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:
May. 03, 2011
Filed:
Jan. 21, 2005
Herminio Navalon Carretero, Motilla del Palancar, ES;
Herminio Navalon Carretero, Motilla del Palancar, ES;
Nagares, S.A., Madrid, ES;
Abstract
Incorporates at least one thermal switch () in series with the heating resistor () of the module located on the frame () of said resistors () that cuts off current to the resistor () when the heater power control circuit fails. The thermal switch () can be between the heating resistor () and the earth connection of the support (), or between the heating resistor () and the power supply () of the module. The module allows a closed-loop control using as variable the temperature of one of the resistors (), whose resistivity can change with the temperature. Similarly, the electronic control circuit can also be integrated in the heater frame (), allowing a closed-loop control of the dissipated power using as control variable the temperature of the frame ().