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:
Feb. 23, 1988
Filed:
Apr. 15, 1985
Applicant:
Inventors:
Rodger T Lovrenich, Santa Teresa, NM (US);
John H Brems, Boca Raton, FL (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; B60K / ; F16H / ;
U.S. Cl.
CPC ...
74861 ; 74335 ; 74342 ; 408-9 ; 409231 ;
Abstract
A shiftable transmission drive with assured input-output relationship includes a drive motor-transmission mechanism wherein a drive motor drives an output shaft at different rates through a shiftable transmission, and wherein the output shaft is always connected with the drive motor through the shiftable transmission. The output shaft is thus always under control and its position precisely known. The shift position of the gears is known. Shifting is directed at predetermined positions by a microprocessor when the transmission is stopped or at low speeds of rotation. The drive is a direct drive or alternatively a gear ratioed drive.