US PATENT SUBCLASS 337 / 98
.~.~ With contact operation inhibiting means (e.g., meltable or magnetic)

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
36  DF  .~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10}
98.~.~ With contact operation inhibiting means (e.g., meltable or magnetic)

DEFINITION

Classification: 337/98

(under subclass 36) Subject matter including significant details of positive locking or holding means whereby the main contacts are inhibited or restrained from movement by external sources or influence; for instance shock, or accidental motion. The locking devices to be found here generally comprise either mechanical or magnetic devices which may be either manually or automatically operated independent of any latching means which may be present in the device.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

6+, for pivoted contact switches with holding coil means and subclasses 43.01+ for switches with unauthorized use prevention devices comprising locks.

307, Electrical Transmission or Interconnection Systems,

142, for switch actuating means with locking, holding or breaking features.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

77, for motor actuated switches with lock, latch or trip means, subclass 113 for multiple contact automatic telephone switches with holding, locking or latching means, subclasses 157+ for electromagnetic switches with operation inhibiting means and subclasses 167+ for latching means with unwanted contact actuation prevention means.

361, Electricity: Electrical Systems and Devices,

194, for electric circuits for relays and electromagnets and including holding means.

379, Telephonic Communications,

195, for automatic telephone switching systems with lockout.