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. 09, 1992
Filed:
Feb. 06, 1991
Applicant:
Inventor:
Russ J Baker, Horseheads, NY (US);
Assignee:
Emhart Industries, Inc., Towson, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324690 ; 324671 ;
Abstract
A capacitive sensor senses the wall thickness of an object. The sensor has an electrode covered by an adhesive tape including a non-transparent glass cloth tape layer which engages the object and a layer of silicon or acrylic adhesive for securing the tape layer to the electrode. The adhesive and tape have a dielectric constant that is constant throughout the temperature range in which the sensor is to operate.