Tube couplings

Details Tube couplings Tube couplings

1998-12-10

2000-07-11

Shaver, Kevin

Valves and valve actuation

With correlated flow path

Flow path joint interlocked with valve or actuator

251148, 285323, F16L 5100, F16L 2106

Patent

active

060860448

ABSTRACT:
A tube coupling including a coupling body with a throughway having an open end to receive a tube. The diameter of the throughway increases towards the open end at a first location to form a first enlarged diameter portion to receive a tube. The diameter of the throughway also increases at a second location to form a further enlarged diameter portion to receive a tube locking device which holds the tube in the coupling body. A relatively hard plastics sleeve includes an end portion which is force-fit in the tube, and another end portion which includes an integral collar formed from a relatively soft plastics material including an annular sealing abutment. The annular sealing abutment sealingly engages in the throughway of the coupling body beyond the first location to prevent ingress of fluids between the sleeve and the throughway.

REFERENCES:
patent: 3666297 (1972-05-01), Marks
patent: 4606783 (1986-08-01), Guest
patent: 5197711 (1993-03-01), Geiger et al.
patent: 5390969 (1995-02-01), Guest
patent: 5775742 (1998-07-01), Guest

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