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:
Apr. 13, 2004
Filed:
May. 16, 2002
Bernd Schepperle, Constance, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A transmission with a drive shaft ( ), an output shaft ( ) mounted coaxially thereto and a countershaft ( ), there being provided a first constant gear pair (K ) that can transmit the rotation of the countershaft ( ) to the output shaft ( ) and wherein respective toothed gear pairs are allocated to the individual gears, the gear pairs optionally transmitting the rotation of the drive shaft ( ) to the countershaft ( ). A second constant gear pair (K ) can transmit the rotation of the countershaft ( ) to the output shaft ( ). The toothed gears ( - - - - - - ) of a gear of a first group of gears can be optionally select to be operative between the drive shaft ( ) and the countershaft ( ), the rotation of the countershaft ( ) being transmissible via the first constant air (K ) to the output shaft ( ). After switching to the second constant gear pair (K ), a gear of a second group of gears, via the second constant gear pair (K ) can be switched to the output shaft ( ) by selecting a toothed gear pair ( - - ) of a gear of the first group and transmitting the rotation of the countershaft ( ) via the second constant gear pair (K ).