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:
Nov. 12, 1991
Filed:
Oct. 31, 1990
Applicant:
Inventors:
John P Borcuch, Williamsville, NY (US);
Norman H White, East Amerst, NY (US);
Assignee:
Union Carbide Industrial Gases Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137 14 ; 137468 ; 137489 ;
Abstract
System and method for controlling process fluid flow to maintain a set delivery pressure at varying demand, including a fluid-loaded, self-operated main regulator and a method for providing the loading pressure therefor. The system also includes a flow restrictor for metering the loading fluid flow, a back-pressure regulator for controlling the loading fluid pressure, and a temperature-actuated regulator for venting loading fluid when the process fluid temperature varies from a selected range.