Rhonda J. Verploegen - Sparta MI,
Frank W. Veit - Spring Lake MI,
Brian J. Feenstra - Hudsonville MI,
Gerald A. Brouwer - Grandville MI,
Dematic Corp. - Grand Rapids MI
19837002, 19837001, 198456, 19845701, 198458, 198890, 1988901
A positive displacement sorter apparatus and method includes providing a plurality of interconnected slats defining an endless web, an upper run of the web defining a conveying surface. A plurality of pusher shoes are provided, each moving along at least one of the plurality of slats to laterally displace articles on the conveying surface. Each of the pusher shoes includes a diverting portion extending above the conveying surface. The diverting portion includes a diverting surface and a stop surface. The diverting surface contacts an article and laterally displaces that article. A lifting force is applied by the diverting surface to a portion of the article being diverted. The stop surface limits movement of the article relative to the pusher shoe.