Patent US4049170A successfully refreshed from Google Patents.
US4049170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for pulling up and paying out an oil boom
Assignee: Bridgestone Corp
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Filing: 1976-04-23
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Granted: 1977-09-20
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Expires: 1996-04-23
Abstract
Abstract A device for pulling up and paying out an oil boom comprises a structural frame, a pair of end pulleys horizontally journaled on the frame, an endless belt engaged with the end pulleys and having a plurality of engaging projections for oil boom and a pusher member for slightly urging the oil boom against the endless belt, the pusher member being resiliently supported by a supporting member with a proper distance held between the bottom portion of the pusher member and the upper surface of the endless belt.
Inventors
- 👤 Hiroshi Kawakami
- 👤 Isao Nagaoka
- 👤 Yukio Tsukagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:45
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
149 words
A device for pulling up and paying out an oil boom formed by a plurality of longitudinally spaced floats fixed to at least one side of a continuous flexible skirt at certain equally spaced predetermined intervals, said device comprising: a structural frame, a pair of end pulleys journaled to said frame for rotation about substantially horizontal axes at positions spaced from each other, an endless belt engaging said end pulleys and having on its outer surface a plurality of float engaging projections for said oil boom, a pusher member mounted in juxtaposition to said structural frame overlying and facing the projection on a surface of the endless belt, means for resiliently supporting said pusher member at a given distance relative to said endless belt and wherein said engaging projections are arranged on said endless belt at intervals substantially equal to the intervals between said float on said oil boom.
Claim 2
Independent Claim
149 words
A device for pulling up and paying out an oil boom formed by a plurality of longitudinally spaced floats fixed to at least one side of a continuous flexible skirt at certain equally spaced predetermined intervals, said device comprising: a structural frame, a pair of end pulleys journaled to said frame for rotation about substantially horizontal axes at positions spaced from each other, an endless belt engaging said end pulleys and having on its outer surface a plurality of float engaging projections for said oil boom, a pusher member mounted in juxtaposition to said structural frame overlying and facing the projection on a surface of the endless belt, means for resiliently supporting said pusher member at a given distance relative to said endless belt and wherein said engaging projections are arranged on said endless belt at intervals substantially equal to the intervals between said float on said oil boom.
Claim 3
Dependent Claim
34 words
A device as claimed in claim 1, wherein one of said end pulleys is inclined at a vertical position lower than said other end pulley such that said endless belt approaches the water surface.
Claim 4
Dependent Claim
55 words
A device as claimed in claim 1, wherein said pusher member is pivotably journaled to a supporting member positioned on said frame and to the side of said endless belt, and said means for resiliently biasing said pusher member towards said endless belt comprises means for resiliently pivoting said pusher member about the journal axis.
Claim 5
Dependent Claim
22 words
A device as claimed in claim 1, wherein said pusher member is resiliently supported by compression springs located on said structural frame.
References Cited (Backward Citations)
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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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |