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:
Oct. 23, 1984
Filed:
Aug. 20, 1981
Applicant:
Inventor:
Frederic W Pollman, Ames, IA (US);
Assignee:
Sundstrand Corporation, Rockford, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
60444 ; 60450 ; 60452 ;
Abstract
A control for a variable displacement motor and operable in either direction of rotation of the motor (10) and which acts on a servo cylinder (55) to set the position of a wash plate (50). The control includes a signal-setting valve (65) operable in response to the rate of fluid flow through the motor by sensing a pressure drop in a closed circuit line to the motor to set a variable control signal and the variable control signal is applied to the displacement-setting mechanism (56,55) for the motor to have a decrease in motor displacement related to an increase in the rate of fluid flow through the motor.