Pipe joints or couplings – Swivel
Patent
1996-01-26
1998-07-07
Nicholson, Eric K.
Pipe joints or couplings
Swivel
285276, 285331, 285319, 15 17, F16L 2708, E04H 320
Patent
active
057757410
ABSTRACT:
The swivel assembly of the present invention employs a thrust bearing configuration that provides smooth operation under non-axial and axial load conditions. The assembly comprises two opposing bearing surfaces, one on the end of a hose pipe and the other on a bearing race. A cylindrical housing interlocks with the bearing race and includes a flange to keep the bearing surface of the hose pipe in contact with the bearings. Thus, the hose pipe may rotate freely relative to the bearing race and housing. Because only the end of the hose pipe is in contact with the housing or bearings, non-axial bending loads centered in the bearing are resolved through relatively short moment arms thereby reducing friction creating by the non-axial loading condition. A sealing and lubricating thrust washer may be introduced between the flange in the housing and the hose pipe to seal the swivel assembly and to reduce further the friction between the hose pipe and the housing flange and bearing race.
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Barton Graham M.
Rice Chris A.
Baracuda International Corporation
Nicholson Eric K.
Russell Dean W.
Weatherly Mitchell G.
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