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:
May. 18, 1982
Filed:
Aug. 14, 1980
Peter J Herzl, Morrisville, PA (US);
Fischer & Porter Co., Warminster, PA (US);
Abstract
A vortex-shedding flowmeter capable of accurately measuring the flow rate of a liquid or gas even under extreme operating conditions. The fluid to be metered is conducted though a flow pipe having a shedder fixedly mounted therein. A sensor which is caused to oscillate at a rate proportionate to the flow rate of the fluid is torsionally supported downstream behind the shedder on a pivot axis normal to the flow axis of the pipe, the torsional support including a torque tube whose base is received within a bore in the pipe and is welded thereto and whose tip is welded to one end of the sensor to provide a closed structure preventing leakage of fluid from the pipe. The sensor oscillations are converted into corresponding electrical signals by an external torque transducer operatively coupled to the sensor by a sensor link assembly including a rod which extends coaxially into the torque tube and is welded to the tip thereof.