US4966286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy open flexible bag
Assignee: Procter and Gamble Co
•
Filing: 1989-06-26
•
Granted: 1990-10-30
•
Expires: 2009-06-26
Abstract
Abstract An easy open flexible bag preferably containing one or more stacks of flexible articles which are compressed in a direction substantially parallel to their thickness. The degree of compression may be as much as 50% or more. In a preferred embodiment, the bag encloses the compressed articles and exhibits a substantially rectilinear shape. The bag preferably includes an integral carrying handle. The side, front, and back panels of the bag are subject to tension imposed by the articles. The top of the bag is closed by forming inwardly folded side gussets and sealing the vertically extending portions of the front and back panels to one another. A continuous line of weakness spanning a tensioned side wall of the bag and continuing into the closed uppermost end of the bag is provided. The portion of the line of weakness in the uppermost end of the bag is located near the innermost portions of the opposed inwardly folded side gussets such that the bag may be easily opened by grasping the outermost edge of the top of the bag and partially separating or completely removing the corner of the bag, along with the included side gusset, along the continuous line of weakness. Partial separation or complete removal of a portion of the tensioned side panel of the bag allows the coinciding portion of the stack of compressed articles to project in fan-like array through the aperture to permit easy one-at-a-time removal.
Inventors
- 👤 Delmar R. Muckenfuhs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:13
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/16; B65D75/00; B65D75/52; B65D75/58; B65D75/5827; B65D75/5833; B65D33/00; B65D33/06; B65D33/08
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
266 words
An easy open substantially rectangular flexible bag of articles, said articles being arranged in a stack in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said side panels of said bag and extending into said closed uppermost end of said bag near an innermost end of one of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing the included portion of said side gusset from the closed uppermost end of said bag during the separation process.
Claim 2
Dependent Claim
266 words
An easy open substantially rectangular flexible bag of articles, said articles being arranged in a stack in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said side panels of said bag and extending into said closed uppermost end of said bag near an innermost end of one of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing the included portion of said side gusset from the closed uppermost end of said bag during the separation process.
Claim 3
Dependent Claim
262 words
An easy open substantially rectangular flexible bag of articles, said articles being arranged in a stack in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said side panels of said bag and extending into said closed uppermost end of said bag inboard of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing said included side gusset portion of said bag from the closed uppermost end of said bag during the separation process.
Claim 4
Dependent Claim
262 words
An easy open substantially rectangular flexible bag of articles, said articles being arranged in a stack in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said side panels of said bag and extending into said closed uppermost end of said bag inboard of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing said included side gusset portion of said bag from the closed uppermost end of said bag during the separation process.
Claim 5
Dependent Claim
62 words
The flexible bag of articles of claim 1 or claim 2, wherein a pair of horizontal areas of securement are provided in the uppermost end of said bag, said horizontal areas of securement being separated from one another by a predetermined distance, said bag further including means for carrying said bag provided in the area located intermediate said horizontal areas of securement.
Claim 6
Dependent Claim
18 words
The flexible bag of claim 3, wherein said means for carrying said bag comprises a continuous curvilinear slit.
Claim 7
Dependent Claim
14 words
The flexible bag of claim 4, wherein said continuous curvilinear slit defines an aperture.
Claim 8
Dependent Claim
50 words
The flexible bag of claim 3, wherein said portion of said line of weakness extending into said closed uppermost end of said bag is located between said carrying means and the innermost end of the side gusset located adjacent said side panel containing a portion of said line of weakness.
Claim 9
Dependent Claim
50 words
The flexible bag of claim 3, wherein said portion of said line of weakness located in said closed uppermost end of said bag is located between said carrying means and the innermost end of the side gusset located opposite said side panel containing a portion of said line of weakness.
Claim 10
Dependent Claim
69 words
The flexible bag of claim 3, wherein at least two superposed stacks of articles are contained within said flexible bag, and wherein said side panel containing a portion of said line of weakness further includes a pair of ancillary lines of weakness to expose a portion of a secondary stack of articles in said side panel of said flexible bag after the first stack of articles has been removed.
Claim 11
Dependent Claim
21 words
The flexible bag of claim 3, wherein said line of weakness is comprised of perforations in the material comprising said bag.
