US PATENT SUBCLASS 324 / 418
.~ Relay

Current as of: June, 1999
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324 /   HD   ELECTRICITY: MEASURING AND TESTING

415  DF  ELECTROMECHANICAL SWITCHING DEVICE {4}
418.~ Relay {5}
419  DF  .~.~> Reed switch
420  DF  .~.~> To evaluate contact chatter
421  DF  .~.~> To evaluate contact resistance
422  DF  .~.~> To evaluate contact sequence of operation
423  DF  .~.~> To evaluate contact response time

DEFINITION

Classification: 324/418

Relay:

(under subclass 415) Subject matter wherein the device under test consists of a switch contact member actuated by an electromagnet acting against a spring biased member to open or close switch contact surfaces.