Patent ID: 7083042
Filing Date: 2006-08-01
Classification: B65G,Y10S

Abstract:
1. A sealess conveyor drive for moving a conveyor member to move objects along the conveyor member comprising: a driven member for operative connection to the conveyor member; a pair of opposed pneumatic assemblies operatively connected to said driven member, each of said pneumatic assemblies having an air inlet, wherein one of said pneumatic assemblies acts to drive said driven member in one direction to advance objects supported on the conveyor member and the other of said pneumatic assemblies acts to drive said driven member in a second direction opposite to said first direction such that the conveyor member moves relative to the objects supported thereon; and a control valve that is operatively connected to a source of pressurized air and in fluid communication with said air inlet of each of said pneumatic assemblies, wherein said control valve operates to sequentially cycle pressurized air to alternating ones of said pneumatic assemblies so as to induce repeated, rectilinear movement of the conveyor member.