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:
Mar. 31, 2009
Filed:
Dec. 01, 2003
Applicants:
Christophe Maerky, Saint-Ouen L'Aumone, FR;
Geraint Jewell, Owlthorpe Sheffield, GB;
Richard Clark, Sheffield, GB;
Paul Stewart, Sheffield, GB;
Inventors:
Christophe Maerky, Saint-Ouen L'Aumone, FR;
Geraint Jewell, Owlthorpe Sheffield, GB;
Richard Clark, Sheffield, GB;
Paul Stewart, Sheffield, GB;
Assignee:
Valeo Systemes de Controle Moteur, Osny, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speed sensor for a moving member () comprises means () for constituting a magnetic singularity on a portion of the moving member, and a sleeve slidably receiving said portion and including at least an annular coil () and an annular permanent magnet () disposed on a common axis between annular pole pieces ().