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. 29, 1987
Filed:
Aug. 06, 1984
Applicant:
Inventor:
Charles F Stearns, Longmeadow, MA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
137 84 ; 137 82 ; 137486 ;
Abstract
A pressure regulator (75) of a flow control system includes a pair of orifices (140 and 145), the effective areas of which are controlled by a pair of flexible closures (150 and 155) unidirectionally stiffened against fluid flow thereagainst. The closures remain flexible in an opposite direction so that when one of the closures is fouled with contaminants, it does not impede the operation of the remaining closure.