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:
May. 14, 2019
Filed:
Oct. 19, 2016
Applicant:
Warner Electric Technology Llc, Braintree, MA (US);
Inventor:
Jared Ret Zammuto, Caledonia, IL (US);
Assignee:
Warner Electric Technology LLC, Braintree, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 14/04 (2006.01); F15B 13/02 (2006.01); F04C 2/18 (2006.01); F15B 15/18 (2006.01); F15B 13/01 (2006.01); F15B 13/04 (2006.01);
U.S. Cl.
CPC ...
F04C 14/04 (2013.01); F04C 2/18 (2013.01); F15B 13/01 (2013.01); F15B 13/022 (2013.01); F15B 13/027 (2013.01); F15B 13/028 (2013.01); F15B 13/0401 (2013.01); F15B 15/18 (2013.01); F15B 2211/2053 (2013.01);
Abstract
A fluid pump for a linear actuator is provided. The pump causes a rod in the actuator to extend or retract by controlling the flow of fluid to and from portions of a fluid chamber on either side of a piston disposed within the fluid chamber and supporting the rod. The pump includes a valve structure that enables the pump to redistribute fluid obtained from one portion of the fluid chamber on one side of the piston to the other portion of the fluid chamber on the other side of the piston without first returning the fluid to a fluid reservoir thereby increasing the efficiency of the pump.