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:
Jun. 25, 1981
Friedrich Schreiner, Kehlen, DE;
Zahnradfabrik Friedrichshafen, AG., Friedrichshafen, DE;
Abstract
A gear-shifting mechanism for an automotive transmission or the like comprises a first power train with at least two cascaded ratio-changing couplers inserted between an input shaft and an output shaft, the cascaded couplers being bypassed by a second power train which is normally disengaged but is engageable during shiftovers to interconnect the two shafts with at least one step-down ratio different from any of the speed ratios that can be established by the first power train. The two or possibly more power trains may be constituted by planetary-gear assemblies. One or more of the cascaded couplers could be divided into parallel sections to be alternatively clutched in.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile