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:
Feb. 25, 2020
Filed:
Jul. 23, 2015
Applicant:
Electrolux Appliances Aktiebolag, Stockholm, SE;
Inventors:
Laurent Jeanneteau, Forli, IT;
Alex Viroli, Forli, IT;
Massimo Nostro, Forli, IT;
Fabio Angeli, Forli, IT;
Assignee:
Electrolux Appliances Aktiebolag, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); H01H 3/00 (2006.01); H01H 47/22 (2006.01); B23K 9/095 (2006.01);
U.S. Cl.
CPC ...
H01H 47/002 (2013.01); H01H 3/001 (2013.01); H01H 47/22 (2013.01); B23K 9/095 (2013.01); H01H 2047/003 (2013.01); H01H 2231/012 (2013.01);
Abstract
Contacts of a relay may glue together during operation. This state may be measured and a controller may issue a pulse width-modulated signal at a certain duty cycle and frequency in order to vibrate the relay contacts to make them open again. Once this is the case, the process is stopped. This process may be repeated a certain number of times, and if successfully degluing is not possible, a notification may be generated. Also after a certain number of degluing cycles, a signal may be generated to indicate replacement of the relay.