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:
Mar. 02, 1976
Filed:
Apr. 17, 1975
Applicant:
Inventor:
Julius Lerner, Broomall, PA (US);
Assignee:
Sun Oil Company of Pennsylvania, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137486 ;
Abstract
A system for controlling a pneumatic rising stem valve by a stepping motor is disclosed. A pressure regulator is connected to the stepping motor so that the air pressure applied to the valve can be varied according to the signals applied to the stepping motor.