Pipe joints or couplings – Packed – Sleeve
Patent
1976-01-12
1977-08-30
Arola, Dave W.
Pipe joints or couplings
Packed
Sleeve
285156, 285179, 285373, F16L 1700
Patent
active
040450600
ABSTRACT:
A pipe retainer joint particularly for use in connecting lengths of plastic pipe to each other or for connecting plastic pipe to the branches of valves and pipe fittings.
The pipe retainer joint in one form of the invention has a central member in which the abutting ends of pipe are sealed by means of O-rings, and a pair of split end members, joined to the central member by cast lugs, hold the pipe against withdrawal from the central member when clamped about the pipes. In a modified form of the invention, the central member and the split end members are separate from each other with the central member having external annular grooves at each end thereof, and the end members have a split annular collar which are aligned with the annular grooves in the central member and seat in the annular grooves when the split end members are clamped about the pipes. In a still further modification, the pipe is joined to the branch of valves or pipe fittings where the pipe is fitted into the branch and is sealed therein by an O-ring, and a pipe retaining member, including a split annular collar, is clamped about the pipe and the annular collar is seated in an external groove in the branch of the valve or pipe fitting.
REFERENCES:
patent: 1789379 (1931-01-01), Dillon
patent: 2531401 (1950-11-01), Clerke
patent: 3645563 (1972-02-01), Rochelle
patent: 3727951 (1973-04-01), Shire
patent: 3754781 (1973-08-01), Conroy
Arola Dave W.
Daigle Aqua Inc.
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