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:
Apr. 12, 2011
Filed:
Jul. 23, 2009
Takahisa Ando, Osaka, JP;
Toshihiko Takashima, Osaka, JP;
Takeshi Kondo, Osaka, JP;
Michio Oitaka, Osaka, JP;
Takahisa Ando, Osaka, JP;
Toshihiko Takashima, Osaka, JP;
Takeshi Kondo, Osaka, JP;
Michio Oitaka, Osaka, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
Aspects of the invention provide a hoisting and lowering driving engagement multi-row chain in which the weight of the chain is balanced across the chain width direction so as to improve the load balance. This allows the weight of articles to be hoisted and lowered more stably hoisted and at higher positions, and results in an improvement of endurance of the chain, reduction of driving noise, miniaturization of the chain size, while the biasing or deflecting of intermediate tooth plates and inner tooth plates in the chain width direction is suppressed.