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:
May. 19, 1992
Filed:
Jan. 29, 1991
Applicant:
Inventor:
Neil E Russell, Bloomfield Hills, MI (US);
Assignee:
Ross Operating Valve Company, Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F15B / ;
U.S. Cl.
CPC ...
13759616 ; 91424 ; 91448 ;
Abstract
A safety monitoring system is provided for a pneumatic control system having a double safety valve arrangement. The monitoring system is adapted for preventing further operation of the control system in response to a malfunction of either the double safety valve or the monitoring system itself. The monitoring system preferably includes constantly dynamic monitor valves, and also preferably includes a damper feature for substantially preventing premature, undesired shutdowns of the control system in accordance with predetermined system parameters.