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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.:

US 12320368 B1

PDFFull Text
Date of Patent:
Jun. 03, 2025

Filed:

Jul. 26, 2021

Ride control for work machines

Applicant:

Danfoss A/s, Nordborg, DK;

Inventors:

Roger D. Lowman, Simpsonville, SC (US);

Chad Anthony Larish, Rochester, MN (US);

Stephen Smith, Nordborg, DK;

Sam Newbauer, St. Paul, MN (US);

Assignee:

DANFOSS A/S, Nordborg, DK;

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Kenneth Bomberg

Assistant Examiner:

Daniel S Collins

Int. Cl.
CPC ...
F15B 1/04 (2006.01); B66F 9/22 (2006.01); E02F 9/22 (2006.01); F15B 1/26 (2006.01); F15B 11/08 (2006.01); F15B 13/02 (2006.01); F15B 13/04 (2006.01);
U.S. Cl.
CPC ...
F15B 1/04 (2013.01); B66F 9/22 (2013.01); E02F 9/2207 (2013.01); E02F 9/2217 (2013.01); E02F 9/226 (2013.01); E02F 9/2267 (2013.01); E02F 9/2271 (2013.01); E02F 9/2285 (2013.01); F15B 1/26 (2013.01); F15B 11/08 (2013.01); F15B 13/024 (2013.01); F15B 13/0401 (2013.01); E02F 9/2296 (2013.01);
Abstract

A hydraulic system can include a hydraulic actuator including a piston rod slidably disposed within a housing having a base-side port and a rod-side port, a hydraulic pump, a hydraulic reservoir, an accumulator, a first control valve operable to selectively control flow from the pump to the base-side port and from the base-side port to the reservoir, a second control valve operable to selectively control flow from the pump to the rod-side port and from the rod-side port to the reservoir, a third control valve operable to selectively allow flow between the base-side port and the accumulator, and a controller for operating the hydraulic system and including a ride control mode in which damping is provided to the hydraulic actuator by operation of the first, second, and third control valves.

Find Patent Forward Citations

Lowman, Roger. (2025). Ride control for work machines (U.S. Patent No. 12320368). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12320368

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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