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:
Sep. 01, 1987
Filed:
Jul. 26, 1985
Zvi Shkedi, Los Angeles, CA (US);
The Garrett Corporation, Los Angeles, CA (US);
Abstract
A quartz pressure transducer is disclosed which includes four or five elements, three of which are diaphragms containing deposited metal electrodes on both sides thereof. Since the electrodes are all on the diaphragms, the transducer disclosed herein is highly resistant to errors caused by changes in temperature, while retaining excellent resistance to errors caused by acceleration or vibration forces. The transducer may be constructed as either an absolute pressure sensor or as a differential pressure sensor, and in the primary embodiment contains a reference capacitance which may be used by appropriate electronic circuitry to provide compensation for acceleration or vibration forces, making the output of the pressure transducer of the present invention a highly accurate, highly sensitive indication of pressure sensed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile