Patent · US Expired

Packaging machine and method

US4969310A · kind A · utility

33Cited by
13References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 12, 1989
Grant dateNov 13, 1990
Priority date
Expiry dateMay 12, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65B43/267
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A machine and method for loading bags of a preformed web of side interconnected bags. The top of a bag web is slit open and then fed between a pair of belt conveyors. The tops of the bags projecting over the conveyors belts are folded down over them and then gripped by a second pair of conveyor belts. At a load station the belts are spread to open bags sequentially and one at a time for loading. After loading a bag is separated from the web and fed through a sealing section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.