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:
Apr. 16, 2013
Filed:
May. 28, 2008
Applicant:
Laurent Bouchard, Plaisance du Touch, FR;
Inventor:
Laurent Bouchard, Plaisance du Touch, FR;
Assignee:
Technofan, Blagnac, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 15/02 (2006.01); F04D 29/056 (2006.01);
U.S. Cl.
CPC ...
Abstract
The fan has an arrangement for monitoring the ageing of at least one of its bearing, the arrangement including a reference ambient temperature sensor and a processing circuit for comparing the temperature difference between the temperature measured by the temperature sensor or by each temperature sensor fitted directly on the corresponding bearing and the temperature measured by the reference temperature sensor with a first predetermined value.