US PATENT SUBCLASS 335 / 218
.~.~ With time-delay means


Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

209  DF  MAGNETS AND ELECTROMAGNETS {10}
217  DF  .~ Temperature-responsive type (e.g., temp. compensation means) {1}
218.~.~ With time-delay means


DEFINITION

Classification: 335/218

(under subclass 217) Subject matter including means to produce a predetermined time interval between the energizing instant and the time of operation of the magnet or electromagnet.

(1) Note. The time interval may be determined by a thermal element, a dashpot or any other time delay device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28+, for automatic reclosing or resetting switches with time delay means, especially subclass 31 for thermally actuated delay means.

39+, for switches with magnetic latch means with time delay means.

59+, for retarded or delayed switches in general, particularly subclass 66 for electrothermal delay means.

239+, for nontemperature responsive magnets or electromagnets with time delay means.