sprocket comprises a first sprocket disposed at the first end portion of the bar and a second sprocket disposed at the second end portion of the bar, the first sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the first elongate body and the second sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the second elongate body.
5. The louver system of claim 4, wherein the bar has a first opening at the first end portion and a second opening at the second end portion.
6. The louver system of claim 5, wherein each of the first and second sprockets comprises a central opening, a first counterbore opening disposed at one side of the central opening and a second counterbore opening disposed at an opposite side of the central opening.
7. The louver system of claim 6, wherein the central openings of the first and second sprockets comprise a corresponding at least one radial extending key extending from an inner surface between the first counterbore opening and the second counterbore opening.
8. The louver system of claim 7, wherein a diameter of the bar is larger than a diameter of the central openings of the first and second sprockets and less than a diameter of the second counterbores of the first and second sprockets.
9. The louver system of claim 8, wherein the first end portion of the bar is configured for insertion into the second counterbore of the first sprocket and the second end portion of the bar is configured for insertion in the second counterbore of the second sprocket.
10. The louver system of claim 9, further comprising a first end cap disposed over the first sprocket.
11. The louver system of claim 10, further comprising a second end cap disposed over the second sprocket.
12. The louver system of claim 11, wherein each of the first end cap and second end cap comprise a shaft having a first end portion, a middle portion and a second end portion, a diameter of the first end portion being larger than a diameter of the middle portion and a diameter of the middle portion being larger than a diameter of the second portion.
13. The louver system of claim 12, wherein the diameter of the first end portion of the shafts of the first and second end caps is smaller than the diameter of the first counterbore opening of the first and second sprockets and larger than the diameter of the central openings of the first and second sprockets.
14. The louver system of claim 13, wherein the shaft of the first end cap is configured for insertion through the first sprocket and the first opening of the bar so that the first end portion of the shaft is inserted into the first counterbore opening of the first sprocket, and the second end portion and at least a portion of the middle portion of the shaft is inserted into the first opening of the bar.
15. The louver system of claim 14, wherein the shaft of the second end cap is configured for insertion through the second sprocket and the second opening of the bar so that the first end portion of the shaft is inserted into the first counterbore opening of the second sprocket, and the second end portion and at least a portion of the middle portion of the shaft is inserted into the second opening of the bar.
16. The louver system of claim 14, wherein each shaft of the first end cap and second end cap comprises at least one keyway, the at least one radial extending key configured for insertion into the at least one keyway.
17. The louver system of claim 6, wherein each of the first and second sprockets comprises at least one radial extending key extending from an inner peripheral surface of the second counterbore opening.
18. The louver system of claim 17, wherein the bar comprises at least one keyway extending along the length of the bar.
19. The louver system of claim 18, wherein the at least one radial extending key extending from the inner peripheral surface of the respective first and second sprockets is configured for insertion into the at least one keyway of the bar.
20. The louver system of claim 18, wherein the sleeve comprises at least one keyway extending from an inner surface of the sleeve and along a length of the sleeve configured for insertion into the at least one keyway of the bar.
21. The louver system of claim 1, wherein the at least one elongate body comprises a chain, a rail, a belt or a worm-drive.
22. The louver system of claim 1, wherein the at least one elongate body comprises a T-shaped rail.
23. The louver system of claim 1, wherein the louver assembly is configured for placement within a frame so that the at least one elongate body is displaced relative to the frame.
24. A louver system comprising: at least one elongate body comprising a plurality of openings extending along a length of the elongate body; and,a plurality of louver assemblies, each of the plurality of louver assemblies comprising: a corresponding bar having a first end portion and a second end portion;a corresponding at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body;a corresponding sleeve at least partially disposed over the bar; anda corresponding louver disposed on the sleeve;rotation of one of the plurality of louver assemblies in a first direction resulting in the corresponding louvers being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, androtation of one of the plurality of louver assemblies in a second direction resulting in the corresponding louvers being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.
