US PATENT SUBCLASS 285 / 261
BALL AND SOCKET

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

261BALL AND SOCKET {8}
262  DF  .~> With internal tie means
263  DF  .~> Radially spaced spherical surfaces
264  DF  .~> Oscillative {1}
266  DF  .~> Composite ball
267  DF  .~> Spring-biased packing
268  DF  .~> Spring-biased ball {1}
270  DF  .~> With separate packing actuator
271  DF  .~> With removable ball seat

DEFINITION

Classification: 285/261

(under the class definition) Devices which comprise pipe and socket members having mating spherical or curved surfaces therebetween, said pipe constituting a ball or equivalent, to permit relative free movement between the parts or angular

adjustment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51, for an insulated ball and socket joint.

121.7, for ball and socket joints in concentric pipe systems.

138.1, for a ball and socket joint in a pipe or rod to pipe-to-plate system.

146.1+, for a plural serial ball and socket system.