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:
Sep. 10, 1996
Filed:
Oct. 06, 1994
Applicant:
Inventors:
Kenneth W Hummel, Coon Rapids, MN (US);
David S Warwick, Mounds View, MN (US);
Assignee:
FMC Corp., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198737 ; 198743 ; 89 46 ;
Abstract
The high cycle rate transfer device invention disclosed herein enables a continuous conveyance of material in a limited space envelope. Particularly, a roller chain is driven by a center sprocket with outboard rollers on the chain running in a track so that material can be moved in both directions. Pawls on each end of the chain are used to urge the material. Each time the chain is moved, a pawl folding and unfolding mechanism maintains the pawls in a proper position and timed relation to each other.