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. 05, 1991
Filed:
Oct. 27, 1989
Applicant:
Inventor:
Shigeru Yonezawa, Tokyo, JP;
Assignee:
Yonezawa Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63H / ; A63H / ; A63H / ;
U.S. Cl.
CPC ...
446136 ; 446129 ; 446444 ; 446468 ;
Abstract
A toy vehicle travels on the surface of a travel board, following a path of magnetically attractive material. The toy vehicle has a single drive wheel located centrally on the bottom of the vehicle's body. The center of gravity of the vehicle resides substantially over the single drive wheel so that the vehicle is balanced. A magnet located in the front of the vehicle is attracted to the magnetic path on the travel board. The magnetic attraction directly steers the vehicle about the central drive wheel along the path.