Title: Ball and socket joint and method of making the same

Abstract: A ball and socket joint of the type having a plastic ball portion which would interfere with the socket on assembly, has the ball portion molded to an arm concentric with the socket. In making the ball and socket joint, the arm is positioned in a mold and concentrically referenced to the socket. Then the plastic ball portion is molded on the arm using the inside of the socket as the outside spherical surface of the mold. Upon shrinkage of the molded plastic ball, a perfect bearing clearance is obtained, all of the socket inside surface is used as a bearing area and burrs from cuts on the socket to accommodate the interference fit are eliminated.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Duncan, Lane (Inglewood, CA, US)

Application Number: 558603
Filing Date: 1975-03-14
Publication_date: 1976-03-02
Assignee:
Primary Class(es): 403/267 264/242, 403/122, 403/131, 403/268, 403/269, 425/129.1
Other Classes:
US Patent Ref:

1900617	Mar, 1933	Ricardo	403/131.
2307874	Jan, 1943	Bilde	425/127.
3023038	Feb, 1962	White	403/130.
3202749	Aug, 1965	White	425/129.
3591669	Jul, 1971	Memory	264/242.
3785217	Jan, 1974	Peura	264/242.

Other Refs:
Primary Examiner: Schroeder, Werner H.
Assistant Examiner: Shedd, Wayne L.
Attorney: Sughrue, Rothwell, Mion, Zinn & Macpeak