US4026119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for conveying a fluid between a subsea duct and a buoy
Assignee: SnamProgetti SpA
•
Filing: 1975-12-03
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Granted: 1977-05-31
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Expires: 1995-12-03
Abstract
Abstract For conveying a fluid from or towards a subsea duct by means of a buoy having universal type joints, the improvement consisting in that the joint pins and the buoy legs have hollow spaces or bores therein to allow fluid flow therethrough.
Inventors
- 👤 Giuseppe Dotti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/02; F16L27/04; B; B63; B63B; B63B22/00; B63B22/02; B63B22/021
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
100 words
A device for conveying fluid between a subsea duct and a buoy, comprising: a buoy having a conduit for conveying fluid, articulated hollow legs for anchoring said buoy, joints adjacent said buoy which connect said buoy to said legs and which have bores therethrough that connect the conduit of said buoy to the interior of said hollow articulated legs, a subsea duct which opens into said hollow articulated legs below said joints, and a passageway formed by each of said interconnected hollow legs and bores of each of said joints for conveying fluid between said buoy and said subsea duct.
Claim 2
Independent Claim
100 words
A device for conveying fluid between a subsea duct and a buoy, comprising: a buoy having a conduit for conveying fluid, articulated hollow legs for anchoring said buoy, joints adjacent said buoy which connect said buoy to said legs and which have bores therethrough that connect the conduit of said buoy to the interior of said hollow articulated legs, a subsea duct which opens into said hollow articulated legs below said joints, and a passageway formed by each of said interconnected hollow legs and bores of each of said joints for conveying fluid between said buoy and said subsea duct.
Claim 3
Dependent Claim
13 words
The device of claim 1, wherein said joints are of the cardan type.
Claim 4
Dependent Claim
61 words
The device of claim 2, wherein each of said cardan joints includes forked extensions and a cross pin connected to said extensions, said extensions and pin having bores therethrough for conveying fluid through said joint; and wherein a hollow swivel is connected to said cross pin and into the conduit of the buoy for conveying fluid between said joint and buoy.
Claim 5
Dependent Claim
26 words
The device of claim 3, wherein said joints include outer tubing which connects said bore in said forked extensions to said bore in said cross pins.
Claim 6
Dependent Claim
26 words
The device of claim 3, wherein bores extend through each forked extension which are open to said hollow legs and said bores in said cross pin.
Claim 7
Dependent Claim
17 words
The device of claim 1, wherein said joints are surrounded by a gasket which prevents fluid losses.
Claim 8
Dependent Claim
14 words
A device according to claim 1, characterized in that the joints are spherical joints.
Claim 9
Dependent Claim
16 words
A device according to claim 7, characterized in that the spherical joints are equipped with bellows.
Claim 10
Dependent Claim
44 words
A device according to claim 8 characterized in that the bellows of the spherical joints are made from materials selected from the group consisting of monel, stainless steel, special high resistance steels and corrosion resistant steels, nickel, special red alloys, special rubbers and elastomers.
Claim 11
Dependent Claim
33 words
A device according to claim 7, characterized in that the spherical seat of the joint is halved and the two halves are kept united together by a system of jaws having sloping seats.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |