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. 10, 2007
Filed:
Jun. 19, 2000
Andrew Booth, Williston, VT (US);
Harold Warren, Sugar Grove, NC (US);
Wink Winkelmann, Boonb, NC (US);
Edward Jenko, Essey Junction, VT (US);
Jim Pilavdzic, Milton, VT (US);
Andrew Booth, Williston, VT (US);
Harold Warren, Sugar Grove, NC (US);
Wink Winkelmann, Boonb, NC (US);
Edward Jenko, Essey Junction, VT (US);
Jim Pilavdzic, Milton, VT (US);
Abstract
A thick-film electric heater having thick-film layers applied directly on a thermally conductive non-flat substrate. Preferably, the substrate is cylindrically shaped. A dielectric layer is silk-screened on the substrate surface. A resistive layer is silk-screened on the dielectric layer to form a circuit for the generation of heat. The resistive layer has at least one resistive trace in a pattern that is discontinuous circumferentially. At least a pair of silk-screened contact pads are applied in electrical communication with the resistive layer for electrical connection to a power source. An insulation layer is applied over the resistive layer.