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:
Aug. 13, 1985
Filed:
Dec. 19, 1983
Applicant:
Inventors:
Roland Canet, Lormont, FR;
Pierre Delhaes, Gradignan, FR;
Eliane Dupart, Cestas, FR;
Adolphe Pacault, Tolence, FR;
Claude Pascal, Cestas, FR;
Jean-Pierre Manceau, Preignac, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ; G01L / ;
U.S. Cl.
CPC ...
338 36 ; 338308 ; 338-4 ; 252500 ;
Abstract
The present invention relates to a piezoresistive gauge. This gauge comprises a support, on which are formed two pairs of electrical contacts, partly covered with a piezoresistive element, made from an electricity-conducting organic compound, chosen from among the salts of tetramethyl-tetrathiofulvalene, quaternary ammonium salts of tetracyanoquinodimethane and diethyl-dimethyl-tetrathiofulvalene-tetracyanoquinodimethane (DEDMTTF-TCNQ). This gauge can be used for measuring pressures of approximately 500 bars to a few kbars.