Temperature responsive devices
OwnerKarl Fischerinventor
Life of this patent
Estimating the term…
Abstract
An expansible box or bellows or diaphram box comprises two corrugated metal sheets secured together in a sealed manner about their rims. The box is arranged between a transmission lever and an adjusting member. A connection piece has a flange portion which lies against the inside of one metal sheet and a tubular portion which passes through an opening in the metal sheet and through an opening in the transmission lever. The connection piece thereby serves to locate the expansible box on the transmission lever. A capillary tube is soldered inside the tubular portion and leads to a temperature sensor. The transmission lever acts on a snap switch.
Claims25
A temperature-responsive device comprising an expansible box comprising two sheet metal members which are interconnected in a sealed manner;
- a temperature sensor;
- a capillary tube connected to the latter;
- means connecting said capillary tube to said expansible box;
- an expansible fluid filling said temperature sensor, said capillary tube and said box;
- a movable transmission lever which is rigidly connected with said expansible box at the side of one of said sheet metal members, said lever having an opening through which said capillary tube passes;
- said one sheet metal member having a central region with an opening therein and said connecting means comprising a connection piece secured to said one sheet metal member and having an inner flange which is located inside said expansible box and a tubular portion which extends outwardly through said opening, said capillary tube being inserted into said tubular portion.
A temperature-responsive device comprising an expansible box comprising two sheet metal members which are interconnected in a sealed manner;
- a temperature sensor;
- a capillary tube connected to the latter;
- means connecting said capillary tube to said expansible box;
- an expansible fluid filling said temperature sensor, said capillary tube and said box;
- a movable transmission lever which co-operates with said expansible box at the side of one of said sheet metal members, said lever having an opening through which said capillary tube passes;
- and a guide member which is rigidly mounted on the transmission lever, said guide member having a tubular portion in which said tubular portion of said connection piece is received;
- said one sheet metal member having a central region with an opening therein and said connecting means comprising a connection piece secured to said one sheet metal member and having an inner flange which is located inside said expansible box and a tubular portion which extends outwardly through said opening, said capillary tube being inserted into said tubular portion.
A temperature regulator for an electrical appliance comprising an expansible box having a connection piece, a temperature sensor, a capillary tube connecting said sensor to said connection piece, adjusting means which acts upon one side of said expansible box, a transmission lever which is acted upon by the other side of said expansible box and snap switch means arranged to be actuated by said transmission lever, said transmission lever extending closely across said expansible box said connection piece extending centrally into said expansible box and through an opening in said transmission lever, thus locating said expansible box on said transmission lever, said snap switch means being arranged transversely of the longitudinal extent of said transmission lever.
A temperature-responsive device comprising an expansible box comprising two sheet metal members which are interconnected in a sealed manner;
- a temperature sensor;
- a capillary tube connected to the latter;
- means connecting said capillary tube to said expansible box;
- an expansible fluid filling said temperature sensor, said capillary tube and said box;
- a movable transmission lever which co-operates with said expansible box at the side of one of said sheet metal members, said lever having an opening through which said capillary tube passes and lying closely adjacent said expansible box;
- and snap switch means disposed to be actuated by said transmission lever and arranged transversely to said transmission lever, said snap switch means having two sets of contacts adapted to switch at different temperatures;
- said one sheet metal member having a central region with an opening therein and said connecting means comprising a connection piece secured to said one sheet metal member and having an inner flange which is located inside said expansible box and a tubular portion which extends outwardly through said opening, said capillary tube being inserted into said tubular portion.
A temperature regulator for an electrical appliance comprising an expansible box having a connection piece;
- a temperature sensor;
- a capillary tube connecting said sensor to said connection piece;
- adjusting means which acts upon one side of said expansible box;
- a transmission lever which is acted upon by the other side of said expansible box;
- snap switch means arranged to be actuated by said transmission lever;
- and a heatable bimetal strip mounted by one end on said transmission lever, the other end of which bimetal strip acts upon said snap switch means;
- said transmission lever extending closely across said expansible box, said connection piece extending centrally into said expansible box and through an opening in said transmission lever, thus locating said expansible box on said transmission lever, and said snap switch means being arranged transversely of the longitudinal extent of said transmission lever.
Dependencies are inferred from the claim text.