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. 26, 2018
Filed:
Sep. 08, 2009
Applicant:
John R. Webster, Derby, GB;
Inventor:
John R. Webster, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/36 (2006.01); F16K 1/42 (2006.01); F16K 31/00 (2006.01);
U.S. Cl.
CPC ...
F16K 1/36 (2013.01); F16K 1/42 (2013.01); F16K 31/003 (2013.01);
Abstract
A valve arrangement including a valve body and a valve seat each having an opposed surface, the valve arrangement also includes a high-frequency cyclic actuator to move the valve body with respect to the valve seat to bring the opposed surfaces into and out of abutment, characterised in that the opposed surface of at least one of the valve body and the valve seat includes a resiliently displaceable surface.