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, 1989
Filed:
Jan. 12, 1988
Applicant:
Inventors:
Peter W Crossley, Nevilles Cross, GB;
Bernard F Fellerman, Hayling Island, GB;
Graham H Goodchild, Dryburn Park, GB;
Assignee:
Thorn Emi Patents Limited, Hayes, GB;
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219464 ; 219449 ; 219465 ;
Abstract
A heating assembly is disclosed in which infra-red energy generated by one or more tungsten halogen lamps is transmitted through a glass ceramic layer covering the lamp or lamps. The operating temperature of the glass ceramic layer is monitored by a thermal limiter in the form of a rod of thermally expansive material which, upon expansion by a predetermined amount, actuates a cut-out switch which de-energizes the lamp or lamps. The rod is shielded from incident energy from the lamp or lamps to render it primarily responsive to the operating temperature of the glass ceramic layer.