Patent US4537308A successfully refreshed from Google Patents.
US4537308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rupturable packages
Assignee: Individual
•
Filing: 1980-02-08
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Granted: 1985-08-27
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Expires: 2000-02-08
Abstract
Abstract A package comprising a cylindrical plastic tube closed at each end by an ultrasonic band seal. The seal at one end has a sealed region which is narrower than any portion of the other seal whereby squeezing of the package produces an immediate one-shot dispensing of liquid contained therein by causing rupture of the narrow region of the seal. Various package forms include perpendicularly arranged bands to provide a tetrahedral shape, a tab extending beyond one seal to provide identification of the contents of the package, notched seals providing a tear open package, and a multiple package construction in which one fluid containing tube is contained within another.
Inventors
- 👤 Edward F. Hollander, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:48
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3261; B65D81/3266; B65D75/00; B65D75/52; B65D75/58; B65D75/5816; B65D75/5822; B65D2203/00; B65D75/40; B65D75/44; B65D75/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A package comprising a cylindrical tube of flexible material, a first end of said tube being closed by a first ultrasonic seal extending transversely across the tube, a second end of said tube being closed by a second ultrasonic seal extending transversely across the tube, said tube providing an internal chamber between said seals for containing a product and said second seal having a portion narrower than any portion of the first seal for rupturing under pressure for the dispensing of the product only through said second end of the tube, and a tab extending beyond one of said seals, said tab consisting of an open extension of said tube, and a plurality of notches formed in the open edge of said extension providing a code to identify the contents of the package.
Claim 2
Dependent Claim
133 words
A package comprising a cylindrical tube of flexible material, a first end of said tube being closed by a first ultrasonic seal extending transversely across the tube, a second end of said tube being closed by a second ultrasonic seal extending transversely across the tube, said tube providing an internal chamber between said seals for containing a product and said second seal having a portion narrower than any portion of the first seal for rupturing under pressure for the dispensing of the product only through said second end of the tube, and a tab extending beyond one of said seals, said tab consisting of an open extension of said tube, and a plurality of notches formed in the open edge of said extension providing a code to identify the contents of the package.
Claim 3
Dependent Claim
152 words
A package comprising a cylindrical tube of flexible material, a first end of said tube being closed by a first ultrasonic seal extending transversely across the tube, a second end of said tube being closed by a second ultrasonic seal extending transversely across the tube, said tube providing an internal chamber between said seals for containing a product and said second seal having a portion narrower than any portion of the first seal for rupturing under pressure for the dispensing of the product only through said second end of the tube, and a second cylindrical tube extending from said second seal, the extended end of said second tube being closed by a third ultrasonic seal extending transversely across said second tube and having a portion of its width intermediate the width of the first and second seals for rupturing under pressure substantially greater than the pressure under which the second seal ruptures.
Claim 4
Dependent Claim
152 words
A package comprising a cylindrical tube of flexible material, a first end of said tube being closed by a first ultrasonic seal extending transversely across the tube, a second end of said tube being closed by a second ultrasonic seal extending transversely across the tube, said tube providing an internal chamber between said seals for containing a product and said second seal having a portion narrower than any portion of the first seal for rupturing under pressure for the dispensing of the product only through said second end of the tube, and a second cylindrical tube extending from said second seal, the extended end of said second tube being closed by a third ultrasonic seal extending transversely across said second tube and having a portion of its width intermediate the width of the first and second seals for rupturing under pressure substantially greater than the pressure under which the second seal ruptures.
Claim 5
Dependent Claim
37 words
A package according to claim 2 wherein said seals are in the form of bands, said second and third band seals being located in a plane perpendicular to the plane in which said first seal is located.
Claim 6
Dependent Claim
19 words
A package according to claim 2 in which said first and second tubes are partially filled with a fluid.
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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) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |