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:
Mar. 09, 1999
Filed:
Mar. 04, 1996
Applicant:
Inventors:
Mikio Saito, Iwata, JP;
Masaki Ito, Iwata, JP;
Assignee:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62K / ;
U.S. Cl.
CPC ...
180206 ; 180205 ; 318139 ;
Abstract
A number of embodiments of an electrically assisted manually powered bicycle that utilizes a control means whereby the operation of the electric power assist is curtailed when the battery voltage drops below a lower threshold value. Means are also provided to gradually reduce the electrical power assist prior to this so as to more smoothly transition to a nonpower assisted operation.