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:
May. 02, 1995
Filed:
Apr. 01, 1993
Andrew B Gratton, Oshkosh, WI (US);
Anthony A Bachhuber, Oshkosh, WI (US);
LeRoy A Maxfield, Oshkosh, WI (US);
Jeffrey M Miller, Larsen, WI (US);
Oshkosh Truck Corporation, Oshkosh, WI (US);
Abstract
A system for shifting gears in an auxiliary transmission is provided. The system enables shifting between gears of an auxiliary transmission without stopping the vehicle and without requiring a clutch between drive-line components. The system is activated by the operator while the vehicle is moving and includes safety features that preclude downshifting when the vehicle is traveling above a predetermined speed. The system is fully compatible with automatic main transmissions. An electronic control system monitors the rotational velocities or frequencies of the input and output shafts for clutchless shifting while the vehicle is moving.