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:
Nov. 11, 2003
Filed:
Dec. 19, 2001
Applicant:
Inventor:
David Lussey, Richmond, GB;
Assignee:
Peratech Limited, Darlington, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 1/010 ;
U.S. Cl.
CPC ...
H01C 1/010 ;
Abstract
A conductive structure is used in electric variable resistance devices to provide changes in electrical resistance with movement and changes in pressure, the variable resistance device comprising externally connectable electrodes ( ) bridged by an element ( ) containing polymer and particles of metal, alloy or reduced metal oxide, said element ( ) having a first level of conductance when quiescent and being convertible to a second level of conductance by change of stress applied by stretching or compression or electric field, the device further comprising by means ( ) to stress the element ( ) over a cross-sectional area proportional to the level of conductance required.