Patent US3744253A successfully refreshed from Google Patents.
US3744253A
Expired / Lapsed
US
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Oil spill boom
Assignee: Stamford Australia Pty Ltd
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Filing: 1972-03-20
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Granted: 1973-07-10
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Expires: 1992-03-20
Abstract
Abstract An oil spill boom to restrain the passage past the boom of oil spilt onto water. The boom comprises a plurality of alignable interconnectable floats, a continuous screen barrier extending through, between, above and below the floats with the part below the floats formed of two walls spread apart at the bottom to provide an open bottom water ballast chamber, props and stays to support the screen barrier erected.
Inventors
- 👤 P Williams
- 👤 K Williams
- 👤 C Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:10
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; E02B15/0814; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
140 words
An oil spill boom comprising a plurality of alignable interconnectable floats wherein each float is divided longitudinally into two equal parts, each incorporating buoyancy chambers and on the inner edge coamings whereby the two parts are joined together, a continuous screen barrier made of impervious flexible sheet extending through, between, above and below the floats and comprising a top fin held extended by a ''''U'''' prop having the bend of the ''''U'''' approximately the length of a float, the bottom walls held extended to provide an open bottom water ballast chamber by ''''U'''' props having the bend of each ''''U'''' approximately the length of a float and the walls held at an angle to one another by a strut, all said ''''U'''' props being pivotally mounted on a float, the fin and the bottom walls being held erected by stays.
Claim 2
Dependent Claim
140 words
An oil spill boom comprising a plurality of alignable interconnectable floats wherein each float is divided longitudinally into two equal parts, each incorporating buoyancy chambers and on the inner edge coamings whereby the two parts are joined together, a continuous screen barrier made of impervious flexible sheet extending through, between, above and below the floats and comprising a top fin held extended by a ''''U'''' prop having the bend of the ''''U'''' approximately the length of a float, the bottom walls held extended to provide an open bottom water ballast chamber by ''''U'''' props having the bend of each ''''U'''' approximately the length of a float and the walls held at an angle to one another by a strut, all said ''''U'''' props being pivotally mounted on a float, the fin and the bottom walls being held erected by stays.
Claim 3
Dependent Claim
66 words
An oil spill boom screen barrier as claimed in claim 1, wherein the ends of the fin and the ends of the walls project beyond a float a sufficient distance to permit maNoeuvreability of a boom and the respective ends are joined together about a post, the fins and walls of one float assembly being coupled to adjoining assemblies by coupling members embracing the respective posts.
Claim 4
Dependent Claim
70 words
An oil spill boom screen barrier as claimed in claim 2, wherein the coupling members each comprise a longitudinal casing having a medial wall and opposed longitudinal slots in the outer wall which are open at the bottom and closed at the top and is slid over the conjoined ends of a fin and walls embracing the post therein until the top end of the fin abuts the closed top.
Claim 5
Dependent Claim
36 words
An oil spill boom as claimed in claim 3 wherein a number of conjoined float assemblies are connected together to constitute a boom by straps secured on each float having respectively male and female catches thereon.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |