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:
Nov. 01, 2016
Filed:
Dec. 14, 2012
Applicant:
Eaton Corporation, Cleveland, OH (US);
Inventors:
Assignee:
EATON CORPORATION, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 11/044 (2006.01); F16K 11/07 (2006.01); F15B 13/04 (2006.01);
U.S. Cl.
CPC ...
F16K 11/0712 (2013.01); F15B 13/0402 (2013.01); F16K 11/0708 (2013.01); Y10T 137/8671 (2015.04);
Abstract
A spool valve includes a body defining a bore and a positionable spool located within the bore. The spool includes a central body portion having a diameter and a number of sealing lands separated by the central body portion. Each sealing land has a diameter larger than the central body portion diameter. A plurality of flow-shaping rings are located between first and second sealing lands, and each comprise an intermediate diameter larger than the central body portion diameter and smaller than the sealing land diameter.