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:
Jul. 04, 1989
Filed:
Jan. 22, 1988
Applicant:
Inventors:
Bernd Kempf, Althornbach, DE;
Heinrich Scheid, Blieskastel, DE;
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; B60K / ; F16D / ;
U.S. Cl.
CPC ...
192-9 ; 192 / ; 192 / ;
Abstract
A change speed gearbox for a combine or the like has a main clutch on its input shaft and a shift collar shiftable into alternate positions from a neutral position to establish different driving ratios in the gearbox. An electro-magnetic brake is engageable with the input shaft and is actuated only when the shift collar is in its neutral position and the clutch is disengaged. The brake circuit includes a relay switch that automatically opens a predetermined time after it closes, so that power is supplied to the brake only for a limited period when the clutch is disengaged and the gearbox is in neutral.