Joints and connections – Articulated members – Rotatable
Patent
1993-08-19
1996-01-16
Knight, Anthony
Joints and connections
Articulated members
Rotatable
403164, 403 78, 277 29, 277152, F16D 360, F16J 1532
Patent
active
054842204
ABSTRACT:
A self cleaning ball bearing swivel connector. The first swivel member is equipped with a seal engaging surface defined by a frusto-conical shoulder and a cylindrical neck. The end of the tubular body which contains the bearing assembly is adjacent to but spaced a distance from the shoulder and together with the shoulder and the neck defines a seal receiving space. A flanged seal is supported in the seal receiving space and the flange is adapted to serve as a one-way flap type valve, permitting debris inside the seal receiving space to be extruded by centrifugal force as the swivel connector rotates, yet preventing the entry of debris or surrounding liquids. The angled surface provided by the frusto-conical shoulder decreases the resistance to the centrifugal force propelling the debris out of the seal receiving space and, thus, facilitates the extrusion of debris.
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Prior art brochure published by Lewis Manufacturing Co., entitled "Quality Pulling Grips & Swivels".
Lewis Charles A.
Lewis Charles T.
Pogue Sidney E.
Pogue, III Thomas J.
Knight Anthony
Lee Mary M.
Lewis Manufacturing Company
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