Patent US4595389A successfully refreshed from Google Patents.
US4595389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stack of detachably-connected bags with punch-out handle-grip openings and process for making same
Assignee: Lemo M Lehmacher and Sohn GmbH Maschinenfabrik
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Filing: 1985-05-20
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Granted: 1986-06-17
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Expires: 2005-05-20
Abstract
Abstract A stack of detachably-connected, individually carryable bags of a plastic material, preferably plastic foil. Each bag has a front wall, a rear wall and an upper bag opening. The bag walls of each bag are provided with centrally positioned punch-out pieces positioned opposite each other adjacent the upper bag opening. The punch-out pieces may be removed by hand to form handle grips. The punch-out pieces of each of the bags in the ones of the bag walls that are on one and the same side of all of the bags in the stack are removed. Uniting the individual bags into a single stack without additional structural members is possible, when the punch-out pieces remaining in the stack and constructed as oblong perforations are interlocked with each other.
Inventors
- 👤 Hans Lehmacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:17
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/001; Y; Y10; Y10S; Y10S206/00; Y10S206/806; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
91 words
A stack of plastic foil bags having two bag walls and an upper bag opening, each of said bag walls being provided with a respective centrally positioned punch-out piece whose removal results in a handle grip opening positioned adjacent said upper bag opening of said bag, the punch-out piece of one of said bag walls of each bag being removed, the punch-out piece of each other wall of said bag remaining in the respective handle grip opening, the remaining punch-out pieces being bonded together to retain said bags in said stack.
Claim 2
Dependent Claim
91 words
A stack of plastic foil bags having two bag walls and an upper bag opening, each of said bag walls being provided with a respective centrally positioned punch-out piece whose removal results in a handle grip opening positioned adjacent said upper bag opening of said bag, the punch-out piece of one of said bag walls of each bag being removed, the punch-out piece of each other wall of said bag remaining in the respective handle grip opening, the remaining punch-out pieces being bonded together to retain said bags in said stack.
Claim 3
Dependent Claim
32 words
The stack according to claim 1 wherein said remaining punch-out pieces are attached to the respective bag walls by at least two lower tear bridges and at least one upper tear bridge.
Claim 4
Dependent Claim
22 words
The stack according to claim 1 wherein said remaining punch-out pieces are interlocked with each other by at least one interlock point.
Claim 5
Dependent Claim
15 words
The stack according to claim 3 wherein said bags are interlocked by two interlock points.
Claim 6
Dependent Claim
18 words
The stack according to claim 1 wherein said punch-out pieces are provided with at least one hang-up punch-out.
Claim 7
Dependent Claim
18 words
The stack according to claim 5 wherein said remaining punch-out pieces are each provided with two hang-up punch-outs.
Claim 8
Dependent Claim
141 words
In a process for making a stack of bags each having bag walls and an upper bag opening, each of said bag walls of said bags being provided with a centrally positioned punch-out piece whose removal results in a handle grip positioned adjacent said upper bag opening, wherein said punch-out piece of each of said bags in the ones of said bag walls that are on one and the same side of all of said bags in said stack are removed, and said punch-out pieces not removed from said bags are left in said stack and are interlocked with each other, the improvement comprising making an oblong perforation defining said punch-out pieces which result in said handle grips in said bag walls, and connecting said bags with each other by interlocking said punch-out pieces remaining in said stack of said bags.
Claim 9
Dependent Claim
141 words
In a process for making a stack of bags each having bag walls and an upper bag opening, each of said bag walls of said bags being provided with a centrally positioned punch-out piece whose removal results in a handle grip positioned adjacent said upper bag opening, wherein said punch-out piece of each of said bags in the ones of said bag walls that are on one and the same side of all of said bags in said stack are removed, and said punch-out pieces not removed from said bags are left in said stack and are interlocked with each other, the improvement comprising making an oblong perforation defining said punch-out pieces which result in said handle grips in said bag walls, and connecting said bags with each other by interlocking said punch-out pieces remaining in said stack of said bags.
Claim 10
Dependent Claim
118 words
In a stack of bags, each of said bags having bag walls and an upper bag opening, said bag walls being provided with centrally positioned punch-out pieces positioned opposite each other whose removal results in a handle grip positioned adjacent a bag opening of said bag, wherein said punch-out pieces of each of said bags in the ones of said bag walls that are on one and the same side of all of said bags in said stack are removed, the improvement wherein said punch-out pieces of each of said bags of the other ones of said bag walls not removed from said bags are left in said stack of said bags and are interlocked with each other.
Claim 11
Dependent Claim
118 words
In a stack of bags, each of said bags having bag walls and an upper bag opening, said bag walls being provided with centrally positioned punch-out pieces positioned opposite each other whose removal results in a handle grip positioned adjacent a bag opening of said bag, wherein said punch-out pieces of each of said bags in the ones of said bag walls that are on one and the same side of all of said bags in said stack are removed, the improvement wherein said punch-out pieces of each of said bags of the other ones of said bag walls not removed from said bags are left in said stack of said bags and are interlocked with each other.
Claim 12
Dependent Claim
18 words
The improvement according to claim 8 wherein said bags of said stack are made of a plastic material.
Claim 13
Dependent Claim
40 words
The improvement according to claim 8 wherein said punch-out pieces not removed from said stack of said bags are attached with said bag walls associated therewith by at least two lower tear bridges and at least one upper tear bridge.
Claim 14
Dependent Claim
33 words
The improvement according to claim 8 wherein said punch-out pieces of said bag walls not removed from said stack of said bags are interlocked with each other by at least one interlock point.
Claim 15
Dependent Claim
17 words
The improvement according to claim 11 wherein said bags are interlocked by two of said interlock points.
Claim 16
Dependent Claim
18 words
The improvement according to claim 8 wherein said punch-out pieces are provided with at least one hang-up punch-out.
Claim 17
Dependent Claim
18 words
The improvement according to claim 13 wherein said punch-out pieces are provided with two of said hang-up punch-outs.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |