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:
Apr. 10, 1984
Filed:
Dec. 14, 1981
Applicant:
Inventors:
Joannes N de Jong, West Ford, MA (US);
Richard L Earle, Mendon, MA (US);
Assignee:
Sperry Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ; G01L / ;
U.S. Cl.
CPC ...
361283 ; 73724 ;
Abstract
In a capacitive pressure transducer of the type having a flexible diaphragm, a 'dimple' like or concave surface is formed therein in order to provide an air gap between the flexible diaphragm and a relatively rigid plate. When pressure is applied to the diaphragm, the diaphragm deflects providing a measurable change in capacitance which varies as a function of the applied pressure.