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:
Feb. 19, 2008
Filed:
Apr. 16, 2004
Shigetomi Kumon, Ehime, JP;
Shigetomi Kumon, Ehime, JP;
Asahi Corporation, Ehime, JP;
Abstract
This invention provides an oil-hydraulic vehicle whose driving force can be adjusted finely and which can be run smoothly and comfortably. The oil-hydraulic vehicle comprises a wheel-driving meansfor driving a wheel, which includes an oil-hydraulic motorto drive the wheeland a meansfor controlling the rotational frequency of the oil-hydraulic motor. The oil-hydraulic motorincludes an output shafton which the wheelis mounted and a plurality of oil chambers-. Each oil chamber contains (i) a driving cogwheelwhich is mounted on, and drives, the output shaftand (ii) a driven cogwheelwhich engages with the driving cogwheel. The meansfor controlling the rotational frequency of the oil-hydraulic motorincludes a housingwith a circular rotor chamberin it and a rotorfitted in the circular rotor chamberfor free rotation.