Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1984-05-25
1986-12-16
Marcus, Stephen
Pipes and tubular conduits
With closures and plugs
Inflation stem type
285 4, 285105, F16L 4700
Patent
active
046289658
ABSTRACT:
An improved stab-type coupling of the type used for connecting an end portion of a smooth wall non-metallic pipe or tube to fittings or other pipes or tubes wherein the coupling body has a first end area including an internal recess adapted to receive the end portion of a smooth walled non-metallic pipe. An elongated hollow insert is disposed within the recess for receiving the pipe end portion axially thereover. At least a pipe gripping member is disposed within the recess in a radially spaced surrounding relationship with a portion of the insert to retainingly engage the pipe end portion as it is inserted axially therepast. The improvement comprises a closing structure associated with the body first end area for closing the recess and thereby protect the coupling interior. The closing structure accommodates selective removal of a portion thereof from the body to expose the recess prior to receipt of a pipe end portion thereinto. The accommodating portion may comprise any convenient arrangement such as a frangible zone, a designated cutting area and the like. The closing structure may be comprised of a separate, removable end cap.
REFERENCES:
patent: 986905 (1911-03-01), Carlson
patent: 1891826 (1932-12-01), McGinnis
patent: 2082144 (1937-06-01), Bowers
patent: 3794098 (1974-02-01), Versen
patent: 3913207 (1975-10-01), Frey
patent: 4022205 (1977-05-01), Tenczar
patent: 4205707 (1980-06-01), Lundgren
patent: 4229025 (1980-10-01), Volgstadt et al.
patent: 4269232 (1981-05-01), Witschi
patent: 4335756 (1982-06-01), Sharp et al.
Marcus Stephen
Perfection Corporation
Thronson Mark
LandOfFree
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