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:
Jun. 30, 2015
Filed:
Nov. 09, 2011
Applicants:
Christopher C. North, Woodland Park, CO (US);
Jeffrey A. Stewart, Woodland Park, CO (US);
Inventors:
Christopher C. North, Woodland Park, CO (US);
Jeffrey A. Stewart, Woodland Park, CO (US);
Assignee:
Sturman Industries, Inc., Woodland Park, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01B 7/30 (2006.01); H01F 5/00 (2006.01);
U.S. Cl.
CPC ...
G01B 7/14 (2013.01); H01F 5/00 (2013.01);
Abstract
Position sensors and methods having a coil, a magnetic target movable into greater and lesser proximity to the coil responsive to the position to be sensed, and circuitry responsive to an inductance of the coil to provided a measure of the proximity of the magnetic target to the coil. Various embodiments are disclosed, including embodiments having improved sensitivity and shielding from stray fields and for shielding from magnetic fields generated by the coil excitation.