US PATENT SUBCLASS 4 / 692
.~.~.~.~.~ Having at least a semi-spherical fulcrum

Current as of: June, 1999
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4 /   HD   BATHS, CLOSETS, SINKS, AND SPITTOONS

679  DF  DRAIN, OVERFLOW OR TRAP FOR A SINK OR BATH {3}
688  DF  .~ Drain valve {2}
689  DF  .~.~ Pop-up {1}
690  DF  .~.~.~ Contacted by rotating member {1}
691  DF  .~.~.~.~ Lever {1}
692.~.~.~.~.~ Having at least a semi-spherical fulcrum

DEFINITION

Classification: 4/692

Having at least a semi-spherical fulcrum:

(under subclass 691) Subject matter wherein the lever has at least a partially ball shaped structure at its pivot point to control the flow of fluid.