Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1995-02-27
1996-12-03
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285308, 285323, F16L 3500
Patent
active
055801005
ABSTRACT:
A connecting joint for connection to a plastic tube comprising: a main body having proximal and distal ends with a flow passage and chamber between the ends in communication with each other. An engaging wall extends inwardly at the distal end defining a small diameter entry into the chamber, a support provided with a guard wall and resilient arms extending from the guard wall with projection walls on the terminal ends of the resilient arms having outwardly extending inclined surfaces and inwardly extending pawl walls is located in the chamber and a collar is secured in the chamber by the engaging walls. When the tube is inserted into the chamber, one of the guard wall, an annular friction ring or a seal located in the chamber engages the tube and as the tube is withdrawn the member engaging the tube moves the outwardly extending inclined surfaces into engagement with the collar thereby urging the pawls into engagement with the tube. A releasing component is include which releases the pawl walls from engagement with the tube.
REFERENCES:
patent: 3743326 (1973-07-01), Courtot et al.
patent: 4188051 (1980-02-01), Burge
patent: 4304426 (1981-12-01), Francis
patent: 4712813 (1987-12-01), Passerell
patent: 4747626 (1988-05-01), Hama et al.
Aoki Tsuyoshi
Fukaya Kazumi
Umezawa Katsushi
Arola Dave W.
Casella Anthony J.
Hespos Gerald E.
Usui Kokusai Sangyo Kaisha Ltd.
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