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Class 337/412 - Plural independent fuse elements with single circuit completion means


Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter including at least two or more fusible elements
No. of patents: 8
Last issue date: 03/16/2004


NumberTitleIssue Date
6707370Thermal switch and heater
A thermal switch comprises an elongate tubular sealed housing. A control circuit is mounted in the housing. The control circuit comprises a thermostat, a fuse and a thermal overload switch electrically connected in series. An electrical connector is mounted to the h...
03/16/2004
6603385Safety devices for electrical circuits and systems
A protective device for minimizing fire danger in the use of electrical circuits comprises a unit having a mechanically biased conductive element in series with the circuit, and maintained in position under tension by a fusible material such as a Cerro al...
08/05/2003
6445563Power circuit breaker using temperature-sensive fuse
A power circuit breaker has a housing, a fuse element placed in the housing, and a temperature sensitive fuse attached to the fuse element. The fuse element has tab terminals extending from both ends, which are received by trunk terminals connected to an ...
09/03/2002
6340926Power plug with circuit breaker
A power plug includes a plug body having opposite sides and an end, terminal prongs extending from the end of the plug body, and a built-in circuit breaker. The circuit breaker is operable between a normal condition enabling the power plug to connect a lo...
01/22/2002
6204747Safety devices for electrical circuits and systems
A protective device for minimizing fire danger in the use of electrical circuits comprises a unit having a mechanically biased conductive element in series with the circuit, and maintained in position under tension by a fusible material such as a Cerro al...
03/20/2001
4339638Electrical switch
An electrical switch includes a body having one open end exposed for adaptation of a pyrotechnic cartridge and the other end sealed by the base of a pin type connector assembly having short conductive pins and elongated conductive pins with relief areas c...
07/13/1982
4196636Mechanism control device
A control apparatus is disclosed for regulating the movement of a control stem which is biased in a given direction. The apparatus comprises a housing forming a chamber and a plurality of passages. The chamber receives the control stem in its direction of...
04/08/1980
4034264Arrangement for detecting a deficient operational capability of a vacuum switching vessel
The invention is directed to an arrangement for detecting deficient operational capability in a vacuum switching vessel. The arrangement can provide a signal if a fault occurs which affects the operability of the switching vessel. Instead of a signal, a p...
07/05/1977
 
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