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:
Jul. 13, 2004
Filed:
Apr. 29, 2003
George D. Davis, Bellevue, WA (US);
Robert F. Jordan, Brier, WA (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A thermal switch having a thermally, responsive bimetallic member that exhibits a snap-action response and a pair of relatively movable contacts positioned relative to the thermally responsive bimetallic member such that the thermally responsive bimetallic member is positioned to actuate one of the pair of relatively movable contacts by transitioning between one and another of the first and second stable states, the bimetallic member being a bimetallic material fabricated of two materials having different coefficients of thermal expansion and formed in a non-planar shape to achieve a snap-action between first and second stable states as a function of temperature and having an artifact formed as a localized heat-treated area in a surface of a first of the two materials and cooperating with the non-planar shape to achieve the snap-action.