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:
Apr. 03, 1984
Filed:
Sep. 23, 1982
Kenneth P Hansen, Enfield, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A flow control device includes metering and pressure regulating elements (70 and 95) disposed one within the other and movable independently of one another for accurate maintenance of a constant pressure drop across the metering valve at a fixed temperature. Bimetallic elements (145) adjust the position of the pressure regulating element in response to the temperature of the fluid to compensate for variations therein. The pressure regulating valve element is grounded to the housing (10) of the flow control device in part for ease in adjusting the preload of a spring (130) which balances the pressure regulating element against fluid pressures applied to opposite ends thereof. The metering element is positionable by the controlled application of servo fluid to a single end thereof.