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:
Jun. 25, 1985
Filed:
Dec. 13, 1982
William H Jones, Villa Park, IL (US);
Worthy L Chambers, Lombard, IL (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A thermostat having a low force output, snap-acting thermally responsive bi-metal disc operative through a pushrod to move the blade of an SPDT switch at a pre-selected temperature. The switch has a cantilever blade formed of a unitary thin metal strip having a flexible stem with a first rigid tongue extending therefrom with a heavy current carrying moveable contact thereon for a normally closed contact set. The pushrod contacts the rigid first tongue for switch actuation. A second flexible tongue extends from the stem and has an integral low current normally open contact thereon for a contact set which is closed upon switch blade actuation. Upon further temperature rise, after switch actuation, pushrod over-travel on the first tongue is absorbed by resilient flexing of the stem and second tongue thereby providing a wiping action to the closed low current contact set.