25. A louver system comprising: an inner frame comprising: at least one sidewall each having at least one aperture positioned along a length of the at least one sidewall; and,at least one channel extending along a length of the at least one sidewall;at least one elongate body disposed in the at least one channel of the inner frame, the at least one elongate body comprising a plurality of openings extending along a length of the elongate body;at least one louver assembly comprising: a bar having a first end portion and a second end portion;at least one sprocket disposed at the first or second end portion of the bar, the at least one sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the at least one elongate body;a sleeve at least partially disposed over the bar;a louver disposed on the sleeve; and,at least one end cap extending through the at least one aperture of the at least one sidewall and disposed over each at least one sprocket;rotation of the at least one louver assembly in a first direction resulting in the louver being placed in an open configuration and displacement of the at least one elongate body in a first linear direction, androtation of the at least one louver assembly in a second direction resulting in the louver being placed in a closed configuration and displacement of the at least one elongate body in a second linear direction.
26. The louver system of claim 25, wherein the at least one louver assembly comprises a plurality of louver assemblies, wherein one of rotation of the at least one louver assembly in the first direction and displacement of the at least one elongate body in the first linear direction resulting in each respective louver of the plurality of louver assemblies being placed in a corresponding open configuration and one of rotation of the at least one louver assembly in the second direction and displacement of the at least one elongate body in the second linear direction resulting in each louver of the plurality of louvers being placed in a corresponding closed configuration.
27. The louver system of claim 25, wherein the at least one elongate body comprises a first elongate body and a second elongate body each comprising a plurality of openings extending along a length of each respective elongate body.
28. The louver system of claim 27, wherein the at least one sprocket comprises a first sprocket disposed at the first end portion of the bar and a second sprocket disposed at the second end portion of the bar, the first sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the first elongate body and the second sprocket comprising a plurality of teeth configured to engage with the plurality of openings of the second elongate body.
29. The louver system of claim 28, wherein the bar has a first opening at the first end portion and a second opening at the second end portion.
30. The louver system of claim 29, wherein each of the first and second sprockets comprises a central opening, a first counterbore opening disposed at one side of the central opening and a second counterbore opening disposed at an opposite side of the central opening.
31. The louver system of claim 30, wherein the central openings of the first and second sprockets comprise a corresponding at least one radial extending key extending from an inner surface between the first counterbore opening and the second counterbore opening.
32. The louver system of claim 31, wherein a diameter of the bar is larger than a diameter of the central openings of the first and second sprockets and less than a diameter of the second counterbores of the first and second sprockets.
33. The louver system of claim 32, wherein the first end portion of the bar is configured for insertion into the second counterbore of the first sprocket and the second end portion of the bar is configured for insertion in the second counterbore of the second sprocket.
34. The louver system of claim 33, wherein the at least one end cap comprises a first end cap disposed over the first sprocket and a second end cap disposed over the second sprocket.
35. The louver system of claim 34, wherein each of the first and second end caps comprise a shaft having a first end portion, a middle portion and a second end portion, a diameter of the first end portion being larger than a diameter of the middle portion and a diameter of the middle portion being larger than a diameter of the second portion.
36. The louver system of claim 35, wherein the diameter of the first end portion of the shafts of the first and second end caps is smaller than the diameter of the first counterbore opening of the first and second sprockets and larger than the diameter of the central openings of the first and second sprockets.
37. The louver system of claim 36, wherein the shaft of the first end cap is configured for insertion through the first sprocket and the first opening of the bar so that the first end portion of the shaft is inserted into the first counterbore opening of the first sprocket, and the second end portion and at least a portion of the middle portion of the shaft is inserted into the first opening of the bar.
