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:
Jul. 31, 2018
Filed:
Aug. 05, 2016
Applicant:
Claverham Limited, Bristol, Avon, GB;
Inventors:
Assignee:
CLAVERHAM LTD., Bristol, Avon, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 13/04 (2006.01); F16K 11/07 (2006.01); F16K 31/60 (2006.01); F16K 31/52 (2006.01); F15B 18/00 (2006.01); F15B 13/12 (2006.01);
U.S. Cl.
CPC ...
F15B 13/0402 (2013.01); F15B 18/00 (2013.01); F16K 11/07 (2013.01); F16K 11/0716 (2013.01); F16K 31/52 (2013.01); F16K 31/602 (2013.01); F15B 13/12 (2013.01); F15B 2211/324 (2013.01); F15B 2211/41581 (2013.01);
Abstract
A spool for a hydraulic spool valve, comprising: a pressure chamber for connecting a pressure line to a hydraulic cylinder; at least one return chamber for connecting the hydraulic cylinder to a reservoir; and an actuator slot for receiving a drive lever; wherein the spool further comprises a fluid path connecting said pressure chamber to said actuator slot and a pressure plate movably mounted in the slot such that in use it is disposed between the fluid path and the drive lever.