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:
Jul. 13, 1976
Filed:
Dec. 02, 1974
Applicant:
Inventor:
Hansjorg Dach, Friedrichshafen, DT;
Assignee:
Zahnradfabrik Friedrichshafen AG, Friedrichshafen, DT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; G05G / ;
U.S. Cl.
CPC ...
74869 ; 7475 / ;
Abstract
A hydraulic speed-changing system for an automotive transmission includes a clutch K2 actuatable by a control valve with associated damper which delays full operation of the clutch to smooth the cut-in. The same clutch is used in third gear and in reverse, its actuation being accompanied in the latter instance by that of a brake B2. Fluid pressure used to control the operation of this brake is also utilized to exert upon the control valve of clutch K2 a supplemental force reducing the delay period of the damper.