Patent ID: 6814216
Filing Date: 2004-11-09
Classification: B07C,B65G

Abstract:
A positive displacement sorter apparatus comprising a plurality of interconnected slats defining an endless web, said web having upper and lower runs and transition portions between said upper and lower runs, said upper run of said web defining a conveying surface, a plurality of pusher shoes each gliding along at least one of said plurality of slats to laterally displace articles on said conveying surface, wherein each of said slats has an outer surface including upper, lower, front and rear surface portions and wherein one of said front and rear surface portions is a generally concave surface and the other of said front and rear surface portions is a generally convex surface, wherein generally constant-width gaps are maintained between said front and rear surface portions of adjacent ones of said slats as said slats move throughout said endless web including through said transition portions.