US PATENT SUBCLASS 335 / 156
.~ With protective means for switch or contacts


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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
156.~ With protective means for switch or contacts


DEFINITION

Classification: 335/156

(under subclass 2) Subject matter wherein the structure includes at least one means whereby the device is protected from physical or electrical damage; such as, burnout, contact burning or pitting, physical breakage or damage due to jar, overheating, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

157+, for switches with locking or holding structure to prevent or inhibit unwanted operation of the contacts from a first condition to a second condition.

193, for significant contact activating means with means for preventing vibration bounce or chatter.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

166+, for nonmagnetic switches with protective means. 307, Electrical Transmission or Interconnection Systems,

134+, for electrical switching systems with operation facilitating or self-protective features.