US PATENT SUBCLASS 81 / 474
.~.~.~ Having intermediate, disparate, interlock element


Current as of: June, 1999
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81 /   HD   TOOLS

52  DF  WRENCH, SCREWDRIVER, OR DRIVER THEREFOR {27}
467  DF  .~ Responsive to torque on work {7}
473  DF  .~.~ Rotatable, coaxial, clutching components {3}
474.~.~.~ Having intermediate, disparate, interlock element


DEFINITION

Classification: 81/474

Having intermediate, disparate, interlock element:

(under subclass 473) Wrench or screwdriver including an element (e.g., ball), structurally distinct from and located between the coacting surfaces of the components, which orbits about the same axis of rotation as the components and locks them together when the torque on the work is below the selected value.