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:
Nov. 11, 1980
Filed:
Dec. 22, 1977
Applicant:
Inventor:
Peter J Gibson, Guildford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74866 ; 74687 ; 74861 ; 74865 ;
Abstract
A transmission system is disclosed in which a stepped-ratio system having a conventional gearbox is combined with a short range, smoothly adjustable-ratio system to give a continuous range of transmission ratios through and beyond the fixed ratio steps of the gearbox. An arrangement is described in which all the variable parameters of the system are commanded by an electrically operated control system in response to a single demand signal from an operator.