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:
Mar. 17, 1992
Filed:
Mar. 06, 1990
Applicant:
Inventors:
Walter Knoess, Fussen, DE;
Ulrich Wollenteit, Munich, DE;
Assignee:
Sinterstahl Gesellschaft, Fuessen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
1921 / ; 192 / ; 298933 ; 29463 ; 29469 ;
Abstract
A process is provided for the manufacture of a gearshifting or sliding sleeve for the forced synchronization of manually shifted automotive transmissions in which the sleeve is manufactured in the form of two substantially symmetrical partial units and is then processed further into a complete sleeve by means of customary joining methods. This process permits sleeves to be manufactured by means of comparatively low-cost powder metallurgical methods through pressing and sintering, and thus makes it possible to dispense with very cost-intensive machining methods.