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. 26, 1995
Filed:
Mar. 01, 1993
Gaylerd M Lieder, Crystal, MN (US);
Bemis Company, Inc., Minneapolis, MN (US);
Abstract
Two bag pick up assemblies and a feed assembly pick up two bags at a time from two bag stacks and direct the bags to a bag positioner assembly. The positioner assembly moves the bags to a nearly vertical position in longitudinal alignment to be conveyingly engaged at the top edge portions and conveyed beneath hopper spout assemblies whereat hanger assemblies clampingly engage bag top corner portions and dependingly support the bags. Bag top side wall portions of the clamped bags extending above the members are spread by vacuum cups on conveyor members. Spout jaws move downwardly between the spread side wall portions. The conveyor members move from a chain closed position to a chain open position as product is discharged through the opening jaws to open the clamped bags. The hanger assemblies move the corner portion to close the filled bags and the conveyor members move to their chain closed position to conveyingly engage the filled bags and in conjunction with the bottom conveyor convey the filled bags to transfer stations conveyors which are driven at a slower rate of speed than the conveyor members when the conveyor members are being driven and out of their chain open position and at the same higher rate of speed as the conveyor member when the conveyor members are being driven.