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:
Feb. 08, 1977
Filed:
Sep. 17, 1975
Richard J Billette, Dublin, CA (US);
Arthur R Zias, Los Altos, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A flow meter includes a variable area obstruction mounted in a conduit and a differential pressure transducer having its two ports mounted on opposite sides of the obstruction in fluid communication with the fluid flowing through the conduit. The variable area obstruction is formed of one or more flexible leaves which extend into the flow stream and are deflectable under the influence of fluid pressure, such that an increased flow rate increases the deflection of the leaves and decreases the area of the obstruction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile