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:
Aug. 21, 2012
Filed:
Jan. 10, 2008
Applicants:
Valerio Aisa, Fabriano, IT;
Enrico Smargiassi, Jesi, IT;
Inventors:
Valerio Aisa, Fabriano, IT;
Enrico Smargiassi, Jesi, IT;
Assignee:
Indesit Company S.p.A., Fabriano, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 23/02 (2006.01); G01R 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for measuring the mains frequency by a digital control system of an electrical appliance, in particular an electrical household appliance, in which the digital control system is prearranged for performing rigorous measurements of the value of the mains frequency and of its variations through an operation of calibration of the means for measurement of the mains frequency performed prior to marketing of the product.