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:
Sep. 17, 1996
Filed:
Sep. 29, 1994
Applicant:
Inventors:
Donald K Belcher, W. Melbourne, FL (US);
David C Bailey, Cocoa Beach, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G / ; H01G / ;
U.S. Cl.
CPC ...
3612982 ; 361277 ; 3612831 ; 361287 ; 3612981 ; 3612994 ; 3612995 ; 3612983 ; 3612984 ;
Abstract
A variable capacitor and method of varying capacitance in which two pressurally engaged plates having electrically conductive patterns on facing surfaces are separated by a low friction polytetrafluoroethylene (Teflon.TM.) dielectric disk so that the plates may be rotated relative to one another to vary capacitance. Each of the facing surfaces of the plates include two spaced semicircular patterns, one that is electrically connected to the capacitor and one that is not, for maintaining the separation of the plates from the disk. The dielectric disk may be ten to twenty times thicker than the semicircular patterns.