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:
Oct. 29, 2002
Filed:
Aug. 23, 2001
John Crawshaw Taylor, Isle of Man, GB;
Strix Limited, Ronaldsway, IL;
Abstract
A thermally sensitive, overheat protection control for a thick film electric heater comprises a bimetallic actuator ( ) arranged for making good thermal contact with the heater, and a moveable electrical contact ( ) for engagement with a contact provided on the heater. The moveable contact ( ) is operatively coupled to the bimetallic actuator ( ) such that in use upon operation of the actuator, it moves out of engagement with the heater contact to interrupt the electrical supply to the heater. The bimetallic actuator ( ) and the moveable contact are mounted on a common generally U-shaped leaf spring ( ) which acts in use resiliently to bias the actuator ( ) into thermal contact with the heater and the moveable contact ( ) into electrical contact therewith. The control also comprises a creep action bimetallic actuator ( ) mounting a contact at one end, the actuator acting as a thermostatic control for the heater.