Title: Pressure-sensitive flexible resistors

Abstract: Pressure-sensitive flexible resistors comprising an elastomeric material containing a controlled resistive element or material are prepared by impregnating an elastomeric material such as a rubber with a semiconducting carbonaceous pyropolymeric inorganic refractory oxide material.

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Inventors: Tadewald, Thomas D. (La Crosee, WI, US)

Application Number: 547689
Filing Date: 1975-02-06
Publication_date: 1979-05-01
Assignee: Universal Oil Products Company (Des Plaines, IL)
Primary Class(es): 252/506 252/508, 252/511, 338/114
Other Classes:
US Patent Ref:

3295088	Dec, 1966	Smith	338/114.
3419702	Dec, 1968	Piel	338/114.
3651386	Mar, 1972	Youtsey et al.	252/506.
3947278	Mar, 1976	Youtsey	252/511.
4018943	Apr, 1977	Youtsey et al.	252/506.
4054540	Oct, 1977	Michalchik	338/114.

Other Refs: 25434551456997243143

Apr, 1976	DE
Sep, 1966	FR
Nov, 1925	GB

Primary Examiner: Padgett, Benjamin R.
Assistant Examiner: Barr, J. L.
Attorney: Hoatson, Jr.; James R., Nelson; Raymond H., Page, II; William H.