Claim 12
Dependent Claim
56 words
The flexible bag of claim 9, wherein at least a portion of said line of weakness is comprised of laterally extending perforations to minimize the need for precise registration of said lines of perforation in said vertically extending portions of said front and back panels with one another in the closed uppermost end of said bag.
Claim 13
Dependent Claim
31 words
The flexible bag of claim 3, including graphical indicia to direct the user's attention to the portion of said line of weakness extending into said closed uppermost end of said bag.
Claim 14
Dependent Claim
346 words
An easy open substantially rectangular flexible bag of compressed flexible articles, said flexible articles being arranged in a stack and held in compression in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag, said articles being compressed in a direction substantially parallel to their thickness so that said front and back panels and said side panels of said flexible bag are subject to tension; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said tensioned side panels of said bag and extending into said closed uppermost end of said bag near an innermost end of one of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing said included portion of said side gusset of said bag from the closed uppermost end of said bag during the separation process, whereupon the portion of the stack of compressed articles coinciding with the aperture created in said tensioned side panel projects through said aperture in a fan-like array to facilitate easy one-at-a-time removal of said articles from said bag.
Claim 15
Dependent Claim
346 words
An easy open substantially rectangular flexible bag of compressed flexible articles, said flexible articles being arranged in a stack and held in compression in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag, said articles being compressed in a direction substantially parallel to their thickness so that said front and back panels and said side panels of said flexible bag are subject to tension; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said tensioned side panels of said bag and extending into said closed uppermost end of said bag near an innermost end of one of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing said included portion of said side gusset of said bag from the closed uppermost end of said bag during the separation process, whereupon the portion of the stack of compressed articles coinciding with the aperture created in said tensioned side panel projects through said aperture in a fan-like array to facilitate easy one-at-a-time removal of said articles from said bag.
Claim 16
Dependent Claim
339 words
An easy open substantially rectangular flexible bag of compressed flexible articles, said flexible articles being arranged in a stack and held in compression in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag, said articles being compressed in a direction substantially parallel to their thickness so that said front and back panels and said side panels of said flexible bag are subject to tension; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said tensioned side panels of said bag and extending into said closed uppermost end of said bag inboard of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing said included side gusset portion of said bag from the closed uppermost end of said bag during the separation process, whereupon the portion of the stack of compressed articles coinciding with the aperture created in said tensioned side panel projects through said aperture in a fan-like array to facilitate easy one-at-a-time removal of said articles from said bag.
Claim 17
Dependent Claim
339 words
An easy open substantially rectangular flexible bag of compressed flexible articles, said flexible articles being arranged in a stack and held in compression in a direction substantially parallel to their thickness, said bag of articles comprising: (a) a flexible bag having a front and a back panel connected to one another by means of a pair of side panels, a bottom panel secured about its periphery to said front and back and side panels and a closed uppermost end comprising a pair of inwardly folded side gussets secured between the vertically extending portions of said front and back panels by means of at least one horizontal area of securement; (b) a stack of articles contained within said flexible bag, said articles being oriented so that the substantially planar surface of said articles is aligned substantially parallel to the side panels of said bag and the outermost peripheral edges of the articles contained within said stack are aligned substantially parallel to the front and back panels of said bag, said articles being compressed in a direction substantially parallel to their thickness so that said front and back panels and said side panels of said flexible bag are subject to tension; and (c) an easy open device comprising a substantially continuous line of weakness located partially within one of said tensioned side panels of said bag and extending into said closed uppermost end of said bag inboard of said opposed, inwardly folded side gussets, whereby said easy open bag can be easily opened by at least partially separating a corner portion of said bag from the remainder of said bag by applying tension along said continuous line of weakness, said separation also removing said included side gusset portion of said bag from the closed uppermost end of said bag during the separation process, whereupon the portion of the stack of compressed articles coinciding with the aperture created in said tensioned side panel projects through said aperture in a fan-like array to facilitate easy one-at-a-time removal of said articles from said bag.
Claim 18
Dependent Claim
63 words
The flexible bag of compressed articles of claim 12 or claim 13, wherein a pair of horizontal areas of securement are provided in the uppermost end of said bag, said horizontal areas of securement being separated from one another by a predetermined distance, said bag further including means for carrying said bag provided in the area located intermediate said horizontal areas of securement.
