The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 1977
Filed:
Sep. 01, 1976
Applicant:
Inventor:
Svein Eide, Sandnes, NO;
Assignee:
A/S Ardal og Sunndal Verk, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219449 ; 219452 ; 219456 ; 219462 ; 219530 ;
Abstract
An electric hotplate with a thermostat includes a heating plate which is joined to the surrounding cold zones by means of a bridge of relatively thin sheet metal. The actuating device for a thermostatic switch is operated by the vertical movement of the heating plate. This movement arises as a consequence of the horizontal expansions and contractions of the heating plate due to changes in temperature, such movements being converted, by means of the bridge, which acts as a hinge, to vertical movements.