Pipe joints or couplings – Flexible joint – rigid members – Resilient sleeve type
Patent
1994-04-05
1994-12-06
Arola, Dave W.
Pipe joints or couplings
Flexible joint, rigid members
Resilient sleeve type
285284, 285328, 285423, 285915, F16L 2108
Patent
active
053704266
ABSTRACT:
A flexible pipe connector is disclosed for connecting to a hard plastic pipe. The flexible pipe connector, preferably made of polyethylene, has a tubing member which defines a cylindrical wall with inner and outer surfaces, the cylindrical wall having a male end which has a plurality of undercuts formed on the outer surface. The male end with the undercuts is inserted into the female end of a hard plastic pipe with a melting agent applied at the inner surface thereof. The melting agent melts the inner surface of the pipe's female end to form a liquified layer of hard plastic which is received in the male end's undercuts and then hardens into a reconfigured solid layer. In this manner, the flexible pipe connector, which is inert and normally cannot be attached with glue to a hard plastic pipe, can be sealably secured to a hard plastic pipe as the liquified layer solidifies within the undercuts to prevent separation of the pipe connector and the hard plastic pipe and to provide a seal therebetween.
REFERENCES:
patent: 2825587 (1958-03-01), Barta et al.
patent: 2876154 (1959-03-01), Usab
patent: 4013309 (1977-03-01), Quick
patent: 4256333 (1981-03-01), Jones
patent: 4511163 (1985-04-01), Harris
Arola Dave W.
Tuf-Tite, Inc.
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