US PATENT SUBCLASS 285 / 146.3
.~.~ Having ball between opposed sockets

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

144.1  DF  SERIAL,RELATIVELY MOVABLE PORTIONS {4}
146.1  DF  .~ Linked ball and socket portions {2}
146.3.~.~ Having ball between opposed sockets

DEFINITION

Classification: 285/146.3

Having ball between opposed sockets:

(under subclass 146.1) Subject matter comprising two articulated opposed concave sockets coacting with convex surfaces on a spheroidal intermediate member.