US3827341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a package
Assignee: Hargro Lamcote Inc
•
Filing: 1973-03-30
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Granted: 1974-08-06
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Expires: 1993-03-30
Abstract
Abstract A gusset pouch and a method of making the pouch is disclosed. The pouch consists of two webs of material that have coterminous marginal edges with the first web having a width greater than the second web between the marginal edges. The first web has a main body portion substantially the same width as the second web with an interconnecting segment between the main body portion and each of the receptive marginal edges. The two webs are interconnected or adhered to each other at one end while the segments each have first and second overlapping portions respectively adhered to the first web and to the second web. The method of making the package or pouch includes folding the first web along spaced fold lines to produce first and second overlapping portions adjacent each marginal edge with the first fold lines spaced inwardly from the respective marginal edges, positioning a second web adjacent the first web and heat sealing the webs to each other along the exposed portions to produce a gusseted tube. The gusseted tube can then be formed in individual pouches by heat sealing transversely of the webs at longitudinally spaced locations and severing the webs along one edge of the transverse heat seal.
Inventors
- 👤 L Stage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/644; B31B2155/00; B31B2155/002; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
156 words
A method of connecting two webs comprising the steps of folding a first web along first and second spaced fold lines inwardly of each opposite marginal edge of said web to produce first and second overlapping portions with the first fold lines spaced inwardly from the respective marginal edges and the second fold lines located inwardly of the first fold lines, and the distance between said first fold lines and said marginal edges being greater than the distance between said first and second fold lines to expose a portion of the web beyond said first fold lines; positioning a second web adjacent the first web with overlapping portions located between said webs, at least one of said webs having heat sealing characteristics on the side facing the second of said webs; and heat sealing the webs to each other along the exposed portions of the overlapping portions of the first web to produce a gusseted tube.
Claim 2
Independent Claim
156 words
A method of connecting two webs comprising the steps of folding a first web along first and second spaced fold lines inwardly of each opposite marginal edge of said web to produce first and second overlapping portions with the first fold lines spaced inwardly from the respective marginal edges and the second fold lines located inwardly of the first fold lines, and the distance between said first fold lines and said marginal edges being greater than the distance between said first and second fold lines to expose a portion of the web beyond said first fold lines; positioning a second web adjacent the first web with overlapping portions located between said webs, at least one of said webs having heat sealing characteristics on the side facing the second of said webs; and heat sealing the webs to each other along the exposed portions of the overlapping portions of the first web to produce a gusseted tube.
Claim 3
Dependent Claim
37 words
A method as defined in claim 1, in which said webs have opposite ends including the further step of heat sealing the webs to each other along one of said ends to produce an open ended pouch.
Claim 4
Dependent Claim
59 words
A method as defined in claim 2, in which the heat sealing of one of said ends includes sealing the end portions of each of said first overlapping portions to said first web and sealing the end portions of the second overlapping portions to said second web while maintaining said overlapping portions free of interconnection in the overlapped areas.
Claim 5
Dependent Claim
24 words
A method as defined in claim 3 in which said first web is a polyester film having only one surface of heat sealing characteristics.
Claim 6
Dependent Claim
16 words
A method as defined in claim 4, in which said second web is a paper material.
Claim 7
Dependent Claim
41 words
A method as defined in claim 1, including the further steps of heat sealing said webs transversely between marginal edges at longitudinally spaced locations and severing said webs along one edge of each transverse heat seal to produce open ended pouches.
Claim 8
Dependent Claim
47 words
A method as defined in claim 1, in which said first web is a laminate of a polyester film and a polypropylene film with the polyester film defining the outer surface of said first web and the polypropylene film defining the inner surface of said first web.
Claim 9
Dependent Claim
66 words
A method as defined in claim 7, including the further step of heating said first web at longitudinally spaced locations to seal said webs to each other and to seal the respective overlapping portions to the respective webs while maintaining said overlapping areas of the first and second overlapping portions free of interconnecting; and severing said webs along the transverse seals to produce open ended pouches.
Claim 10
Independent Claim
167 words
A method of forming a gusseted article from two webs of material interconnected along coterminous marginal edges comprising the steps of folding a first web of material along first and second spaced fold lines located inwArdly of each of the side marginal edges of said first web to produce first and second overlapping portions; said first fold lines being closer to said marginal edges than said second fold lines and the distance between said first fold lines and said side marginal edges being greater than the distance between said first and second fold lines, whereby a gusset is formed such that areas are exposed beyond said second fold lines and adjacent the side marginal edges of said first web of material and said areas lie beyond said gusset; at least one of said webs having heat sealing characteristics along the side edges facing said other web and adhering said first web to said second web along said exposed area adjacent the marginal edges of said first web.
Claim 11
Independent Claim
167 words
A method of forming a gusseted article from two webs of material interconnected along coterminous marginal edges comprising the steps of folding a first web of material along first and second spaced fold lines located inwArdly of each of the side marginal edges of said first web to produce first and second overlapping portions; said first fold lines being closer to said marginal edges than said second fold lines and the distance between said first fold lines and said side marginal edges being greater than the distance between said first and second fold lines, whereby a gusset is formed such that areas are exposed beyond said second fold lines and adjacent the side marginal edges of said first web of material and said areas lie beyond said gusset; at least one of said webs having heat sealing characteristics along the side edges facing said other web and adhering said first web to said second web along said exposed area adjacent the marginal edges of said first web.
Claim 12
Dependent Claim
32 words
The method defined in claim 9 in which said first web is a non-heat sealable polyester film coated on one side with a heat sealable material and the second web is paper.
Claim 13
Dependent Claim
37 words
A method as defined in claim 9 in which said webs have opposite ends including the further step of heat sealing the webs to each other along one of said ends to produce an open ended pouch.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |