Claims
- 1. A method of packaging and unpackaging plastic bags comprising the steps of:(a) stacking a plurality of plastic bags to form a stack with legs of a wire bracket passing through holes in said bags; (b) placing a plurality of said stacks automatically in a transport container in a form of a cardboard box open at a top and having side walls with said legs of the brackets of said stacks pointing outwardly toward at least one of said side walls; (c) for use of said bags, automatically removing said stacks from said container while maintaining an orientation of said legs in step (b); and (d) automatically introducing said stacks into a bag-filling machine, positions of legs of said wire brackets in said box being detected at least in part optically and a robot hand for transferring the stacks being controlled by the detection.
- 2. A method of packaging and unpackaging plastic bags comprising the steps of:(a) stacking a plurality of plastic bags to form, a stack with legs of a wire bracket passing through holes in said bags; (b) placing a plurality of said stacks directly one on top of another in a cardboard box open at a top and having side walls with said legs of the brackets of said stacks pointing outwardly toward at least one of said side walls substantially perpendicularly thereto so that said cardboard box receives a multiplicity of said stacks, said stacks being placed in said box in layers with the legs of the wire brackets of alternate stacks oriented in opposite directions; and (c) for use of said bags, removing said stacks from said container while maintaining an orientation of said legs as in step (b).
- 3. The method defined in claim 2 wherein said stacks are deposited in said box automatically.
- 4. The method defined in claim 3 wherein said stacks are removed from said box automatically.
- 5. The method defined in claim 2 wherein said stacks are removed from said box automatically.
- 6. The method defined in claim 5, further comprising the step of automatically introducing said stacks into a bag-filling machine.
Priority Claims (1)
Number |
Date |
Country |
Kind |
199 12 274 |
Mar 1999 |
DE |
|
CROSS REFERENCE TO RELATED APPLICATION
This application replaces provisional application 60/125,790 filed Mar. 23, 1999.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
3738482 |
Cwikla |
Jun 1973 |
A |
3777930 |
Ericson et al. |
Dec 1973 |
A |
4541226 |
Nausedas |
Sep 1985 |
A |
5465845 |
Norby et al. |
Nov 1995 |
A |
Foreign Referenced Citations (2)
Number |
Date |
Country |
38 34 115 |
Mar 1990 |
DE |
198 39 144 |
Apr 2000 |
DE |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/125790 |
Mar 1999 |
US |