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:
Jan. 19, 2010
Filed:
Jul. 31, 1987
Applicant:
Trevor S. Smith, Sutton Coldfield, GB;
Inventor:
Trevor S. Smith, Sutton Coldfield, GB;
Assignee:
Goodrich Control Systems Limited, Bedfordshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K 1/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluid flow control system includes a valve, in which a control element regulates flow through a metering orifice. A further control element regulates flow through an orifice downstream of the orifice and is responsive to the pressure downstream of the orifice and to an opposing control pressure on a line. The element is positioned in accordance with the pressure in a chamber controlled by an electrical valve. The pressure in line is set to provide a required pressure drop across the orifice.