Pipe joints or couplings – With means blocking release of holding means
Patent
1995-10-03
1998-04-07
Melius, Terry Lee
Pipe joints or couplings
With means blocking release of holding means
285276, 285305, F16L 2708, F16L 3500
Patent
active
057355525
ABSTRACT:
A swivel coupler for releasably and fluid tightly connecting two parts together so that fluid can pass between the two parts and the two parts can rotate relative to one another, comprises a body having an outer surface which, at least in part, is right cylindrical and a collar mounted on the right cylindrical outer body surface for rotation relative thereto. The collar projects beyond one end of the body for connection to one of the two parts and the body is connectable to the other of the two parts. Rotary sealing elements are provided between the collar and the right cylindrical outer body surface. There is a first ball or roller bearing race in the right cylindrical outer body surface and at least one radially extending bearing assembly aperture in the collar for inserting ball or roller bearings into said race when the race and aperture are radially aligned. The collar is displaceable axially relative to the body to bring the ball or roller bearings into contact with a second ball or roller bearing race on the collar after the ball or roller bearings have been inserted into the first race and structure is provided for preventing the collar from returning to a position in which the aperture and first race are radially aligned.
REFERENCES:
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patent: 2253018 (1941-08-01), Cowles
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patent: 3142498 (1964-07-01), Press
patent: 3334860 (1967-08-01), Bolton et al.
patent: 3363919 (1968-01-01), Brazell, II
patent: 4749192 (1988-06-01), Howeth
patent: 4872710 (1989-10-01), Konecny
patent: 5110157 (1992-05-01), Chen
Longwall Roof Supports Limited
Melius Terry Lee
Shackelford Heather
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