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:
Feb. 15, 1994
Filed:
Feb. 11, 1993
Applicant:
Inventor:
Jeffrey B Gotthelf, Charleston, SC (US);
Assignee:
ITT Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137340 ; 137375 ; 13750518 ;
Abstract
The valving element is positively tied to the diaphragm, through a diaphragm-carried insert which has a flow-accommodating groove formed therein to facilitate instant outlet pressure following a gas supply shut off. Too, the valving element cooperates with internal structures to define spaced apart seating and sealing areas which boundary between high and low pressures of the natural gas, and the magnitudes and directions of the differential pressures are balanced at the seating and sealing areas, and maintained in balance regardless of how inlet and outlet gas pressures vary.