Claims
- 1. A pad of tear-off bags or like packaging of thermoplastic synthetic plastic film and constituted of a stack of bag sections comprised of said film, said sections each corresponding to a respective bag, each bag section comprising a front wall and a back wall coextensive with the front wall, each section including a tear-off portion and a transverse suspension portion, the suspension portion having hanger holes, the portions of each section being separable along a line of perforations through both said walls, the said sections being connected at the suspension portions thereby to form the pad with a pad suspension portion, with the improvement comprising:
- a continuous padding welding seam extending in over substantially the entire width of each suspension portion whereby the sections are connected into a pad unit.
- 2. A pad as described in claim 1, wherein
- the suspension portion region between the padding weld seam and the perforation line is free of film discontinuities.
- 3. A pad as described in claim 1, wherein
- each bag section is closed at its bottom by a severing welding type weld.
- 4. A pad as described in claim 1, wherein
- the padding welding seams are located in the space between the perforation line and the hanger holes of each said section.
- 5. A pad as described in claim 1, wherein
- said padding welding seams are located along the free edge of each respective suspension portion.
- 6. A pad as described in claim 1, wherein
- said padding welding seams are located between the hanger holes and the free edge of each respective suspension portion.
- 7. A pad as described in claim 1, wherein
- each said suspension portion has a line of spaced pin punctures running across the width thereof.
- 8. A pad as described in claim 1, with the further improvement comprising:
- in each bag section a front wall having a central incision dividing the central part of the tear-off bag portion from the respective suspension portion,
- said incision having a flat bottomed U-shape, and the perforation line extending over the entire width of the bag section and crossing through both limbs of the U-shaped incision, the bottom edge of the incision being spaced parallel to the perforation line;
- whereby a bag torn from the suspension portion has, in one bag wall edge at its mouth, a recess corresponding to the contour of the U-shaped incision beneath the perforation line and a projecting flap corresponding to the recess remains on the suspension portion.
- 9. A pad of tear-off bags constituted of a stack of thermoplastic synthetic film bag sections each corresponding to a respective bag,
- each bag section comprising a front wall and a back wall coextensive with the front wall and having an upper suspension portion and a tear-off bag portion separable therefrom along a line of perforations,
- the said sections being connected at the suspension portions thereby to form the pad with a pad suspension portion, the pad suspension portion being provided with at least one hanger aperture,
- with the improvement comprising:
- in each bag section a front wall having a central incision dividing the central part of the tear-off bag portion from the respective suspension portion, and
- the line of perforations through both said walls running into the incision from each side of the section;
- the sections being connected to one another by a padding weld in the suspension portions, and
- each being closed across its bottom to afford a closed bag bottom.
- 10. A pad as described in claim 9, wherein
- the incision has an inverted arch shape, and
- the perforation line intersects both side limbs of the said incision.
- 11. A pad as described in claim 10, wherein
- a bottom edge of the U-shaped incision is spaced parallel to the perforation line,
- whereby a bag torn from the suspension portion has, at its mouth a recess on one bag wall edge, corresponding to the contour of the arch shaped incision beneath the perforation line and a projecting flap corresponding to the recess remains on the suspension portion,
- 12. A pad as described in claim 9, wherein
- the said incision has a flat bottomed U-shape, and
- the perforation line extends over the entire width of the bag sections and crosses through both limbs of the U-shaped incision.
Priority Claims (7)
Number |
Date |
Country |
Kind |
2418233 |
Apr 1974 |
DT |
|
2443448 |
Sep 1974 |
DT |
|
2455322 |
Nov 1974 |
DT |
|
2141045 |
Aug 1971 |
DT |
|
2229728 |
Jun 1972 |
DT |
|
2233408 |
Jul 1972 |
DT |
|
2236523 |
Jul 1972 |
DT |
|
Parent Case Info
This is a continuation-in-part of copending patent application Ser. No. 282,193, filed Aug. 17, 1972, now U.S. Pat. No. 3,966,524, granted June 29, 1976.
US Referenced Citations (6)
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
282193 |
Aug 1972 |
|