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. 23, 2002
Filed:
Aug. 14, 1997
John Betts, Modesto, CA (US);
Deltatrak, Inc., Modesto, CA (US);
Abstract
A temperature indicating device utilizing a housing having an exterior and an interior which includes first and second chambers. First and second chambers communicate with one another. An opening through the housing allows communication between the interior and exterior of the housing. A bimetallic element which is capable of assuming first and second configurations is positioned within the second chamber. A movable member is found in the first chamber and contacts the bimetallic elements when the bimetallic elements assumes the first configuration. A spring bias the contact between the movable member and the bimetallic element and urges movement therebetween when the bimetallic element assumes the second configuration. A signal indicates such movement by utilization of the opening between the exterior and interior of the housing.