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.

Date of Patent:
Jul. 17, 2012

Filed:

Sep. 28, 2009
Applicants:

Morgan Davidson, River Heights, UT (US);

Steven R. Wassom, Smithfield, UT (US);

Inventors:

Morgan Davidson, River Heights, UT (US);

Steven R. Wassom, Smithfield, UT (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/14 (2006.01); G01B 11/26 (2006.01); G01C 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and apparatus for determining the longitudinal position of a tapered displaceable element positioned between two substantially orthogonally laterally opposing displacement sensors. A change in the longitudinal position of the displaceable element causes the sensors to each measure their distance to the displaceable element which relates directly to the local thickness and thus the longitudinal position of the displaceable element. The system factors out errors in measured lateral proximity position of the displaceable element since an erroneous proximity to one sensor is equal and opposite to an erroneous proximity to the other.


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