Tube couplings

Details Tube couplings Tube couplings

1995-02-14

1995-11-21

Arola, Dave W.

Pipe joints or couplings

Essential catch

Leaf spring

285322, 285906, F16L 3900

Patent

active

054680271

ABSTRACT:
A tube coupling comprising a coupling body having a throughway open at one end to receive an end part of a tube, sealing elements in the throughway to form a sealing engagement with the end part of the tube located in the throughway, a locking device in the form of a collet engageable with an annular bead on the tube adjacent to the end part of the tube to hold the end part of the tube in the coupling body in engagement with the sealing elements and a projection or projections to provide a resistance to entry of the tube into the throughway prior to engagement of the collet with the tube bead so that a force applied to the tube to overcome the resistance also overcomes any resistance offered by the locking device to ensure that the tube bead is engaged with the locking device.

REFERENCES:
patent: 4005883 (1977-02-01), Guest
patent: 4013310 (1977-03-01), Dye
patent: 4178023 (1979-12-01), Guest
patent: 4573716 (1986-03-01), Guest
patent: 4943091 (1990-07-01), Bartholomew
patent: 5067754 (1991-11-01), Bartholomew
patent: 5161833 (1992-11-01), McNaughton et al.
patent: 5370423 (1994-12-01), Guest

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