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.

Date of Patent:
Oct. 17, 2017

Filed:

Dec. 14, 2015
Applicant:

Harsco Technologies Llc, Fairmont, MN (US);

Inventor:

Kevin Hansen, Ludington, MI (US);

Assignee:

Harsco Technologies LLC, Fairmont, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B 27/00 (2006.01); B61F 99/00 (2006.01); B61C 17/04 (2006.01); B61D 15/00 (2006.01); E01B 27/16 (2006.01); F15B 13/043 (2006.01);
U.S. Cl.
CPC ...
E01B 27/00 (2013.01); B61C 17/04 (2013.01); B61D 15/00 (2013.01); B61F 99/00 (2013.01); E01B 27/16 (2013.01); F15B 13/0435 (2013.01); F15B 2211/40507 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/6355 (2013.01);
Abstract

A rail maintenance vehicle includes a frame, a workhead, an actuator, a pilot valve, and a throttling valve. The frame includes wheels that travel along rails. The actuator extends and retracts the workhead with respect to the frame. The pilot valve receives a fluid and controls the flow of the fluid to at least one output. The throttling valve adjusts a pressure of the fluid at an output relative to a pressure of the fluid at an input. The pilot valve and the throttle valve are coupled such that the fluid travels through the pilot valve and the throttling valve to cause the workhead to be extended or retracted.


Find Patent Forward Citations

Hansen, Kevin. (2017). Vertical ride quality system for a rail vehicle (U.S. Patent No. 9790644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9790644

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

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