Patent US213142A successfully refreshed from Google Patents.
Patent US4890744A successfully refreshed from Google Patents.
US4890744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy open product pouch
Assignee: WA LANE Inc A CORP OF
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Filing: 1988-10-28
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Granted: 1990-01-02
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Expires: 2008-10-28
Abstract
Abstract An easy open pouch is formed from front and back thin films by a seal formed between the films. The seal defines a product storage chamber and a dispensing cavity between the films. The seal completely surrounds the product storage chamber. An opening to the exterior of the pouch is formed in the seal in the dispensing cavity. The product storage chamber and the dispensing cavity are located adjacent to one another with a common wall located between them. The common wall is formed as a part of the seal and is frangible in response to a pressure differential between the product storage chamber and the dispensing cavity. Upon creating a pressure differential between the product storage area and the dispensing cavity the seal across the common wall delaminates to join the product storage chamber to the dispensing cavity. Product can then be dispensed from the product storage chamber through the dispensing cavity and out of the dispensing cavity opening.
Inventors
- 👤 William A. Lane, Jr.
- 👤 Steven D. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:52
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5816; B65D75/5822; B65D75/28; B65D75/30; Y; Y10; Y10S; Y10S383/00; Y10S383/906
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
189 words
A pouch formed from thin film which comprises: front and back films joined together about juxtaposed portions of said front and back films to form (1) an initially sealed product chamber, (2) a dispensing cavity, and (3) a control means for first isolating and subsequently connecting said dispensing cavity and said product chamber; said product chamber forming a product reservoir for storage of a product in said pouch; said dispensing cavity having an opening to the exterior of said pouch for dispensing said product from said pouch; said control means located in association with said product chamber and said dispensing cavity and first forming a temporary barrier between said product chamber and said dispensing cavity and further subsequently connecting said product chamber to said dispensing chamber for transferring said product from said product chamber through said dispensing cavity to said dispensing cavity opening; said control means comprising a plurality of temporary seals between said front and back films; at least one of said temporary seals initially forming a portion of a continuous seal between said front and back films; and said continuous seal circumscribing and defining said product chamber.
Claim 2
Dependent Claim
189 words
A pouch formed from thin film which comprises: front and back films joined together about juxtaposed portions of said front and back films to form (1) an initially sealed product chamber, (2) a dispensing cavity, and (3) a control means for first isolating and subsequently connecting said dispensing cavity and said product chamber; said product chamber forming a product reservoir for storage of a product in said pouch; said dispensing cavity having an opening to the exterior of said pouch for dispensing said product from said pouch; said control means located in association with said product chamber and said dispensing cavity and first forming a temporary barrier between said product chamber and said dispensing cavity and further subsequently connecting said product chamber to said dispensing chamber for transferring said product from said product chamber through said dispensing cavity to said dispensing cavity opening; said control means comprising a plurality of temporary seals between said front and back films; at least one of said temporary seals initially forming a portion of a continuous seal between said front and back films; and said continuous seal circumscribing and defining said product chamber.
Claim 3
Dependent Claim
18 words
A pouch of claim 1 further including: the remainder of said temporary seals located in said dispensing cavity.
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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) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |