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. 20, 2007
Filed:
Mar. 24, 2005
Applicant:
Mark Freeman, Framingham, MA (US);
Inventor:
Mark Freeman, Framingham, MA (US);
Assignee:
Stoneridge Control Devices, Inc., Canton, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01R 33/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
A target activated sensor including a magnet, a magnetic field sensing element located proximate the magnet and a single ferrous pole located proximate the sensing element. The sensing element senses a change in magnetic field caused by the presence of a target. The magnet, sensing element and single pole piece may be combined in a single package.