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:
Sep. 21, 2004
Filed:
Jun. 26, 2002
Hans-Heinrich Welschof, Rodenbach, DE;
GKN Lobro GmbH, , DE;
Abstract
A longitudinal plunging unit for a shaft assembly used for torque transmitting purposes. The unit includes a profiled sleeve ( ) with circumferentially distributed, longitudinally extending first ball grooves ( ), a profiled journal ( ) with circumferentially distributed, longitudinally extending second ball grooves ( ), balls ( ) which are arranged in groups of balls in pairs of first and second ball grooves ( ), and a ball cage ( ) which is positioned between the profiled sleeve ( ) and the profiled journal ( ) and axially fixes the balls in their positions relative to one another, wherein in the region of the ball grooves ( ), the profiled sleeve ( ) and the profiled journal ( ) include the same torsional stiffness, such that, during the introduction of torque, they are subject to the same angles of torsion.