Claim 19
Dependent Claim
18 words
The flexible bag of claim 14, wherein said means for carrying said bag comprises a continuous curvilinear slit.
Claim 20
Dependent Claim
14 words
The flexible bag of claim 15, wherein said continuous curvilinear slit defines an aperture.
Claim 21
Dependent Claim
50 words
The flexible bag of claim 14, wherein said portion of said line of weakness extending into said closed uppermost end of said bag is located between said carrying means and the innermost end of the side gusset located adjacent said side panel containing a portion of said line of weakness.
Claim 22
Dependent Claim
50 words
The flexible bag of claim 14, wherein said portion of said line of weakness located in said closed uppermost end of said bag is located between said carrying means and the innermost end of the side gusset located opposite said side panel containing a portion of said line of weakness.
Claim 23
Dependent Claim
75 words
The flexible bag of claim 14, wherein at least two superposed stacks of compressed flexible articles are contained within said flexible bag, and wherein said side panel containing a portion of said line of weakness further includes a pair of ancillary lines of weakness to expose a portion of a secondary stack of compressed flexible articles in said side panel of said flexible bag after the first stack of compressed flexible articles has been removed.
Claim 24
Dependent Claim
21 words
The flexible bag of claim 14, wherein said line of weakness is comprised of perforations in the material comprising said bag.
Claim 25
Dependent Claim
56 words
The flexible bag of claim 20, wherein at least a portion of said line of weakness is comprised of laterally extending perforations to minimize the need for precise registration of said lines of perforation in said vertically extending portions of said front and back panels with one another in the closed uppermost end of said bag.
Claim 26
Dependent Claim
31 words
The flexible bag of claim 14, including graphical indicia to direct the user's attention to the portion of said line of weakness extending into said closed uppermost end of said bag.
References Cited (Backward Citations)
US655998A
Cited
US1261612A
Cited
US1733219A
Cited
US1920841A
Cited
US2011236A
Cited
US2196185A
Cited
US2127118A
Cited
US2349369A
Cited
US2506021A
Cited
US2700459A
Cited
US2781161A
Cited
US2923404A
Cited
US3059387A
Cited
US3029012A
Cited
US3006119A
Cited
US3044228A
Cited
US3056245A
Cited
US3117513A
Cited
US3173188A
Cited
US3161336A
Cited
US3361041A
Cited
US3327449A
Cited
US3206105A
Cited
US3381440A
Cited
US3339820A
Cited
US3370630A
Cited
US3593622A
Cited
US3514033A
Cited
US3605570A
Cited
US3548723A
Cited
US3729886A
Cited
US3818673A
Cited
US3824759A
Cited
US4047362A
Cited
US4062169A
Cited
US4031815A
Cited
US4074508A
Cited
US4241562A
Cited
GB2035258A
Cited
US4182237A
Cited
US4216899A
Cited
US4252269A
Cited
US4328655A
Cited
US4688369A
Cited
US4715635A
Cited
US4414788A
Cited
US4638913A
Cited
US4628535A
Cited
US4713839A
Cited
US4573203A
Cited
US4573203B1
Cited
US4610029A
Cited
US4501107A
Cited
US4539705A
Cited
US4550439A
Cited
US4660354A
Cited
US4605392A
Cited
US4609366A
Cited
US4710967A
Cited
US4602472A
Cited
US4633649A
Cited
US4636191A
Cited
US4696145A
Cited
US4577453A
Cited
US4557385A
Cited
US4685276A
Cited
US4613988A
Cited
US4607388A
Cited
US4702731A
Cited
US4608808A
Cited
US4696050A
Cited
US4604084A
Cited
US4721396A
Cited
US4738546A
Cited
US4664957A
Cited
US4720872A
Cited
US4730942A
Cited
US4699608A
Cited
US4661989A
Cited
US4660352A
Cited
US4688370A
Cited
US4703517A
Cited
US4686815A
Cited
US4688372A
Cited
DE3629563A1
Cited
US4704100A
Cited
DE3642327A1
Cited
US4691369A
Cited
US4677810A
Cited
US4694638A
Cited
US4711066A
Cited
US4730943A
Cited
US4706440A
Cited
US4717262A
Cited
US4846587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |