Pipe joints or couplings – Packed – Wedge
Patent
1984-12-24
1986-08-05
Arola, Dave W.
Pipe joints or couplings
Packed
Wedge
285369, 285910, F16L 1702
Patent
active
046038930
ABSTRACT:
A pipe coupling joint including a pair of rubber packings, with one each being installed onto the outer circumferential surface of one of two pipe segments at the area near the leading end thereof set in alignment and closely opposed relationship with each other, a middle ring of cylindrical shape disposed closely in the middle position between the pair of rubber packings, and a pair of clamp rings. The two pipe segments are joined with each other by having the pair of rubber packings secured and urged in an operative position of engagement between the clamping face of the middle ring and the pair of clamp rings, wherein each of the rubber packings is defined with the top corner at the outer circumference thereof cut away at an oblique angle with respect to its mating surface with the middle ring, and wherein there is formed a step formation which rises at a substantial angle with respect to the inclined clamping face of the middle ring.
REFERENCES:
patent: 1601559 (1926-09-01), Clark
patent: 2021745 (1935-11-01), Pfefferle et al.
patent: 2786697 (1957-03-01), Rescheneder
patent: 3135520 (1964-06-01), Borah
patent: 3865410 (1975-02-01), Chen
patent: 4030741 (1977-06-01), Fidrych
patent: 4293138 (1981-10-01), Swantee
patent: 4294475 (1981-10-01), Kanai et al.
Arola Dave W.
Mitsubishi Jukogyo Kabushiki Kaisha
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