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:
Jul. 02, 1991
Filed:
Jan. 24, 1990
John J Kilper, Fenton, MO (US);
Dennis Wiggers, Richmond Heights, MO (US);
Alvey Inc., St. Louis, MO (US);
Abstract
An endless flexible apron or carrier assembly includes a pair of parallel spaced endless drive chains connected by longitudinally spaced parallel cross tubes which slidably support a series of package transfer pushers. The drive chains are supported by parallel spaced elongated side frame members which also support one or more sets of modular crossover sender, receiver and switch units. The side frames have longitudinally spaced sets of holes for conveniently positioning the sets of units at longitudinally selectable locations. Each pusher has a load carrying roller and a smaller guide roller which engages long wearing guide surfaces on repositioning blocks and on the sender and receiver units, and the guide rollers also engage a multiple step divider block on the sender unit. The crossover units are connected by guide tracks with linear sections positioned at different angles, and the chains extend around sprockets mounted on end shafts which also support resilient disks for engaging the pushers carried by the cross tubes.