Separation preventive pipe joint

Details Separation preventive pipe joint Separation preventive pipe joint

1985-08-30

1987-03-03

Husar, Cornelius J.

Pipe joints or couplings

Essential catch

Resilient ring

285374, 285400, 285340, 285403, 285368, F16L 2102

Patent

active

046470832

ABSTRACT:
A separation preventive pipe joint comprises a socket and a spigot inserted into the socket with an annular packing interposed therebetween. An annular gland connected to the socket has an axial packing presser projection and is internally provided wtih an annular receptacle groove. Arcuate engaging segments are incliningly disposed in a circular arrangement within the receptacle groove and retained there by elastic distancing members. The engaging segments are radially inwardly pressed by pressing bolts to engage in the spigot outer periphery. Each engaging the segment elastically deforms in a manner of a Belleville spring in response toseparating movement of the spigot to assume a posture generally perpendicular to the spigot outer periphery so that the engaging element engages in the spigot outer periphery more firmly.

REFERENCES:
patent: 1146670 (1915-07-01), Tippett
patent: 3423111 (1969-01-01), Elsner
patent: 3937500 (1976-02-01), Sato
patent: 3941410 (1976-03-01), Miyaoka
patent: 4070046 (1978-01-01), Felker et al.
patent: 4092036 (1978-05-01), Sato et al.
patent: 4417754 (1983-11-01), Yamaji et al.
patent: 4438954 (1984-03-01), Hattori
patent: 4544188 (1985-10-01), Dugger
patent: 4568112 (1986-02-01), Bradley, Jr. et al.

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