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:
Jun. 12, 2001
Filed:
Mar. 26, 1999
Tsubakimoto Chain Co., Osaka, JP;
Abstract
A speed-increasing and accumulating conveyor chain includes a large-diameter mounting roller and small-diameter traveling rollers that are loosely fitted concentrically around a connecting pin through over an oil-impregnated sintered oil bushing concentrically. A lubricating oil is gradually discharged from the oil-impregnated sintered bushing, so that the chain can travel with a small chain-driving force as a whole while stably maintaining low friction coefficients at the loosely fitted portions between the connecting pin, the bushing, the mounting roller and the traveling rollers. The chain can, therefore, perform the speed-increasing function and the accumulating function by means of the mounting roller and the traveling rollers.