Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means
Patent
1976-03-18
1977-07-12
Lawson, Patrick D.
Pipe joints or couplings
With fluid pressure seal
With separate, encased pipe-gripping means
285261, F16L 2704
Patent
active
040350045
ABSTRACT:
A hollow body has ball and socket connections at its opposite ends, respectively. Each ball has a bore therethrough with its inner end disposed in the body cavity. A flexible imperforate tube is connected at its opposite ends to the balls, respectively, in a manner such that liquids can pass, under positive or negative pressure, through the body cavity and balls without contact with the interior wall of the body cavity and the outer companion surfaces of the balls and their sockets. The tube is curvilinear endwise and the length thereof exposed in the cavity is greater than the distance between the inner ends of the bore of the balls so that it can self-adjust to different rocked positions of the balls relative to each other without substantial change in the cross section of its passage. The balls can be locked individually in various rocked positions.
REFERENCES:
patent: 2564938 (1951-08-01), Warren
patent: 2890067 (1959-06-01), Morin
patent: 3475039 (1969-10-01), Ortloff
Lawson Patrick D.
Leonard John Harrow
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