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:
Aug. 17, 2010
Filed:
Oct. 18, 2007
Rabie E. Khalil, Dunlap, IL (US);
Rabie E. Khalil, Dunlap, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A hydraulic transformer is disclosed. The hydraulic transformer may have a housing, and a first pumping mechanism disposed within the housing and rotated in a first direction by fluid pressure. The hydraulic transformer may also have a second pumping mechanism disposed within the housing and rotated by the first pumping mechanism in the first direction to increase the fluid pressure. The hydraulic transformer may further have a common shaft connecting the first and second reversible pumping mechanisms. One of the first and second pumping mechanisms may also be rotated in a second direction opposite the first by fluid pressure. The other of the first and second pumping mechanisms may also be rotated by the one of the first and second pumping mechanisms in the second direction to increase the fluid pressure.