US PATENT SUBCLASS 74 / 469
CONTROL LEVER AND LINKAGE SYSTEMS

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

469CONTROL LEVER AND LINKAGE SYSTEMS {8}
470  DF  .~> Resilient connections
471 R  DF  .~> Multiple controlled elements {3}
479.01  DF  .~> Multiple controlling elements for single controlled element {8}
491  DF  .~> Hand operated {4}
512  DF  .~> Foot operated {2}
515 R  DF  .~> Knee operated {1}
516  DF  .~> Variable output force {2}
*  DD  .~> Elements {8}

DEFINITION

Classification: 74/469

(under the class definition) Mechanisms which are made up of (1) such links as cranks, levers and rods, with turning and sliding pairs, and (2) links consisting of bodies which have two or more rigid elements, which links may be connected to other bodies for the purpose of transmitting force or motion, not otherwise classified.

(1) Note. By pairs is meant two rigid bodies movably connected together so that the relative motion between them is of a definite character.

(2) Note. Such linkages are normally manually operated and used for controlling some device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

20, through 169, for mechanical movements.

SEE OR SEARCH CLASS

901, Robots, subcollections 27+ for lever and linkage systems which make up a robot arm.