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:
Sep. 19, 1978
Filed:
Sep. 12, 1975
Applicant:
Inventors:
Niels Junior Hansen, Camp Hill, PA (US);
John Ambrose Ward, Carlisle, PA (US);
William Hintze, Camp Hill, PA (US);
David Charles Johnson, Winston-Salem, NC (US);
Assignee:
AMP Incorporated, Harrisburg, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
337107 ; 337377 ; 338289 ; 338309 ;
Abstract
An improved bimetal actuator is disclosed. A thin film resistor is fixed to the high expansion side of a bimetal element and, when energized, generates sufficient heat to actuate the bimetal. The resistor has a serpentine configuration formed by a continuous series of loops, each successive loop having a greater width from the fixed to the free end of the bimetal, to provide differential heating of the bimetal and thus a greater movement of its free end for the power dissipated in the resistor.