US3889871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recloseable flexible bag
Assignee: ES&A Robinson Canada Ltd
•
Filing: 1973-02-26
•
Granted: 1975-06-17
•
Expires: 1993-02-26
Abstract
Abstract The invention provides a recloseable bag formed of flexible sheet material comprising a front wall and a rear wall sealed together adjacent at least one of a pair of opposite edges thereof, said bag including in a wall thereof an elongated deformable member, such as a metal wire, extending transversely of said edges to provide for repeated closure of the bag, the ends of the elongated member being spaced from said edges of the bag and the sheet material between the ends of the member and the said edges of the bag being removed. The invention also provides a method of producing said bags.
Inventors
- 👤 David B White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/30; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/812; B31B70/8123; Y; Y10; Y10S; Y10S383/00; Y10S383/905
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
143 words
In a recloseable bag formed of flexible sheet material comprising at least a front wall and a rear wall at least one edge of each of said front and rear walls being sealed together, and said bag including in the surface of at least one wall thereof at least one elongate deformable member extending in a direction transverse to the common direction of said edges which are sealed together, wherein the improvement comprises that an end of said elongate member stops short of a line formed by extending the common direction of said edges which are sealed together, and none of said flexible sheet material lies in an area between said end of said deformable member and said line, said area being located between the ends of said edges which are sealed together, and said deformable member does not extend into said area.
Claim 2
Dependent Claim
143 words
In a recloseable bag formed of flexible sheet material comprising at least a front wall and a rear wall at least one edge of each of said front and rear walls being sealed together, and said bag including in the surface of at least one wall thereof at least one elongate deformable member extending in a direction transverse to the common direction of said edges which are sealed together, wherein the improvement comprises that an end of said elongate member stops short of a line formed by extending the common direction of said edges which are sealed together, and none of said flexible sheet material lies in an area between said end of said deformable member and said line, said area being located between the ends of said edges which are sealed together, and said deformable member does not extend into said area.
Claim 3
Dependent Claim
23 words
A bag as claimed in claim 1 in which the front and rear walls are sealed together at two opposite side edges thereof.
Claim 4
Dependent Claim
28 words
A bag as claimed in claim 2 in which said elongate member extends in a direction transversely of the side edges adjacent a top end of the bag.
Claim 5
Dependent Claim
69 words
A bag as claimed in claim 3 in which the front wall and the rear wall are sealed together adjacent the top theReof, said elongate member providing for subsequent repeated closure of the bag after rupture of a seal adjacent the top thereof, and the absence of flexible sheet between said end and said line material providing for communication between the interior of the bag and the outside atmosphere.
Claim 6
Dependent Claim
13 words
A bag as claimed in claim 4 which has a sealable open bottom.
Claim 7
Dependent Claim
12 words
A bag as claimed in claim 4 which has a sealed bottom.
Claim 8
Dependent Claim
16 words
A bag as claimed in claim 4 including a reinforced header attached to the top thereof.
Claim 9
Dependent Claim
37 words
A bag as claimed in claim 1 in which the front and rear walls are sealed together at least at the bottom edge thereof, said elongate member extending transversely of top and bottom edges of the bag.
Claim 10
Dependent Claim
20 words
A bag as claimed in claim 1 in which the elongate member is attached by means of an adhesive tape.
Claim 11
Dependent Claim
18 words
A bag as claimed in claim 1 formed of a thermoplastic sheet material the seals being heat seals.
Claim 12
Dependent Claim
31 words
A bag as claimed in claim 1 which is formed of a thermoplastic sheet material the seals being heat seals, the elongate member being attached by a heat sealed thermoplastic tape.
Claim 13
Dependent Claim
33 words
A bag as claimed in claim 1 which is formed of a thermoplastic sheet material the seals being heat seals, the elongate member being attached in a heat sealed gusset in said wall.
Claim 14
Dependent Claim
17 words
A bag as claimed in claim 1 in which the elongate deformable member is a metal wire.
Claim 15
Dependent Claim
113 words
In a recloseable bag formed of a flexible sheet material comprising a front wall and a rear wall sealed together at or adjacent two opposite side edges thereof and unsealed at the top and bottom edges thereof said bag including in a wall thereof an elongate deformable member extending transversely of each of said side edges and extending adjacent each unsealed edge to provide for closure of said bag, the improvement in which the ends of each elongate member are spaced from said sealed side edges of the bag, without sheet material between the ends of the member and a line formed by extending the direction of the side edges of the bag.
Claim 16
Dependent Claim
113 words
In a recloseable bag formed of a flexible sheet material comprising a front wall and a rear wall sealed together at or adjacent two opposite side edges thereof and unsealed at the top and bottom edges thereof said bag including in a wall thereof an elongate deformable member extending transversely of each of said side edges and extending adjacent each unsealed edge to provide for closure of said bag, the improvement in which the ends of each elongate member are spaced from said sealed side edges of the bag, without sheet material between the ends of the member and a line formed by extending the direction of the side edges of the bag.
Claim 17
Dependent Claim
16 words
A bag as claimed in claim 14 in which the elongate member is a metal foil.
References Cited (Backward Citations)
US594235A
Cited
US651937A
Cited
US2801180A
Cited
US2897729A
Cited
US2980314A
Cited
US3321126A
Cited
US3402052A
Cited
US3543999A
Cited
US3687357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |