Pipe joints or couplings – Essential catch – With manipulator
Patent
1991-05-22
1993-03-16
Trettel, Michael F.
Pipe joints or couplings
Essential catch
With manipulator
285315, F16L 3700
Patent
active
051938561
ABSTRACT:
A pipe connector comprises a pipe connector body, said pipe connector body including: a first portion of a diametrically larger inner cross section adjacent a mouth of said connector and a second portion of a diametrically smaller inner cross section extending inwardly from said first portion; an O-ring inserted in said second portion for establishing airtight seal between said second portion and the leading end of an inserted pipe; a spring receiver and a stop ring secured in said first portion; a circular groove formed between said spring receiver and a stop ring in said first portion; an annular plate spring having a plurality of inwardly extending resilient pawls that may engage with the groove formed on the outer surface of the pipe inserted, for preventing the inserted pipe from slipping off the connector; and a push member slidably inserted in said stop ring, said push member having a rear end extending from the mouth of the pipe connector body, and a leading end which, when pushed in for disconnection of the pipe, may bend and spread said resilient pawls.
REFERENCES:
patent: 4123090 (1978-10-01), Kotsakis et al.
patent: 4288113 (1981-09-01), Saulnier
patent: 4630848 (1986-12-01), Twist et al.
patent: 4676530 (1987-06-01), Nordgren et al.
patent: 4747626 (1988-05-01), Hama et al.
patent: 4804213 (1989-02-01), Guest
patent: 4895395 (1990-01-01), Ceriani
patent: 4919457 (1990-04-01), Moretti
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