Pipe joints or couplings – With assembly means or feature – Spaced plates
Patent
1983-09-02
1985-02-12
Callaghan, Thomas F.
Pipe joints or couplings
With assembly means or feature
Spaced plates
285158, 285161, F16L 3900
Patent
active
044986920
ABSTRACT:
A reusable penetration seal for sealing a hole in a wall through which a conduit passes, without the need for the use of gaskets or gasketing or sealing materials. The penetration seal comprises a hollow penetration sleeve having a head at one end with an inwardly directed circular knife edge for sealing against the wall, and having a threaded shank; a compression nut for securing the penetration sleeve to the wall and for forcing the knife edge firmly against the wall to form a bite seal therebetween; a ferrule for sealing the conduit which passes through the hollow penetration sleeve; and a seal nut for being threaded to the end of the shank of the penetration seal to compress and seal the ferrule, conduit and penetration sleeve together in a compression seal. If the penetration seal is used to seal a conduit hole in a double wall construction having inner and outer walls, a compression sleeve may be provided to transfer loading from the compression nut to the wall against which the head of the penetration sleeve bears, to help prevent distortions of said wall which might otherwise tend to interfere with said bite seal.
REFERENCES:
patent: 1507647 (1924-09-01), Williams
patent: 2118672 (1938-05-01), Green
patent: 2464332 (1949-03-01), Maund et al.
patent: 2508655 (1950-05-01), Silverman
patent: 4250348 (1981-02-01), Kitagawa
Callaghan Thomas F.
Moravan Gregory W.
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