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:
Oct. 03, 2006
Filed:
Mar. 04, 2004
Applicant:
Roy E. Mallory, Bedford, MA (US);
Inventor:
Roy E. Mallory, Bedford, MA (US);
Assignee:
ADE Corporation, Westwood, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/16 (2006.01); G01L 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved non-contact capacitive displacement sensor that may be employed for accurately measuring small distances between the sensor and shaped targets. The non-contact capacitive displacement sensor includes a probe having a sensor element and a guard element. The guard element substantially surrounds the sensor element. At least the sensor element has a shape that substantially matches the shape of a target element.