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:
Dec. 30, 1986
Filed:
Aug. 05, 1985
Roy F Schmoock, Yardley, PA (US);
Fischer & Porter Company, Warminster, PA (US);
Abstract
An electromagnetic flowmeter for metering the flow rates of fluids of low conductivity, the flowmeter including a non-magnetic spool within which is disposed a pair of electrode assemblies at diametrically-opposed positions embedded with an insulating layer molded against the inner surface of the spool. Each assembly is constituted by a curved measuring electrode plate and a curved shielding electrode plate concentric with the spool, the face of the measuring electrode plate being exposed. Received within the insulating layer and covering the faces of the measuring electrode plates is a tubular liner made of dielectric material whose properties are appropriate to the fluid being metered, the liner defining a flow conduit for the fluid. In operation, each measuring electrode forms one plate of a capacitor whose dielectric is the liner and whose other plate is the fluid being metered, the electrodes acting as a capacitance-sensor to detect the voltage induced in the fluid when it intercepts a magnetic field whose lines of flux are normal to the flow direction.