38. The louver system of claim 37, wherein the shaft of the second end cap is configured for insertion through the second sprocket and the second opening of the bar so that the first end portion of the shaft is inserted into the first counterbore opening of the second sprocket, and the second end portion and at least a portion of the middle portion of the shaft is inserted into the second opening of the bar.
39. The louver system of claim 37, wherein each shaft of the first end cap and second end cap comprise at least one keyway, the at least one radial extending key configured for insertion into the at least one keyway.
40. The louver system of claim 30, wherein each of the first and second sprockets comprises a at least one radial extending key extending from an inner peripheral surface of the second counterbore opening.
41. The louver system of claim 40, wherein the bar comprises at least one keyway extending along the length of the bar.
42. The louver system of claim 41, wherein the at least one radial extending key extending from the inner peripheral surface of the respective first and second sprockets is configured for insertion into the at least one keyway of the bar.
43. The louver system of claim 42, wherein the sleeve comprises at least one keyway extending from an inner surface of the sleeve and along a length of the sleeve configured for insertion into the at least one keyway of the bar.
44. The louver system of claim 25, wherein the at least one elongate body comprises a chain, a rail, a belt or a worm-drive.
45. The louver system of claim 25, wherein the at least one elongate body comprises a T-shaped rail.
46. The louver system of claim 25, wherein the louver assembly is configured for placement within an inner frame so that the at least one elongate body is displaced relative to the inner frame.
47. The louver system of claim 46, wherein the inner frame comprises a channel extending along a length of the at least one sidewall of the inner frame, wherein the elongate body is translatable within the channel in at least one of the first direction and the second direction.
48. The louver system of claim 47, wherein the inner frame comprises a first medial ledge and a second medial ledge, wherein the channel extends along the first medial ledge.
49. The louver system of claim 48 wherein the at least one sprocket is disposed between the first medial ledge and a second medial ledge such that the first medial ledge and the second medial ledge prevent the at least one sprocket from disengaging from the elongate body.
50. The louver system of claim 25, wherein the at least one aperture of the at least one sidewall comprises at least one inner aperture extending through an inner wall of the at least one sidewall and an at least one outer aperture extending through an outer wall of the at least one sidewall, wherein a shaft of the at least one end cap extends through the at least one inner aperture.
51. The louver system of claim 50, wherein the at least one inner aperture has a diameter greater than a diameter of the shaft of the at least one end cap, and the diameter of the at least one inner aperture is lesser than a diameter of the end cap, and the least one outer aperture has a diameter greater than the diameter of the end cap.
52. The louver system of claim 25, wherein the inner frame is configured for placement within an outer frame, the outer frame affixed to an opening of a structure, the outer frame comprising a plurality of medially oriented tabs.
53. The louver system of claim 52, wherein the at least one sidewall of the inner frame comprises at least one slot extending from a first surface of the at least one sidewall, the at least one slot configured for engagement with the plurality of medially oriented tabs.
54. The louver system of claim 53, wherein the at least one slot has one of a T-shaped profile and an L-shaped profile.
55. The louver system of claim 54, wherein an uppermost slot of the at least one slot has a vertical portion of an extended length relative to lengths of adjacent at least one slots such that the inner frame engages the at least one medially oriented tab of the outer frame, enabling the inner frame to pivot about the uppermost slot.
56. The louver system of claim 55, wherein a middle slot of the at least one slot enables each of the at least one medially oriented tab to align with each of the at least one slot.
57. The louver system of claim 55, wherein a bottommost slot of the at least one slot enables the inner frame to fully advance in relative to the outer frame such that the inner frame 130 is removably locked with the outer frame.
58. The louver system of claim 25, wherein the inner frame comprises at least one crossmember having an aperture and the outer frame comprises at least one crossmember, wherein the aperture of the inner frame and the aperture of the outer frame are concentrically aligned.
59. The louver system of claim 58, wherein the inner frame further comprises a lock-pin assembly having a pin configured for advancement through the aperture of the inner frame and the aperture of the outer frame thereby prevent movement of the inner frame relative to the other frame.

Priority Claims (1)

Number	Date	Country	Kind
202410031143.2	Jan 2024	CN	national

Provisional Applications (1)

	Number	Date	Country
	63605885	Dec 2023	US

LOUVER GUARD ASSEMBLY AND SYSTEM

Information

Publication Number

Date Filed

Date Published

Inventors

CPC

International Classifications

Abstract

Description

Claims

Priority Claims (1)

Provisional Applications (1)