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:
Jan. 01, 1980
Filed:
Aug. 14, 1978
Applicant:
Inventor:
John D Malloy, Troy, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16H / ;
U.S. Cl.
CPC ...
192-33 ; 192-331 ; 1921 / ;
Abstract
A positive displacement hydraulic mechanism for controlling the engagement of a slipping clutch in parallel drive relationship with a torque converter. The hydraulic device is operable in response to the speed differential between the impeller (input) and turbine (output) of the torque converter to control fluid flow from one side of a single plate clutch thereby controlling the pressure differential across the plate of the clutch so that the engagement force of the clutch is controlled to maintain a fixed speed differential between the turbine and impeller.