US3841357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piping between a buoy and a stationary conduit
Assignee: IHC Holland NV
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Filing: 1973-02-21
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Granted: 1974-10-15
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Expires: 1993-02-21
Abstract
Abstract An improved connection between a buoy and a stationary underwater conduit comprises two rigid tubes the upper of which is more nearly vertical than the lower. The tubes are flexibly connected with the buoy and the conduit and each other by means of cardan joints. In addition, the lower tube is provided with a single joint whose axis lies in the vertical plane of the lower tube and is preferably perpendicular to the axis of the lower tube and is preferably disposed close to the cardan between the two tubes. Flexible hoses interconnect the parts adjacent the joints.
Inventors
- 👤 Heijst W Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:27
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0861; B; B63; B63B; B63B22/00; B63B22/02; B63B22/021
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
Piping between a buoy and a conduit anchored on the ocean bottom or the like, comprising two rigid tubes the upper of which is more nearly vertical than the lower, a cardan joint between the buoy and the upper tube, a cardan joint between the two tubes, a cardan joint between the lower tube and the conduit, a joint flexible about a single axis at one end of the lower tube, and flexible hoses connecting said tubes in the region of said joints.
Claim 2
Dependent Claim
83 words
Piping between a buoy and a conduit anchored on the ocean bottom or the like, comprising two rigid tubes the upper of which is more nearly vertical than the lower, a cardan joint between the buoy and the upper tube, a cardan joint between the two tubes, a cardan joint between the lower tube and the conduit, a joint flexible about a single axis at one end of the lower tube, and flexible hoses connecting said tubes in the region of said joints.
Claim 3
Dependent Claim
18 words
Piping as claimed in claim 1, said single axis being perpendicular to the axis of said lower tube.
Claim 4
Dependent Claim
17 words
Piping as claimed in claim 1, said single axis being disposed adjacent said cardan between said tubes.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |