US PATENT SUBCLASS 16 / 312
.~.~ Including cam surface and follower

Current as of: June, 1999
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16 /   HD   MISCELLANEOUS HARDWARE

221  DF  HINGE {32}
309  DF  .~ Gravitating hinge having vertical axis {3}
312.~.~ Including cam surface and follower {4}
313  DF  .~.~.~> And rolling element {2}
316  DF  .~.~.~> On axially twisted or helically fluted element
317  DF  .~.~.~> Including means to hold hinged members against pivotal movement
318  DF  .~.~.~> Having aperture for slidably receiving pintle (e.g., camming knuckle)

DEFINITION

Classification: 16/312

Including cam surface and follower:

(under subclass 309) Hinge including a sloped or curved surface fixed with respect to one hinged member* and a follower associated with a second hinge member and engaging the sloped or curved surface, whereby relative swinging movement of the hinged members results in the lifting of one hinged member relative to the other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284, for a hinge which is biased in either direction by a resiliently biased cam surface.

303, for a hinge which is biased in one direction only by a resiliently biased cam surface.