US4537528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireproof boom
Assignee: Shell USA Inc
•
Filing: 1984-11-27
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Granted: 1985-08-27
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Expires: 2004-11-27
Abstract
Abstract A fireproof boom for containing flammable pollutants on water includes a flotation member, a skirt depending from the flotation member, and at least two layers of heat-resistant, water-sorbent material surrounding the flotation member. The heat-resistant, water-sorbent material draws water around the heat-sensitive flotation member, forming steam in the presence of flaming pollutant and allowing only the outer layer of heat-resistant material to become slightly singed.
Inventors
- 👤 Wayne F. Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:52
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; E02B15/0814; E02B15/0821; E02B15/0857; E02B15/0864; E02B15/0885; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A fireproof boom for containing a flammable pollutant on a water surface comprising, a flotation member, and at least two layers of heat-resistant, water-sorbent material surrounding the flotation member and extending into the water and functionable to perform an osmotic wicking action to draw water up into the layers of the heat-resistant material and around the flotation member, thereby positioning the water to from protective steam about the flotation member upon exposure of the boom to fire.
Claim 2
Dependent Claim
77 words
A fireproof boom for containing a flammable pollutant on a water surface comprising, a flotation member, and at least two layers of heat-resistant, water-sorbent material surrounding the flotation member and extending into the water and functionable to perform an osmotic wicking action to draw water up into the layers of the heat-resistant material and around the flotation member, thereby positioning the water to from protective steam about the flotation member upon exposure of the boom to fire.
Claim 3
Dependent Claim
23 words
The boom of claim 1 including a skirt depending from the flotation member, the skirt being an extension of the heat-resistant, water-sorbent material.
Claim 4
Dependent Claim
14 words
The boom of claim 1 wherein the skirt is weighted at its lowermost end.
Claim 5
Dependent Claim
14 words
The boom of claim 1 wherein the heat-resistant, water-sorbent material is woven glass fibers.
Claim 6
Dependent Claim
12 words
The boom of claim 1 wherein the flotation member is foamed polypropylene.
Claim 7
Dependent Claim
17 words
The boom of claim 1 including a tension member located at the lowermost end of the skirt.
References Cited (Backward Citations)
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US3146598A
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US3638430A
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US3756031A
Cited
US3807177A
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US4043131A
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Cited
US4279538A
Cited
US4422797A
Cited
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 |