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:
Feb. 27, 2018
Filed:
Mar. 19, 2015
Applicant:
Pentair Residential Filtration, Llc, Glendale, WI (US);
Inventors:
David J. Averbeck, Dousman, WI (US);
George Shoemaker Ellis, Hudson, OH (US);
Assignee:
Pentair Residential Filtration, LLC, Glendale, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/32 (2006.01); F16K 1/52 (2006.01); F16K 11/07 (2006.01); C02F 1/00 (2006.01); C02F 1/469 (2006.01); F16K 37/00 (2006.01);
U.S. Cl.
CPC ...
F16K 11/0712 (2013.01); C02F 1/008 (2013.01); C02F 1/469 (2013.01); F16K 11/0716 (2013.01); F16K 37/0075 (2013.01); C02F 1/4691 (2013.01); C02F 1/4693 (2013.01); C02F 1/4695 (2013.01); C02F 2201/005 (2013.01); C02F 2201/46145 (2013.01); C02F 2209/02 (2013.01); C02F 2209/03 (2013.01); C02F 2209/05 (2013.01); C02F 2209/40 (2013.01); C02F 2301/043 (2013.01); Y10T 137/7761 (2015.04); Y10T 137/86493 (2015.04); Y10T 137/86694 (2015.04); Y10T 137/86879 (2015.04); Y10T 137/87249 (2015.04);
Abstract
Embodiments of the invention provide a control valve assembly that includes a piston slidably seated within a valve chamber and moveable between multiple positions to adjust a flow rate of fluid through the control valve assembly. The piston comprises flow zones and seal surfaces to define variable flow rates related to the position of the piston within the valve chamber and to selectively seal with the valve chamber.