# US 5,345,813 A · Pressure testable flexible piping penetration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,345,813 A - Document ID: US5345813A - Status: Granted - Kind: A - Application number: 08/167,630 - Filed: 1993-12-14 - Granted: 1994-09-13 - Earliest claimed: 1993-03-19 - Assignees: Buffalo Environmental Products Corporation - Inventors: Dean Flessas - Web page: https://patentgrep.com/patent/US5345813A ## CPC - G01M 3/2869: {for seals not incorporated in a pipe joint} - F16L 5/02: Sealing - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## Abstract A pressure testable flexible entry boot that provides sealed piping penetration through a container wall including a first elastomeric boot which cooperates with a second elastomeric boot to form a sealed air pocket, which may be pressurized by introducing air through a port extending through one of the elastomeric boots to detect leaks. ## Claims ### Claim 1 A pressure testable flexible piping penetration fitting comprising: a first elastomeric boot having a flange portion adapted to engage a first side of a containment wall and a body portion adapted to extend through an opening in said containment wall, said body portion further adapted to engage the outer diameter of a pipe extending through said opening; a second elastomeric boot adapted to overlap said body portion of first elastomeric boot and engage a second side of said containment wall opposite said first side to form an air pocket on said second side of said containment wall between said first and second elastomeric boots; a test port extending through said second elastomeric boot for pressurizing and monitoring said air pocket. ### Claim 2 A pressure testable flexible piping penetration fitting comprising: a first elastomeric boot having a first flange portion adapted to engage a first side of a containment wall, said first elastomeric boot having a body portion adapted to extend through an opening in said containment wall and sealingly engage the outer diameter of a pipe extending through said containment wall; a second elastomeric boot having a second flange portion adapted to engage the opposite side of said containment wall and having a body portion adapted to overlap said body portion of said first elastomeric boot and sealingly engage said pipe to form an air pocket area; a test port extending through said second elastomeric boot for pressurizing and monitoring air pressure in said air pocket area; sandwich means for sandwiching said containment wall between said first elastomeric boot and said second elastomeric boot. ### Claim 3 (depends on 2) The pressure testable flexible piping penetration fitting of claim 2 wherein said test port includes means for attachment to an air pressure source and means for sealing said test port. ### Claim 4 (depends on 2) The pressure testable flexible piping penetration fitting of claim 2 wherein said sandwich means includes threadably engageable studs extending from said first elastomeric boot through said second elastomeric boot and held thereto by a plurality of nuts. ### Claim 5 (depends on 2) The pressure testable flexible piping penetration fitting of claim 2 wherein said first flange portion includes an encapsulated reinforcing ring. ### Claim 6 A pressure testable flexible piping penetration fitting comprising: a first elastomeric boot having a first flange portion adapted to engage a first side of a containment wall defining a seal area, said first elastomeric boot having a body portion adapted to extend through an opening in said containment wall and engage the outer diameter of a pipe extending through said containment wall defining a seal area; a second elastomeric boot having a second flange portion adapted to engage the opposite side of said containment wall defining a seal area, said second elastomeric boot having a body portion adapted to overlap said body portion of said first elastomeric boot forming an air pocket area; a test port extending through said second elastomeric boot for pressurizing and monitoring air pressure in said air pocket area when said first and second elastomeric boots are assembled such that each of said seal areas may be tested and adjusted from one side of said containment wall. ### Claim 7 (depends on 6) The pressure testable flexible piping penetration fitting of claim 6 wherein said test port includes means for attachment to an air pressure source and means for sealing said test port. ### Claim 8 (depends on 6) The pressure testable flexible piping penetration fitting of claim 6 wherein said first flange portion includes a reinforcing ring. ### Claim 9 A pressure testable flexible piping penetration fitting comprising: a bulkhead having a flange portion for sealingly engaging one side of a containment wall and a body portion adapted to extend through an opening in said containment wall; lock means for securing said bulkhead to said containment wall; a first elastomeric boot adapted to overlap and sealingly engage said body portion of said bulkhead defining a seal area, said first elastomeric boot also adapted to sealingly engage an outer diameter of a pipe extending through said bulkhead and said opening in said containment wall defining a seal area; a second elastomeric boot adapted to overlap both said body portion of said bulkhead and said first elastomeric boot to form an air pocket area such that one portion of said second elastomeric boot sealingly engages said outer diameter of said pipe defining a seal area and overlaps and sealingly engages said lock means defining a seal area, said first elastomeric boot and said second elastomeric boot cooperating to form an air pocket such that each of said seal areas may be tested and adjusted from one side of said containment wall; a test port extending through said second elastomeric boot for pressuring and monitoring the pressure in said air pocket area. ### Claim 10 (depends on 9) The pressure testable flexible piping penetration fitting of claim 9 wherein said lock means includes a nut adapted to engage a threaded portion of said body portion of said bulkhead. ### Claim 11 (depends on 9) The pressure testable flexible piping penetration fitting of claim 9 wherein said first elastomeric boot includes a groove on said body portion adapted to receive a clamp for sealing said body portion to said outer diameter of said pipe. ### Claim 12 (depends on 9) The pressure testable flexible piping penetration fitting of claim 9 wherein said second elastomeric boot includes a first groove on one end for receiving a clamp for sealing said second boot to said lock means and a second groove on the other end for receiving a clamp to seal said second boot to said pipe.