Patent US3950474A successfully refreshed from Google Patents.
US3950474A
Expired / Lapsed
US
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Method of manufacturing container package
Assignee: Grip-Pak Inc
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Filing: 1973-11-12
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Granted: 1976-04-13
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Expires: 1993-11-12
Abstract
Abstract The method for manufacturing interconnected multi-packaging devices from elongated flattened plastic tubular elements is disclosed.
Inventors
- 👤 Ernest Ray Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:10
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/50; B65D71/504; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10S264/81; Y10T; Y10T428/00; Y10T428/15; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
159 words
The method of forming a scrapless multi-packaging device including the steps of extruding at least two elongated and interconnected tubes of stretchable and elastic plastic material, flattening each of said tubes to provide flattened tubular elements, forming a plurality of pairs of parallel slits in each of said flattened tubular elements which are transversely aligned across said flattened tubular elements in order that each said pair of slits defines a flattened material band in one of said flattened tubular elements which is transversely aligned with a flattened material band in at least one other flattened tubular element, and forming alternate integral marginal connecting webs between each of said flattened material bands in each said tube while said flattened tubular elements are being slit in the aforementioned manner in order to form an interconnected series of transversely aligned flattened material bands that can be automatically opened up when longitudinally stretched as a continuous non-aligned sequence of generally tubular shaped bands.
Claim 2
Independent Claim
159 words
The method of forming a scrapless multi-packaging device including the steps of extruding at least two elongated and interconnected tubes of stretchable and elastic plastic material, flattening each of said tubes to provide flattened tubular elements, forming a plurality of pairs of parallel slits in each of said flattened tubular elements which are transversely aligned across said flattened tubular elements in order that each said pair of slits defines a flattened material band in one of said flattened tubular elements which is transversely aligned with a flattened material band in at least one other flattened tubular element, and forming alternate integral marginal connecting webs between each of said flattened material bands in each said tube while said flattened tubular elements are being slit in the aforementioned manner in order to form an interconnected series of transversely aligned flattened material bands that can be automatically opened up when longitudinally stretched as a continuous non-aligned sequence of generally tubular shaped bands.
Claim 3
Dependent Claim
63 words
The method as defined in claim 1 including the steps of providing at least two flattened tubular elements which are interconnected at the ends thereof and forming the plurality of pairs of parallel slits and connecting webs between the flattened bands of material defined thereby by slitting each of said flattened tubes throughout except at opposite alternating connecting webs on each said tubes.
Claim 4
Dependent Claim
74 words
The method as claimed in claim 1 including the steps of providing at least two flattened tubular elements which are interconnected in superimposed relationship to one another and forming the plurality of pairs of parallel slits and connecting webs between the flattened bands of material defined thereby by slitting each of said superimposed flattened tubes throughout except at the ends of each tube which form the connecting webs between the flattened bands of material.
Claim 5
Dependent Claim
70 words
The method as defined in claim 1 including the steps of providing a plurality of interconnected pairs of flattened tubular elements, and forming the plurality of pairs of parallel slits and connecting webs between the flattened bands of material defined thereby by slitting each of said plurality of interconnected pairs of flattened tubular elements throughout except at opposite alternating connecting webs on opposite alternating ends of the flattened tubular elements.
Claim 6
Dependent Claim
66 words
The method as defined in claim 1 including the steps of providing a plurality of interconnected pairs of flattened tubular elements, and forming the plurality of pairs of parallel slits and connecting webs between the flattened bands of material defined thereby by slitting each of said plurality pairs of flattened tubular elements throughout except at opposite alternating webs on opposite alternating sides of flattened tubular elements.
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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |