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:
Jun. 15, 1993
Filed:
Apr. 23, 1992
Applicant:
Inventor:
Tommy L Gray, Dallas, TX (US);
Assignee:
Span Instruments, Inc., Plano, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137312 ; 13750514 ; 13750542 ;
Abstract
A method and apparatus for a pressure regulator to control the flow of gases through the regulator and control the escape of gases from the regulator base to the regulator bonnet. The pressure regulator contains a flexible rubber diaphragm contacting a flexible diaphragm plate. The flexible diaphragm plate flexes upward or downward in response to changes in the control pressure and engages a pintle valve that controls the entry of gases to the pressure regulator. A system of chambers and passages controls the escape of gases by funneling escaped gases from a catch chamber to an exhaust port.