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 6668620 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 30, 2003

Filed:

Dec. 28, 2001
Applicant:
Inventors:

Mark R. Pond, Romeoville, IL (US);

Justin E. Arney, Muskego, WI (US);

George T. Fiala, Racine, WI (US);

Assignee:

Case Corporation, Racine, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 3/08 ; G01M 3/04 ;
U.S. Cl.
CPC ...
G01M 3/08 ; G01M 3/04 ;
Abstract

A test for hydraulic leakage in hydraulic components uses a rate testing device having two circuits including a filling circuit that fast-fills the component with hydraulic fluid and a leakage circuit that measures the leakage rate of fluid flow through the component. The filling circuit is first connected to the component to fill the component. Once full, flow through the filling circuit is blocked and flow to the component is provided by the leakage circuit, which includes a leakage flow rate measuring device. The filling circuit provides a flow rate that is at least twice the flow rate that is provided by the leakage circuit.


Find Patent Forward Citations

Pond, Mark. (2003). Test for hydraulic leakage (U.S. Patent No. 6668620). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6668620

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

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