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:
Jan. 16, 1996
Filed:
Feb. 07, 1992
Zenichi Ishimoto, Tokyo, JP;
Nikko Co., Ltd., Tokyo, JP;
Abstract
An improved radio-controlled track-driven vehicle comprises an innovative belt drive structure in which the rear wheels engage with the belt in positive drive, and the front wheels engage with the belt in frictional drive. According to one embodiment of the invention, the drive belt has taller central teeth that are received within a central groove of the front and rear wheels, and shorter lateral teeth that mesh with complementary toothed regions of the rear wheels and frictionally contact corresponding smooth cylindrical surfaces of the front driven wheels. In another embodiment of the invention, the belt teeth extend transversely across most of the width of the belt, with alternate teeth having disposed thereon a taller central tooth to be received within the wheel grooves.