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:
Apr. 14, 2009
Filed:
Jun. 24, 2004
Mandi R. Ferleyko, Metamora, IL (US);
Scott A. Chockley, Washington, IL (US);
Ronald D. Shinogle, Peoria, IL (US);
Scott F. Shafer, Morton, IL (US);
Jianhua Zhang, Dunlap, IL (US);
Mandi R. Ferleyko, Metamora, IL (US);
Scott A. Chockley, Washington, IL (US);
Ronald D. Shinogle, Peoria, IL (US);
Scott F. Shafer, Morton, IL (US);
Jianhua Zhang, Dunlap, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A pump has a housing defining at least one pumping chamber, and a plunger slidably disposed within the at least one pumping chamber. The plunger is movable between a first and second spaced apart end positions to pressurize a fluid. The pump also has a driver operatively engaged with the plunger to move the plunger between the first end position and the second end position. The pump further has a high-pressure outlet in fluid communication with the at least one pumping chamber. The high pressure outlet passes pressurized fluid during movement of the plunger between the first end position and the second end position. The passing of pressurized fluid through the high-pressure outlet terminates before the plunger completes movement from the first end position to the second end position.