초록 ▼

A relatively inexpensive bushing easily installed extending through walls, particularly, gypsum board membrane walls for providing firestopping around a limited number of linear penetrating members such as cables or wires. This grommet construction includes first and second half sections for facilit

A relatively inexpensive bushing easily installed extending through walls, particularly, gypsum board membrane walls for providing firestopping around a limited number of linear penetrating members such as cables or wires. This grommet construction includes first and second half sections for facilitating attachment around cables more easily. A split internal seal preferably of resilient foam material is positioned within a split mechanical shell which facilitates placing of the bushing around penetrating members prior to placement thereof through walls or after positioned thereof penetrating through a panel such as wallboard. A split mechanical shell with a two-piece foam insert retained within a bore extending therethrough can be formed as two separable half cylindrical shells. Barbs are included on the outer portion of the shell to facilitate mounting thereof. The foam firestopping seal portion can be intumescent.

대표청구항 ▼

1. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough comprising: A. a first half section being generally half tubularly shaped to define a first half bore means extending longitudinally t

1. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough comprising: A. a first half section being generally half tubularly shaped to define a first half bore means extending longitudinally therealong, said first half section including: (1) a first interior surface being generally arcuate and concave to define said first half bore means extending longitudinally therealong;(2) a first exterior surface being generally arcuate and convex positioned spatially disposed from said first interior surface and positioned facing radially outwardly therefrom;(3) a first abutment edge extending longitudinally along said first interior surface and said first exterior surface and being positioned extending therebetween, said first abutment edge including; a. a primary first abutment edge section extending longitudinally along said first interior surface and said first exterior surface and being positioned extending therebetween;b. a secondary first abutment edge section extending longitudinally along said first interior surface and said first exterior surface and being positioned extending therebetween at a position spatially disposed from said primary first abutment edge section with said first half bore means positioned therebetween;(4) a first head end defining a first head opening means therewithin in fluid flow communication with said first half bore means;(5) a first insertion end defining a first insertion opening means therein in fluid flow communication with respect to said first half bore means and with respect to said first head opening means;6) a first head flange section extending radially outwardly from said first exterior surface at said first head end thereof;(7) at least one first barb extending outwardly from said first exterior surface to facilitate engagement thereof with respect to the wallboard panel responsive to positioning of said first half section within the wallboard panel aperture;B. a first firestopping sealing section of flexible resilient firestopping material positionable within said first half bore means of said first half section which comprises: (1) a first sealing section arcuate surface positionable in abutment with respect to said first interior surface to facilitate retaining of said first firestopping seal section within said first half bore means;(2) a first sealing section planar surface oppositely positioned from said first sealing section arcuate surface and positionable in direct flexibly resilient abutment with penetrating members positioned extending through the fire stopping bushing to facilitate firestopping sealing therearound;C. a second half section being generally half tubularly shaped to define a second half bore means extending longitudinally therealong, said second half section and said first half section being attachable in abutment with respect to one another to position said first half bore means and said second half bore means adjacently together to define a central bore means extending axially and longitudinally through the firestopping bushing, said second half section including: (1) a second interior surface being generally arcuate and concave to define said second half bore means extending longitudinally therealong;(2) a second exterior surface being generally arcuate and convex positioned spatially disposed from said second interior surface and positioned facing radially outwardly therefrom;(3) a second abutment edge extending longitudinally along said second interior surface and said second exterior surface and being positioned extending therebetween, said second abutment edge including; a. a primary second abutment edge section extending longitudinally along said second interior surface and said second exterior surface and being positioned extending therebetween, said primary second abutment edge section of said second half section being positionable in abutment and engagement with said secondary first abutment edge section of said first half section to facilitate abutting engagement therebetween;b. a secondary second abutment edge section extending longitudinally along said second interior surface and said second exterior surface and being positioned extending therebetween at a position spatially disposed from said primary second abutment edge section with said second half bore means positioned therebetween, said secondary second abutment edge section of said second half section being positionable in abutment and engagement with said primary first abutment edge section of said first half section to facilitate abutting engagement therebetween;(4) a second head end defining a second head opening means therewithin in fluid flow communication with said second half bore means, said second head opening means and said first head opening means positioned adjacently to define together a main head opening means responsive to abutting engagement between said first half section and said second half section;(5) a second insertion end defining a second insertion opening means therein in fluid flow communication with respect to said second half bore means and with respect to said second head opening means, said second insertion opening means and said first insertion opening means positioned adjacently to define a main insertion opening means responsive to abutting engagement between said first half section and said second half section;(6) a second head flange section extending radially outwardly from said second exterior surface at said second head end, said second head flange section being positioned adjacent said first head flange section to define a head flange responsive to abutting engagement between said first half section and said second half section;(7) at least one second barb extending outwardly from said second exterior surface to facilitate engagement thereof with respect to the wallboard panel responsive to positioning of said second half section within the wallboard panel aperture;D. a second firestopping sealing section of flexible resilient firestopping material positionable within said second half bore means of said second half section which comprises: (1) a second sealing section arcuate surface positionable in abutment with respect to said second interior surface to facilitate retaining of said second firestopping sealing section within said second half bore means;(2) a second sealing section planar surface oppositely positioned from said second seal section arcuate surface and positionable in direct flexibly resilient abutment with said first seal section planar surface to define a sealing seam therebetween for receiving penetrating members positioned extending therethrough to facilitate firestopping sealing therearound. 2. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first firestopping sealing section and said second firestopping sealing section are made of a flexibly resilient foam firestopping material. 3. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first firestopping sealing section and said second firestopping sealing section are made of a flexibly resilient foam intumescent firestopping material. 4. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first half section and said second half section are configured identically with respect to one another. 5. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first half section includes a first engaging means positioned along said first abutment edge thereof and wherein said second half section includes a second engaging means positioned along said second abutment edge thereof, said first engaging means and said second engaging means being engagable with respect to one another to retain said first abutment edge of said first half section with respect to said second abutment edge of said second half section. 6. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first half section further includes: A. a first latching pin extending outwardly from said primary first abutment edge section;B. a first latching slot defined in said primary first abutment edge section spatially disposed from said first latching pin;C. a second latching pin extending outwardly from said first abutment edge second section; andD. a second latching slot defined in said secondary first abutment edge section spatially disposed from said first latching pin. 7. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 6 wherein said second half section further includes: A. a third latching pin extending outwardly from said second abutment edge first section, said third latching pin being registrable and engagable with respect to said second latching slot to facilitate engagement of said first half section to said second half section;B. a third latching slot defined in said primary second abutment edge section spatially disposed from said third latching pin, said second latching pin being registrable and engagable with respect to said third latching slot to facilitate engagement of said first half section to said second half section;C. a fourth latching pin extending outwardly from said second abutment edge second section, said fourth latching pin being registrable and engagable with respect to said first latching slot to facilitate engagement of said first half section to said second half section; andD. a fourth latching slot defined in said secondary second abutment edge section spatially disposed from said third latching pin, said first latching pin being registrable and engagable with respect to said fourth latching slot to facilitate engagement of said first half section to said second half section. 8. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 7 wherein said third latching pin is positioned closer to said second head end of said second half section than said third latching slot and wherein said fourth latching pin is positioned closer to said second insertion end of said second half section than said fourth latching slot to facilitate attachable engagement between said first half section and said second half section. 9. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 7 wherein said first latching pin includes a first latching pin shoulder and wherein said fourth latching slot includes a fourth latching slot shoulder positioned therewithin to facilitate engagement of said first latching pin within said fourth latching slot, and wherein said second latching pin includes a second latching pin shoulder and wherein said third latching slot includes a third latching slot shoulder positioned therewithin to facilitate engagement of said second latching pin within said third latching slot, and wherein said third latching pin includes a third latching pin shoulder and wherein said second latching slot includes a second latching slot shoulder positioned therewithin to facilitate engagement of said third latching pin within said second latching slot, and wherein said fourth latching pin includes a fourth latching pin shoulder and wherein said first latching slot includes a first latching slot shoulder positioned therewithin to facilitate engagement of said fourth latching pin within said first latching slot. 10. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 7 wherein said first latching pin is laterally flexible with respect to said first half section to facilitate engagement thereof with respect to said fourth latching slot, and wherein said second latching pin is laterally flexible with respect to said first half section to facilitate engagement thereof with respect to said third latching slot, and wherein said third latching pin is laterally flexible with respect to said second half section to facilitate engagement thereof with respect to said second latching slot, and wherein said fourth latching pin is laterally flexible with respect to said second half section to facilitate engagement thereof with respect to said first latching slot. 11. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 6 wherein said first latching pin is positioned closer to said first head end of said first half section than said first latching slot and wherein said second latching pin is positioned closer to said first insertion end of said first half section than said second latching slot to facilitate attachable engagement between said first half section and said second half section. 12. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first abutment edge is oriented approximately perpendicularly with respect to said first interior surface and said first exterior surface and wherein said second abutment edge is oriented approximately perpendicularly with respect to said second interior surface and said first exterior surface. 13. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first half section and said second half section are both made from thermoplastic material. 14. