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. 19, 2004
Filed:
Apr. 28, 2003
Nils T. Ottestad, Tonsberg, NO;
Framo Engineering AS, Bergen, NO;
Abstract
A method and a regulating valve for maintaining a fluid pressure within a defined volume ( ), and simultaneous registering of discharge of fluid from the volume as a result of leakage or consumption. The fluid is supplied from a pressure regulating valve ( ) provided with a means ( ) which opens for the supply of fluid to the volume ( ) when the pressure therein has sunk below a first value (P1), and which shuts off the fluid supply when the pressure in the volume ( ) has achieved a preset second value (P2) which is substantially higher than the first value (P1). Thus, after each opening of the regulating valve ( ) there occurs a distinct pressure increase at the valve outlet. This pressure increase is registered as a pressure pulse, and the frequency of delivered pressure pulses is monitored and utilised as a measure of occurring leakage and/or consumption of the supplied fluid.