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. 05, 2001
Filed:
Jul. 01, 1999
Applicant:
Inventors:
Kenneth M. Provancha, Soquel, CA (US);
Bernard Feldman, Corralitos, CA (US);
Assignee:
Thermostone USA, LLC, Salinas, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 3/16 ;
U.S. Cl.
CPC ...
H05B 3/16 ;
Abstract
A thin film tin-oxide heater (,) including an annular inner heat region (,), an annular outer heat region (,), a first silver buss bar (,), and a second silver buss bar (,). The radius (r,) between the inner and outer heat regions is selected so that the resistance per unit square and power per unit area for the inner heat region approximates the resistance per unit square and power per unit area for the outer heat region.