Tube couplings

Details Tube couplings Tube couplings

1996-09-20

1998-04-14

Nicholson, Eric K.

Pipe joints or couplings

Movable jaw

285323, F16L 3500, F16L 2106

Patent

active

057383871

ABSTRACT:
A tube coupling comprising a coupling body having a throughway open at one end to receive a tube extending into the throughway. A collet is located in the open end of the throughway for holding the tube in the throughway comprising an annular head located outside the throughway and having a plurality of arms extending into the throughway and terminating in enlarged heads. The inner side of the throughway and the outer side of the tube have parallel tapered cam surfaces which reduce towards the open end of the throughway and the collet heads have inner and outer faces which are parallel to one another and to the tapered cam surfaces and engage therewith such that the heads are subjected solely to compression in resisting withdrawal of the tube from the throughway.

REFERENCES:
patent: 3895832 (1975-07-01), Ellis et al.
patent: 3909046 (1975-09-01), Courtot et al.
patent: 4637636 (1987-01-01), Guest
patent: 4666190 (1987-05-01), Yamabe et al.
patent: 5042848 (1991-08-01), Shiozaki
patent: 5284369 (1994-02-01), Kitamura

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