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 wherein said first half section includes at least two first barbs extending outwardly from said first exterior surface thereof with each said barb being spatially disposed from one another and positioned at different distances from said first head flange section to facilitate engagement thereof with respect to an aperture defined in wallboard panels of various thicknesses, and wherein said second half section includes at least two second barbs extending outwardly from said first exterior surface thereof with each said barb being spatially disposed from one another and positioned at different distances from said first head flange section to facilitate engagement thereof with respect to an aperture defined in wallboard panels of various thicknesses. 15. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 further including a first head retaining rim extending inwardly from said first interior surface into said first head opening means to facilitate retaining of said first firestopping sealing section within said first half bore means, and further including a second head retaining rim extending inwardly from said second interior surface into said second head opening means to facilitate retaining of said second firestopping sealing section within said second half bore means. 16. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 1 further including a first insertion retaining rim extending inwardly from said first interior surface into said first insertion opening means to facilitate retaining of said first firestopping sealing section within said first half bore means, and further including a second insertion retaining rim extending inwardly from said second interior surface into said second insertion opening means to facilitate retaining of said second firestopping sealing section within said second half bore means. 17. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough comprising: A. a first half section being generally half tubularly shaped to define a first half bore means extending longitudinally therealong, said first half section including: (1) a first exterior surface being generally arcuate and convex;(2) a first abutment edge extending longitudinally along said first exterior surface;(3) a first head end defining a first head opening means therewithin in fluid flow communication with said first half bore means;(4) a first insertion end defining a first insertion opening means therein in fluid flow communication with respect to said first half bore means and with respect to said first head opening means;(5) a first head flange section extending radially outwardly from said first exterior surface at said first head end thereof, said first head flange being adapted to limit the depth of penetration of said first half section into the wallboard aperture;(6) at least one first barb extending outwardly from said first exterior surface to facilitate engagement thereof with respect to the wallboard panel responsive to positioning of said first half section within the wallboard panel aperture;(7) a first engaging means positioned along said first abutment edge thereof for facilitating engagement therewith;B. a first firestopping sealing section of flexible resilient firestopping material positionable within said first half bore means of said first half section;C. a second half section being generally half tubularly shaped to define a second half bore means extending longitudinally therealong, said second half section and said first half section being attachable in abutment with respect to one another to position said first half bore means and said second half bore means adjacently together to define a central bore means extending axially and longitudinally through the firestopping bushing, said second half section including: (1) a second exterior surface being generally arcuate and convex;(2) a second abutment edge extending longitudinally along said second exterior surface;(3) a second head end defining a second head opening means therewithin in fluid flow communication with said second half bore means, said second head opening means and said first head opening means positioned adjacently to define together a main head opening means responsive to abutting engagement between said first half section and said second half section with said first abutment edge and said second abutment edge in mutual abutting engagement;(4) a second insertion end defining a second insertion opening means therein in fluid flow communication with respect to said second half bore means and with respect to said second head opening means, said second insertion opening means and said first insertion opening means positioned adjacently to define a main insertion opening means responsive to abutting engagement between said first half section and said second half section;(5) a second head flange section extending radially outwardly from said second exterior surface at said second head end thereof, said second head flange section being positioned adjacent said first head flange section to define a head flange responsive to abutting engagement between said first half section and said second half section, said second head flange being adapted to limit the depth of penetration of said second half section into the wallboard aperture;(6) at least one second barb extending outwardly from said second exterior surface to facilitate engagement thereof with respect to the wallboard panel responsive to positioning of said second half section within the wallboard panel aperture;(7) a second engaging means positioned along said second abutment edge, said first engaging means and said second engaging means being engagable with respect to one another to retain said first abutment edge of said first half section with respect to said second abutment edge of said second half section; andD. a second firestopping sealing section of flexible resilient firestopping material positionable within said second half bore means of said second half section and positionable in direct flexibly resilient abutment with said first firestopping sealing section responsive to attachment of said first half section to said second half section to define a sealing seam therebetween within said central bore means for receiving penetrating members positioned extending therethrough to facilitate firestopping sealing therearound. 18. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 17 wherein said first firestopping sealing section and said second firestopping sealing section are made of a flexibly resilient foam firestopping material. 19. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 18 wherein said first firestopping sealing section and said second firestopping sealing section are made of a flexibly resilient foam intumescent firestopping material. 20. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 18 wherein said first half section and said second half section are configured identically with respect to one another. 21. A firestopping bushing positionable within an aperture defined in a wallboard panel for firestopping around one or more penetrating members extending therethrough as defined in claim 18 wherein said first half section and said second half section each include at least one alignment pin and each define at least one alignment aperture being mutually registrable wherein each of said alignment pins extends into one of said alignment apertures responsive to engaging abutment of said first abutment edge and said second abutment edge for maintaining aligned relative positioning of said first half section and said second half section.