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US 4,218,670 AGranted
Thermostatic circuit breaker
AssigneeAisin Seiki Kabushiki Kaisha
InventorTsukasa Watanabe
Life of this patent
Estimating the term…
Abstract
A thermostatic circuit breaker includes a movable contact which is movable in response to thermal transformation of a thermostatic disk. In order to easily support the movable contact, the movable contact is secured to an offset spring of electrically-conducting and elastic material and is located at a predetermined position with respect to the thermostatic disk and a stationary contact.
Claims7
A thermostatic circuit breaker comprising:
- a case acting as a first terminal which comprises electrically conducting material;
- a temperature sensitive thermostatic disk installed in the case and movable from one curvature to an opposite curvature upon occurence of a perdetermined temperature condition;
- a stator of electrically insulating material secured at a predetermined position in said case including a plate of electrically conducting material axially extending through said stator and acting as a second terminal;
- a stationary contact secured to the inner end of said plate;
- a movable contact movable toward and away from said stationary contact by said disk;
- and
- an off-set spring of electrically conducting and elastic material supported by said stator by the elasticity thereof and directly contacted with said case, said movable contact being securely mounted on said spring which is normally urged to move away from said stationary contact.
4 more elements
A thermostatic circuit breaker comprising:
- a case acting as a first terminal which comprises electrically conducting material;
- a temperature sensitive thermostatic disk installed in the case and movable from one curvature to an opposite curvature upon occurrence of a predetermined temperature condition;
- a stator of electrically insulating material secured at a predetermined position in said case including a plate of electrically conducting material axially extending through said stator and acting as a second terminal;
- a stationary contact secured to the inner end of said plate
- a movable contact movable toward and away from said stationary contact by said disk;
- and
- an off-set spring of electrically conducting and elastic material supported by said stator by the elasticity thereof and directly contacted with said case, said movable contact being secured mounted on said spring which is normally urged to move towards said stationary contact.
4 more elements
Dependencies are inferred from the claim text.