Title:
TEAR-OFF CUSHIONS OF LOOSE FILL PACKING MATERIAL, AND MACHINE AND METHOD FOR MAKING THE SAME
Document Type and Number:
WIPO Patent Application WO2000059784
Kind Code:
A8
Abstract:
String of packing cushions (73) formed by two superposed layers of flexible plastic film sealed together along transversely extending lines to form a series of closed chambers, loose fill packing material (69) in the chambers (74), and perforations (75) in the film between the chambers defining tear lines by which the cushions can be separated. In certain disclosed embodiments, the string of cushions is made by positioning an elongated length of flexible plastic tubing (24) about a chute (22, 23), drawing a section of the tubing from the chute (33), introducing loose fill packing material through the chute into the section of the tubing which has been drawn from the chute, sealing the walls of the tubing together along transversely extending seal lines above the loose fill packing material to close the section and form a cushion (49, 51), perforating the tubing along a transversely extending tear line above the cushion (61), and repeating the process to form succesive cushions separated by tear lines.
More Like This:
Inventors:
FUSS GUNTER G
YAMPOLSKY VLADIMIR
YAMPOLSKY VLADIMIR
Application Number:
PCT/US2000/009650
Publication Date:
February 01, 2001
Filing Date:
April 07, 2000
Export Citation:
Assignee:
FREE FLOW PACKAGING INT INC (US)
International Classes:
B65B9/15; B65D81/05; (IPC1-7): B65B9/15; B65B9/20; B65B23/00; B65D81/03
Download PDF:
Previous Patent: REUSABLE, SEPARABLE, STRUCTURAL CONNECTOR ASSEMBLY
Next Patent: BANDING APPARATUS AND METHOD
Next Patent: BANDING APPARATUS AND METHOD