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:
Dec. 27, 1994
Filed:
Jul. 12, 1993
Jerrold Pine, Boca Raton, FL (US);
Stefan Peana, Boca Raton, FL (US);
Charles A Hahs, Jr, Boca Raton, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A variable resistor (102) for varying a resistance between first and second terminals (145, 150) includes a substrate (200) having formed thereon a resistor network (205) for providing the resistance, wherein the resistor network (205) is electrically coupled between the first and second terminals (145, 150). The variable resistor (102) further includes an elastomeric actuator (300) having opposing upper and lower surfaces (310, 305), wherein the lower surface (305) is conductive. The lower surface (305) electrically couples the first terminal (145) to successive portions of the resistor network (205) as an increasing force is applied to the upper surface (310) of the elastomeric actuator (300), in response to which the resistance between the first and second terminals (145, 150) varies.