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Class Information
Number: 337/104
Name: Electricity: electrothermally or thermally actuated switches > Electrothermally actuated switches > With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) > With external or auxiliary heating means > Plural heating means
Description: Subject matter wherein the heating means consists of at least two or more separate and distinct heating devices capable of acting individually or coordinately to influence the action of at least one bimetallic element.

Patents under this class:

Patent Number Title Of Patent Date Issued
8274355 Trip device Sep. 25, 2012
7800478 Electrical switching apparatus and heater assembly therefor Sep. 21, 2010
7446643 Resetable over-current and/or over-temperature protection system Nov. 4, 2008
7330097 Direct current cutoff switch Feb. 12, 2008
6664885 Thermally activated latch Dec. 16, 2003
6498560 Protector assembly and method for electrically insulating a thermally responsive protector from a motor winding of an electric motor Dec. 24, 2002
5835001 Temperature-dependent switch having a movable contact carrying a heating resistor Nov. 10, 1998
5757261 Temperature controller having a Bimetallic element and plural heating components May. 26, 1998
5745022 Bimetallic temperature controller having a resistor for self-locking function and a resistor for excess current protection Apr. 28, 1998
5367279 Overcurrent protection device Nov. 22, 1994
5265521 Toast shade selector Nov. 30, 1993
5192937 Resistance unit for motor speed control Mar. 9, 1993
5039843 Safety cutout device Aug. 13, 1991
5023586 Hermetic motor protector Jun. 11, 1991
4866408 Multiphase motor protector apparatus Sep. 12, 1989
4851804 Thermo-activating breaker Jul. 25, 1989
4570143 Thermally actuated variable-rating circuit breaker having selectively connectable heater elements Feb. 11, 1986
4481494 Bi-metal snap disc operated relay Nov. 6, 1984
4376926 Motor protector calibratable by housing deformation having improved sealing and compactness Mar. 15, 1983
4357525 Glow plug duty cycle modulating apparatus Nov. 2, 1982
4321458 Setback device Mar. 23, 1982
4307367 Bi-stable relay Dec. 22, 1981
4205292 Electric time switch May. 27, 1980
3976966 Electric sequencer and electric heating system Aug. 24, 1976

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