US 5,295,760 AGranted

Testable bulkhead

OwnerJohn W. Roweinventor

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Abstract

A leak testable bulkhead around a pipe penetrating through a wall, comprising a cylindrical hollow insert for partial passage through a hole in the wall, and through which the pipe passes. The insert has a perpendicular abutment flange preventing complete passage through the hole. Also provided are two rubbery gaskets for sealing, placed on each side of the hole against the wall with the flange abutting one gasket, and a wide-lipped washer against the other gasket. A nut threadably engaged on the insert and placed against the washer secures the insert, gaskets and washer tightly in place. Also included are two flexible reducer boots, a smaller of which is sealingly affixed over an un-threaded end of the insert adjacent the nut and reduces downward and sealingly affixes around the pipe passing through the insert. A larger of the reducers sealingly affixes onto the washer, and reduces downward and sealingly affixes over the pipe slightly beyond the smaller reducer so as to encase the nut and smaller reducer. Connected air passages and chambers are defined in communication with the inner sides of each sealed area. An air input valve on the larger exposed reducer boot allows pressurizing of the passages and chambers so that the ability of the sealed points to retain air pressure may be tested and monitored with a pressure gage.

Claims3

Dependent claims

A sealing testable bulkhead for prevention of leakage around an elongated member penetrating a wall, comprising;

an insert means for placement into a hole in a wall, said insert means having a opening therethrough for passage of an elongated member through said insert means and the wall, said insert means having a flange means for preventing the complete passage of said insert means through the hole in the wall and for abutting against
a first sealing gasket sized for placement over said insert means between said flange means and the wall for sealing between said flange means and the wall,
a second sealing gasket sized for placement over said insert means and sealingly against the wall on the opposite side of the wall from said first sealing gasket,
a washer means sized for placement over said insert means and sealed abutment against said second sealing gasket,
securing means engagable between said insert means said washer means for applying pressure to said washer means so as to push said washer means toward the wall and to draw said flange means toward said washer means and thereby apply pressure to said first and second sealing gaskets to aid in defining fluid tight seals,
a first reducer means;
said first reducer means being a hollow member having a first and a second open end oppositely disposed from one another, said first open end sized for placement over and sealed affixment to an elongated member passing through said insert means, said second open end sized for placement over and sealed affixment to said insert means adjacent said securing means;
a second reducer means larger than said first reducer means;
said second reducer means being a hollow member having a first and a second open end oppositely disposed from one another with said first open end sized for placement over and sealed affixment to an elongated member passing through said insert means, said second open end sized for placement over and sealed affixment to said washer means so as to encase said first reducer means,
valve means affixed to and through an exterior wall of said second reducer means for in-putting pressurized air into an interior chamber defined at least in part by said second reducer means,
air conducting means for communicating air within said main chamber to each sealed area so as to allow testing for leaks in the sealing testable bulkhead.

8 more elements

A sealing testable bulkhead for prevention of leakage around an elongated member penetrating a wall, comprising;

an insert for placement into a hole in the wall, said insert comprising a barrel having a bore with a first and a second open end sized to allow for passage of an elongated member through said insert,
said insert adjacent said first open end having an flange extending perpendicular outward beyond said barrel,
an exterior portion of said barrel adjacent said second open end being un-threaded, an exterior portion of said barrel between said un-threaded portion and said flange having threads,
a first sealing gasket sized for placement over said barrel and against said flange, said first sealing gasket when in use being between said flange and a first side of the wall with said barrel positioned within the hole in the wall,
a second sealing gasket sized for placement over said barrel, said second sealing gasket when in use being against a second side of the wall opposite the first said of the wall,
a wide-lipped washer sized for placement over said barrel and abutment with a first side of said washer against said second sealing gasket on an opposite side of said second sealing gasket from the wall,
a nut sized for placement over said barrel and abutment against a second side of said washer, said nut having threads engagable with said threads on said barrel so as to allow for compressing both of the gaskets for sealing purposes,
a resilient first reducer;
said first reducer being a hollow member having two open ends oppositely disposed from one another, a first of said open ends being substantially smaller than a second and larger of said open ends, the smaller open end sized for placement over and sealed affixment to an elongated member passing through said insert, the larger of said open ends sized for placement over and sealed affixment to the exterior un-threaded portion of said barrel,
a resilient second reducer larger than said first reducer;
said second reducer being a hollow member having two open ends oppositely disposed from one another, a first of said open ends being substantially smaller than a second and larger of said open ends, the smaller open end sized for placement over and sealed affixment to an elongated member passing through said insert, the larger of said open ends sized for placement over and sealed affixment to the wide-lipped portion of said washer so as to encase said first reducer,
an input valve affixed to and through an exterior wall of said second reducer for in-putting pressurized air into an interior chamber defined at least in part by said second reducer,
air conducting means for communicating air within said main chamber to each sealed area so as to allow testing for leaks in the sealing testable bulkhead.

10 more elements

A sealing testable bulkhead for prevention of leakage around an elongated member penetrating a wall, comprising;

a male insert for placement into a hole in the wall, said insert comprising a cylindrical barrel having a central bore with a first and a second open end sized to allow for passage of an elongated member through said insert,
said insert adjacent said first open end having an flange extending perpendicular outward beyond said barrel,
an exterior portion of said barrel adjacent said second open end being un-threaded, an exterior portion of said barrel between said un-threaded portion and said flange having threads,
a first sealing gasket sized for placement over said barrel and against said flange, said first sealing gasket when in use being between said flange and a first side of the wall with said barrel positioned within the hole in the wall,
a second sealing gasket sized for placement over said barrel, said second sealing gasket when in use being against a second side of the wall opposite the first said of the wall,
a wide-lipped washer sized for placement over said barrel and abutment with a first side of said washer against said second sealing gasket on an opposite side of said second sealing gasket from the wall,
a nut sized for placement over said barrel and abutment against a second side of said washer, said nut having threads engagable with said threads on said barrel so as to allow for compressing both of the gaskets for sealing purposes,
a resilient first reducer;
said first reducer being a hollow cylinder having two open ends oppositely disposed from one another, a first of said open ends being substantially smaller than a second and larger of said open ends, the smaller open end sized for placement over and sealed affixment to an elongated member passing through said insert, the larger of said open ends sized for placement over and sealed affixment to the exterior un-threaded portion of said barrel,
a resilient second reducer larger than said first reducer;
said second reducer being a hollow cylinder having two open ends oppositely disposed from one another, a first of said open ends being substantially smaller than a second and larger of said open ends, the smaller open end sized for placement over and sealed affixment to an elongated member passing through said insert, the larger of said open ends sized for placement over and sealed affixment to the wide-lipped portion of said washer so as to encase said first reducer,
an input valve affixed to and through an exterior wall of said second reducer for in-putting pressurized air into an interior chamber defined at least in part by said second reducer,
air conducting means for communicating air within said main chamber to each sealed area so as to allow testing for leaks in the sealing testable bulkhead.

10 more elements

Dependencies are inferred from the claim text.