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:
Dec. 29, 1992
Filed:
Jan. 18, 1990
Applicant:
Inventor:
Takao Wakabayashi, Osaka, JP;
Assignee:
Nakanishi Metal Works Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61C / ;
U.S. Cl.
CPC ...
105 291 ; 105153 ; 104 93 ;
Abstract
A conveyor comprising a plurality of self-propelled carriers adapted to run along a rail, the rail having a first drive wheel bearing surface facing upward and a plurality of downward teeth formed at least at a gradient portion of the rail, each of the carriers having a first drive wheel rollable on the wheel bearing surface of the rail, a first electric motor for driving the first drive wheel, a gear meshable with the teeth of the rail and a second electric motor for driving the gear.