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:
Jun. 23, 1992
Filed:
Apr. 16, 1990
Yasuo Kita, Kyoto, JP;
Yoshihiko Nakakoji, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A hydrostatic transmission with a pair of pump/motor connected in a closed loop state by a pair of hydrostatic circuit. The hydrostatic transmission comprises a differential pressure detecting means which detects the differential pressure between the circuits and a displacement correcting means which, in case an operation to establish a neutral status has been carried out, controls the displacement volume of the pump/motor on the side where the pumping action is carried out toward a direction in which the magnitude of this differential pressure is held within a set range. In case the set range is set to a value with which a vehicle cannot run, the phenomenon of creep running will not occur.