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:
Oct. 04, 1977
Filed:
Aug. 20, 1976
Arthur R Zias, Los Altos, CA (US);
Duane R Tandeske, Pleasanton, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A pressure transducer is automatically calibrated electronically by periodically subjecting the transducer to a reference pressure for a brief period of time. During this period of time the transducer electrical output is automatically adjusted to a level that represents the desired value for the reference pressure. The calibration can be accomplished just prior to taking a measurement or it can be accomplished at regular intervals spaced to ensure the accuracy of readings taken between calibrations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile