Patent US2647019A successfully refreshed from Google Patents.
Patent US3849989A successfully refreshed from Google Patents.
US3849989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable barrier for substances floating on water
Assignee: Individual
•
Filing: 1973-05-25
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Granted: 1974-11-26
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Expires: 1993-05-25
Abstract
Abstract A floating barrier for substances floating on water having: a series of inflatable chambers, with plural subchambers, disposed in end-to-end relation; a flexible skirt depending from the chambers; and tension members on each side of the barrier.
Inventors
- 👤 P Preus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:50
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; E02B15/0814; E02B15/085; E02B15/0857; E02B15/0864
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
60 words
A floating barrier for substances floating on water comprising: a floatation means including plurality of inflatable chambers hingedly connected in end to end relationship, each of said chambers being divided into plural independent subchambers by flexible wall means disposed therein and liquid impervious skirt means depending from said floation means to provide a liquid barrier below the water line thereof.
Claim 2
Dependent Claim
60 words
A floating barrier for substances floating on water comprising: a floatation means including plurality of inflatable chambers hingedly connected in end to end relationship, each of said chambers being divided into plural independent subchambers by flexible wall means disposed therein and liquid impervious skirt means depending from said floation means to provide a liquid barrier below the water line thereof.
Claim 3
Dependent Claim
23 words
A barrier in accordance with claim 1 furtherr comprising tension means disposed substantially coextensive with and on each side of said floatation means.
Claim 4
Dependent Claim
26 words
A barrier in accordance with claim 1 further comprising a continuous and upwardly extending member formed along the upper surface of said floatation means coextensive therewith.
Claim 5
Dependent Claim
24 words
A barrier in accordance with claim 1 further comprising plural handholds disposed at spaced intervals along the top and bottom edges of said barrier.
References Cited (Backward Citations)
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US3613377A
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Cited
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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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |