Pressure-sensitive sensor
Patent 5311779 Issued on May 17, 1994. Estimated Expiration Date: 
January 3, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 3, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPressure sensor utilizing extension type conductive rubber Patent #: 5045829 InventorApplicationNo. 817041 filed on 01/03/1992US Classes:73/726, Strain gauge73/720, Strain gauge73/753, Electrical73/862.629, Specific type of elastic member338/4Fluid- or gas pressure-actuatedExaminersPrimary: Woodiel, Donald O.Attorney, Agent or FirmInternational ClassesG01M 009/04753 AbstractA pressure sensitive sensor in which a pressure detecting convex portion is formed on the surface of a pressure-sensitive and conductive elastomer sheet, and an electrode is arranged on the reverse side of the pressure detecting convex portion for making it possible to detect a pressure acting in the direction in parallel or in the oblique direction with a slight angle with respect to the surface of a pressure-sensitive and conductive elastomer component. In addition, for obtaining a high detection density, a contact is made up with a face-defined body defining a pressure face, and a contacting convex portion is made to protrude from the face-defined body, where the contact is resiliently supported onto the pressure-sensitive elastomer sheet.Field of SearchWith protective separatorCapacitive Capacitive Strain gauge Piezoresistive Resistive Semiconductor Strain gauge Piezoresistive Resistance strain gage Specific type of elastic member Flexible element (e.g., beam, plate, or web) Including a specific type of electrical circuit Using a specific type of electrical sensor Fluid- or gas pressure-actuated Force-actuated Fluid- or gas pressure-actuated Extensometer type | |
