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:
Mar. 22, 1977
Filed:
Feb. 03, 1976
Walter T Nelson, Frederick, MD (US);
American Chain & Cable Company, Inc., Bridgeport, CT (US);
Abstract
An accumulating roller conveyor comprising a frame, a plurality of longitudinally spaced transversely extending drive rollers rotatably mounted on the frame, a drive extending longitudinally of the frame, and a spring clutch interposed between each drive roller and the drive. A driven roller is rotatably mounted on the frame upstream of each drive roller and an endless belt interconnects the driven and drive roller such that when the drive roller is rotated, the driven roller is rotated. A sensing roller is rotatably mounted on the frame upstream and adjacent each driven roller, and a one-way clutch is provided on each sensing roller. An endless belt interconnects the driven roller and the one-way clutch such that when the driven roller is rotated, the sensing roller is rotated. An endless belt interconnects the sensing roller and the drive roller upstream therefrom such that when a downstream sensing roller is stopped from rotating by the presence of an article thereon, the spring clutch of the drive roller upstream therefrom will be disengaged to stop the drive roller and, in turn, stop the driven roller upstream therefrom, and when a succeeding article engages the previously interrupted article, the upstream sensing roller will stop initiating a sequence to interrupt the drive and driven rollers further upstream, and when the first mentioned article is released, the sensing roller thereunder is permitted to rotate so that the spring clutches and one way clutches are successively engaged upstream.