Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1978-07-14
1980-12-23
Callaghan, Thomas F.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285238, 285322, F16L 2102
Patent
active
042406510
ABSTRACT:
A device for coupling semi-rigid plastic tubes of a known type in which two ring members are provided, one within the other. The outer ring member is secured in a bore in a part to which the tube is connected. The outer ring member has a plurality of teeth which engage a tube inserted into the ring members. The inner ring member is movable axially to disengage the teeth for uncoupling the tube and part. The device is improved in one aspect by providing two distinct sealing means, each movable with the inner ring member. A first sealing means comprises a projection on the inner surface of the inner ring member which projection penetrates the wall of a tube to be connected. A second sealing means comprises a sealing member, such as an O-ring, mounted on the inner ring member. In another aspect, the teeth are shaped such that they are easily disengageable, without permanent distortion, so that the device is re-usable.
REFERENCES:
patent: 2787480 (1957-04-01), Staller
patent: 2967067 (1961-01-01), Singer
patent: 3976314 (1976-08-01), Graham
patent: 4021062 (1977-05-01), Mariaulle
patent: 4123090 (1978-10-01), Kotsakis et al.
Automatisation-Sogemo
Callaghan Thomas F.
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