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:
Mar. 19, 1985
Filed:
Mar. 17, 1983
John Jackson, Lanark, GB;
University of Strathclyde, Glasgow, GB;
Abstract
Electrically-conductive materials comprising silicone rubber in combination with carbon particles in graphitic form incorporate a vegetable oil additive to provide enhanced physical and electrical resistance properties. Electrical resistivity for stress loadings below 500 grammes per square millimeter is less than 500 ohm-meters and for step changes in stress is of the order of 1K ohms-cm. A large number of vegetable oils provide these characteristics in the materials when the vegetable oils are present in the material in the range of 10-30% by volume. Carbon loading may be in the range 50-90% when measured in carbon grammes weight in relation to the milliliter content of the volume of silicone rubber and vegetable oil.