US PATENT SUBCLASS 74 / 483 R
.~.~ Interlocked

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

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
479.01  DF  .~ Multiple controlling elements for single controlled element {8}
483 R.~.~ Interlocked {2}
483 PB  DF  .~.~.~> Push button
483 K  DF  .~.~.~> Rod blocks actuation of rotary member

Unofficial Alpha Subclasses: R PB K

DEFINITION

Classification: 74/483

(under subclass 479) Systems located between and cooperating with elements of a plurality of control lever and linkage systems which prevent the simultaneous operation of the control systems, and permit the operation of only one control system at a time.

SEE OR SEARCH THIS CLASS, SUBCLASS:

473.24+, for interlocked multiple controlled elements.

SEE OR SEARCH CLASS

246, Railway Switches and Signals,

131+, for interlocking switches and signals.