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:
Apr. 17, 2018
Filed:
Jan. 14, 2016
Applicant:
Mks Instruments, Inc., Andover, MA (US);
Inventor:
Gordon Hill, Arlington, MA (US);
Assignee:
MKS Instruments, Inc., Andover, MA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/22 (2006.01); F16K 1/226 (2006.01);
U.S. Cl.
CPC ...
F16K 1/2261 (2013.01); F16K 1/226 (2013.01); F16K 1/2263 (2013.01); F16K 1/2265 (2013.01); F16K 1/2266 (2013.01);
Abstract
A valve assembly having a valve housing, the valve housing defining a passageway. A flapper valve arranged within the passageway is coupled to a rotatable valve shaft. A flexible wall, sealed along opposed edges to the valve housing, is controllable to at least two positions. The first position seals against the flapper valve and the second position releases the flapper valve allowing for ready movement of the valve.