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:
Nov. 17, 2009
Filed:
Aug. 06, 2008
Jose Miguel Amoriza Berasaluce, Galdakao, ES;
Gonzalo Fernández Llona, Elorrio, ES;
Eider Landa Oñate, Bergara, ES;
Eneko Muguerza Murgizu, Igorre, ES;
Jose Miguel Amoriza Berasaluce, Galdakao, ES;
Gonzalo Fernández Llona, Elorrio, ES;
Eider Landa Oñate, Bergara, ES;
Eneko Muguerza Murgizu, Igorre, ES;
Eika, S. Coop, Etxebarria (Bizkaia), ES;
Abstract
A switch for a domestic appliance, such as a cooking range, that includes a radiation emitter, an auxiliary radiation emitter and a radiation receiver, the radiation receiver adapted to receive at least part of the radiation emitted from the radiation emitter and auxiliary radiation emitter and to generate one or more reception signals whose values depend on the radiation received. A controller associated with the switch generates a periodic control pulse (Pc) at a first time interval to cause the radiation emitter to emit radiation for a duration of time and a periodic test pulse (Pt) at a second time interval different than the first time interval to cause the auxiliary radiation emitter to emit radiation for a duration of time. The controller configured to evaluate the one or more reception signals to determine if an error or malfunction exists in the switch.