US3841249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating systems of the barge type, especially for drilling in deep water
Assignee: D Equipement Mecaniques & Hydr
•
Filing: 1972-05-09
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Granted: 1974-10-15
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Expires: 1992-05-09
Abstract
Abstract The system comprises a base in the shape of a polygon with flattened hollow cross-section. Piers are welded on this space, inclined and arranged as a crown, the assembly supporting an upper platform. The polygon shape base can be replaced by a type of catamaran.
Inventors
- 👤 R Vilain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:42
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/44; B63B35/4413; B63B1/00; B63B1/02; B63B1/10; B63B1/107; B63B1/04; B63B2001/044; B63B1/12; B63B2001/128
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
Floating system, of the barge type, said system having a horizontal support and for its buoyancy, stability and crossbracing means consisting essentially of an assembly of two groups of hollow tubular elements, a first said group of tubular elements forming an annular shaped polygon base in a horizontal plane, and a second said group of hollow tubular elements constituting piers rising obliquely from said base, said assembly forming a cross-braced floating structure, said second group of hollow tubular elements extending between said base and said horizontal support.
Claim 2
Dependent Claim
87 words
Floating system, of the barge type, said system having a horizontal support and for its buoyancy, stability and crossbracing means consisting essentially of an assembly of two groups of hollow tubular elements, a first said group of tubular elements forming an annular shaped polygon base in a horizontal plane, and a second said group of hollow tubular elements constituting piers rising obliquely from said base, said assembly forming a cross-braced floating structure, said second group of hollow tubular elements extending between said base and said horizontal support.
Claim 3
Dependent Claim
18 words
System according to claim 1, wherein the piers are slightly inclined towards the inside of the annular base.
Claim 4
Dependent Claim
28 words
System according to claim 1, wherein said piers are arranged to form triangles, said triangles having tops arranged around an annular contour and linking elements connecting said tops.
Claim 5
Dependent Claim
27 words
System according to claim 1, wherein said piers form a trellis, and wherein said horizontal support is a platform supported by the upper portion of the trellis.
Claim 6
Dependent Claim
33 words
System according to claim 1, wherein the base is constituted by a plurality of welded elements each forming one of the sides as well as the two adjacent half-sides of the polygon base.
Claim 7
Dependent Claim
16 words
System according to claim 5, wherein said welded elements of the base are welded under water.
Claim 8
Dependent Claim
22 words
System according to claim 5, wherein the constituent elements of the base comprise tubular feet to serve as roots for the piers.
Claim 9
Dependent Claim
26 words
System according to claim 1, wherein the annular shaped base is arranged in the form of a catamaran, having two parallel hulls connected by transverse elements.
Claim 10
Dependent Claim
17 words
Floating system according to claim 1, comprising a drilling rig, wherein said cross-braced structure forms a trellis.
References Cited (Backward Citations)
US3093167A
Cited
US3154039A
Cited
US3407610A
Cited
US3575005A
Cited
US3447502A
Cited
US3577946A
Cited
US3580207A
Cited
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 |