US3779449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear strip of severable bags
Assignee: Individual
•
Filing: 1972-05-05
•
Granted: 1973-12-18
•
Expires: 1992-05-05
Abstract
Abstract A flexible bag or series of flexible bags connected in a strip, each bag having a selvage portion, this selvage portion being common to all the bags when in said strip. The bag or bags are connected to the selvage portion by a perforated line, there being an elongated slit in the perforated line adjacent the side edges of each bag. The bag or bags are each provided with an open mouth defined by an upwardly extending portion of the rear wall thereof, this upwardly extending portion forming a lip. Each lip is connected to the selvage portion by means of the perforated line. When a bag is pulled laterally forward, the slits permit a portion of the rear wall to move into a transverse position forming side walls for the open mouth. The selvage portion may be flat or tubular. When it is tubular, it is adapted to receive a supporting mandrel and is also optionally provided with apertures corresponding to optionally provided apertures in the mandrel, whereby pulses of gaseous or liquid fluid may be passed into the mouth of each bag to aid in opening the bag.
Inventors
- 👤 H Membrino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:36
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/002; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
161 words
A liNear strip of bags constructed at least partially of thermoplastic material, said bags being arranged side-by-side and being commonly connected by means of a common perforated line to a linearly extending connecting strip, said connecting strip constituting a common selvage portion, each bag comprising a front wall and a rear wall sealed to each other at their corresponding side edges and bottom edges, the top edges being unsealed to form an open mouth, the pper portion of the rear wall of each bag extending beyond the corresponding upper edge of the front wall at said open mouth to form an extended lip, said lip being connected to said selvage portion by said common perforated line, said common perforated line having a plurality of elongated slits collinear therewith, each of said plurality of slits bridging the adjacent side edges of an adjacent pair of bags said bags being unconnected to one another between said common perforated line and said bottom edges.
Claim 2
Dependent Claim
161 words
A liNear strip of bags constructed at least partially of thermoplastic material, said bags being arranged side-by-side and being commonly connected by means of a common perforated line to a linearly extending connecting strip, said connecting strip constituting a common selvage portion, each bag comprising a front wall and a rear wall sealed to each other at their corresponding side edges and bottom edges, the top edges being unsealed to form an open mouth, the pper portion of the rear wall of each bag extending beyond the corresponding upper edge of the front wall at said open mouth to form an extended lip, said lip being connected to said selvage portion by said common perforated line, said common perforated line having a plurality of elongated slits collinear therewith, each of said plurality of slits bridging the adjacent side edges of an adjacent pair of bags said bags being unconnected to one another between said common perforated line and said bottom edges.
Claim 3
Dependent Claim
31 words
The strip of bags as defined in claim 1 wherein said selvage portion is a tubular sleeve adapted to slidably receive a mandrel from which the strip of bags may hang.
Claim 4
Dependent Claim
51 words
The strip of bags as defined in claim 2 wherein a series of linearly spaced, transverse, open passages are provided in said sleeve, said passages extending from within said tubular sleeve toward the mouths of the corresponding bags, there being at least one passage in alignment with each of said bags.
Claim 5
Dependent Claim
19 words
The strip of bags as defined in claim 2 wherein said strip of bags is formed from tubular stock.
Claim 6
Dependent Claim
32 words
The strip of bags as defined in claim 2 wherein said strip of bags is formed from flat sheet stock which is overfolded to form the bag portion and the sleeve portion.
Claim 7
Dependent Claim
39 words
The strip of bags as defined in claim 1 wherein said selvage portion is a flat strip having a series of spaced, transverse apertures adapted to receive engaging means for moving said strip of bags in a linear direction.
Claim 8
Dependent Claim
20 words
The strip of bags as defined in claim 1 wherein said strip of bags is formed entirely of thermoplastic material.
Claim 9
Dependent Claim
30 words
The strip of bags as defined in claim 1 wherein said strip of bags is of a laminated construction wherein at least the inner layer is formed of thermoplastic material.
References Cited (Backward Citations)
US3312339A
Cited
US3353661A
Cited
US3385428A
Cited
US3559874A
Cited
US3616991A
Cited
US3679127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |