Temperature control device with a spring-biased stem and a switch spring of bridge-like configuration
AssigneeElectrovac, Fabrikation elektronischer Spezialartikel Gesellschaft m.b.H.
InventorsHans-Peter Morbitzer, Peter Sekira
Life of this patent
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Abstract
A temperature control device includes; a spring-biased stem guided in a p and having a temperature expansion coefficient which is different from the temperature expansion coefficient of the pipe, with the stem acting via a plunger and a switch assembly upon a switching contact. The switch assembly includes a switch spring of bridge-like configuration which is secured to a backing spring mounted to a base plate of the housing and preferably includes a raised central part for support of the plunger.
Claims14
A temperature control device, comprising:
- a housing having a switching contact;
- and
- actuation means for operating said contact, said actuation means including a pipe having a temperature expansion coefficient, a spring-biased stem guided in said pipe and having a temperature expansion coefficient differing from the temperature expansion coefficient of said pipe, a plunger operatively connected to said stem and a spring assembly cooperating with said plunger,
- said spring assembly including a switch spring in form of a bridge for actuation of said contact, said switch spring having a central area which supports said plunger and exhibiting lateral areas extending from said central area, said central area being raised relative to the lateral areas of said switch spring.
A temperature control device, comprising:
- a housing having a switching contact;
- and
- actuation means for operating said contact, said actuation means including a pipe having a temperature expansion coefficient, a spring-biased stem guided in said pipe and having a temperature expansion coefficient differing from the temperature expansion coefficient of said pipe, a plunger operatively connected to said stem and a spring assembly cooperating with said plunger,
- said spring assembly including a switch spring provided in form of a bridge for actuation of said contact, said switch spring having a central area which supports said plunger, and a backing spring which has a central area and supports said switch spring, said housing having a base plate for attachment of said central area of said backing spring.
Dependencies are inferred from the claim text.