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:
Oct. 25, 1988
Filed:
Sep. 28, 1987
Coleman Wood, Houston, TX (US);
Clarence W Carpenter, Houston, TX (US);
Other;
Abstract
A back pressure regulator system is set forth. In the preferred embodiment, a pressure to be regulated is input to a pressure transducer. The transducer forms a signal indicative of pressure applied through a regulator system which forms an output driving differential signal suitable for a motor. An electric motor is driven thereby and operates a gear box which in turn connects through a slip clutch and a linear motion clutch to advance or retract a needle valve stem. The stem is threadedly engaged with the body. It rotates to advance or retract a needle valve in a valve seat, and a connection is made from the pressure to be regulated through the needle valve to thereby control back presssure on the system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile