Pipe joints or couplings – With fluid pressure seal – Flexible lip
Patent
1994-08-30
1996-03-05
Arola, Dave W.
Pipe joints or couplings
With fluid pressure seal
Flexible lip
285340, 285342, 285348, 285354, 285910, F16L 17035
Patent
active
054960762
ABSTRACT:
A fast tube connector structure including a tube connector, a rubber fastening washer, a guiding sleeve, a conic spring washer and a sleeve-like nut, wherein a tube is inserted through the nut into a space defined by the spring washer, guiding sleeve and fastening washer and located on a tube seat of the tube connector. The nut is then secured onto the tube connector, forcing the spring washer to move downward and causing a narrow end thereof to move downward along an inclined guiding flange. The claw portion is thus compresses by the guiding flange to tightly clamp and fasten the tube and firmly fictionally associate the tube with the tube connector. The claw portion also exerts a downward pushing force on the guiding sleeve, urging the guiding sleeve to compress and deform the fastening washer located on a washer seat of the tube connector and surrounded by the guiding sleeve so that an outer sealing rim of the fastening washer tightly abuts the washer seat of the tube connector and an inner sealing rim is tightly plugged into an adjoining clearance between the tube and the washer seat so as to enhance the engagement between the tube and the tube connector to achieve a reliable leakproof effect.
REFERENCES:
patent: 2394351 (1946-02-01), Murzburger
patent: 3140107 (1964-07-01), Hynes
patent: 3219751 (1965-11-01), Pfendler et al.
patent: 3434744 (1969-03-01), Yoke et al.
patent: 3633944 (1972-01-01), Hamburg
patent: 4082326 (1978-04-01), Bryson
patent: 4146254 (1979-03-01), Turner et al.
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