logo

For the Inventor, By the Inventor

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 7204185 B1

PDFFull Text
Date of Patent:
Apr. 17, 2007

Filed:

Apr. 29, 2005

Hydraulic system having a pressure compensator

Applicants:

Pengfei MA, Naperville, IL (US);

Gene Richard St. Germain, Plainfield, IL (US);

Jiao Zhang, Naperville, IL (US);

Aleksandar M. Egelja, Naperville, IL (US);

Robert Scot Lehmann, Dunlap, IL (US);

Michael A. Sorokine, Naperville, IL (US);

Inventors:

Pengfei Ma, Naperville, IL (US);

Gene Richard St. Germain, Plainfield, IL (US);

Jiao Zhang, Naperville, IL (US);

Aleksandar M. Egelja, Naperville, IL (US);

Robert Scot Lehmann, Dunlap, IL (US);

Michael A. Sorokine, Naperville, IL (US);

Assignees:

Caterpillar Inc, Peoria, IL (US);

Shin Caterpillar Mitsubishi Ltd, , JP;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner

Primary Examiner:

Michael Leslie

Int. Cl.
CPC ...
F15B 13/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A hydraulic system having a source of pressurized fluid and a fluid actuator with a first chamber and a second chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber and a second valve configured to selectively fluidly communicate the source with the second chamber. The hydraulic system also has a supply passageway and a signal passageway each disposed between the first and second valves in parallel. The hydraulic system also has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first and second valves. The hydraulic system further has a fluid passageway disposed between the supply and signal passageways to fluidly communicate the supply and signal passageways.

Find Patent Forward Citations

Ma, Pengfei. (2007). Hydraulic system having a pressure compensator (U.S. Patent No. 7204185). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7204185

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

Loading…