EP0840691A1 - Spearhead anchor - Google Patents
Spearhead anchorInfo
- Publication number
- EP0840691A1 EP0840691A1 EP96901380A EP96901380A EP0840691A1 EP 0840691 A1 EP0840691 A1 EP 0840691A1 EP 96901380 A EP96901380 A EP 96901380A EP 96901380 A EP96901380 A EP 96901380A EP 0840691 A1 EP0840691 A1 EP 0840691A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- anchor
- point
- shovel
- tip
- chevron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241001449342 Chlorocrambe hastata Species 0.000 title claims description 7
- 230000035515 penetration Effects 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims 1
- 241001474374 Blennius Species 0.000 abstract 1
- 241000935974 Paralichthys dentatus Species 0.000 abstract 1
- 241000195493 Cryptophyta Species 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009933 burial Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- UJCHIZDEQZMODR-BYPYZUCNSA-N (2r)-2-acetamido-3-sulfanylpropanamide Chemical compound CC(=O)N[C@@H](CS)C(N)=O UJCHIZDEQZMODR-BYPYZUCNSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001669680 Dormitator maculatus Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 210000003899 penis Anatomy 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/30—Anchors rigid when in use
- B63B21/32—Anchors rigid when in use with one fluke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/38—Anchors pivoting when in use
- B63B21/40—Anchors pivoting when in use with one fluke
- B63B21/42—Anchors pivoting when in use with one fluke of ploughshare type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
- B63B2021/262—Anchors securing to bed by drag embedment
Definitions
- the anchor described is used to immobilize any type of boat or vessel in ports or anchorage areas.
- the "spearhead” anchor was designed to give priority to the three essential characteristics of an anchor:
- the pressure of the tip of the anchor (Kg / cm 2 ) must be greater than the resistance of the soil. So it is necessary. 1) reduce the contact surface: the tip should be as sharp as possible.
- the density of the surface layer of the bottoms is generally high, increasing with depth.
- pressure exerted by the point of the anchor will, in most cases, be greater than the resistance of the ground and the point of the anchor will bury immediately. The traction exerted by the ship, will contribute to the burial of the anchor.
- the anchor must be pointed, the point downwards, the point ensuring better penetration of the funds.
- the widest part of the point connected to the quasi-elliptical lateral part of the shovel constituting the working surface of the anchor, ensures the holding of the anchor in the layers of lower density.
- a .NACA type profile airplane wing
- a "corner” surface will see this coefficient vary from 0.70 to 1.00 depending on the value of the angle
- a flat surface reaches a value of 1.20
- a concave surface reaches a coefficient of 1, 70.
- the working surface of the "spearhead" anchor will therefore have a concave profile, ensuring the best holding power.
- the material of the anchor can be chosen:
- the ballast can be made of a piece of cast steel or cast lead.
- the total weight of the anchor will be staggered between different models ranging from 6 to 40 Kilos. , to meet the needs of yachting and coastal fishing; larger weight anchors which can be carried out for larger ships or thalasso-industrial installations, fish farms, drilling platforms, etc.
- the five component parts of the anchor will be cut by flame cutting, plasma cutting or any other appropriate means, the angles of the point and tailstock are made with the folder, the shape of the shovel can be obtained by successive folding at the folder o better, by stamping under high pressure press or forgeag to obtain a perfectly concave surface on sheets of medium thickness; On larger models, the angulation can be obtained by cutting and then welding the various elements at the desired angle.
- the rod of trapezoidal section may have the angles of the small base, rounded or bevelled to facilitate penetration.
- the steel anchors will be hot-dip galvanized, then the appropriate quantity of lead will be poured into the tailstock of the anchors.
- the lead ballast pa a part with the same characteristics obtained in foundry, this part being made solitary of the shovel and the heel of the rod, pa solder , so as to respect the "chevron" shape of the cutting of the point BB '.
- a variant of this anchor can be made with a removable orchard, to allow easier storage of the anchor in the bottom of the boat, this removable anchor can thus constitute a rescue anchor.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9500487A FR2729365B1 (en) | 1995-01-16 | 1995-01-16 | "FER DE LANCE" MARINE ANCHOR |
| FR9500487 | 1995-01-16 | ||
| PCT/FR1996/000049 WO1996022218A1 (en) | 1995-01-16 | 1996-01-11 | Spearhead anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0840691A1 true EP0840691A1 (en) | 1998-05-13 |
| EP0840691B1 EP0840691B1 (en) | 1999-04-21 |
Family
ID=9475209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96901380A Expired - Lifetime EP0840691B1 (en) | 1995-01-16 | 1996-01-11 | Spearhead anchor |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5934219A (en) |
| EP (1) | EP0840691B1 (en) |
| AU (1) | AU4542896A (en) |
| DE (1) | DE69602195T2 (en) |
| FR (1) | FR2729365B1 (en) |
| NZ (1) | NZ300632A (en) |
| WO (1) | WO1996022218A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6246671B1 (en) | 1998-03-17 | 2001-06-12 | Adtran, Inc. | ISDN terminal adapter-resident mechanism for automatically determining telecommunication switch type and generating associated service profile identifiers |
| US6098565A (en) * | 1999-04-01 | 2000-08-08 | O'neil, Sr.; Thomas E. | Retrievable vessel anchor with reliable grasping mechanism |
| IT1316780B1 (en) * | 2000-02-18 | 2003-05-12 | Enzo Caprioglio | ANCHORAGE GROUP FOR BOATS AND VESSELS IN GENERAL |
| FR2820108B1 (en) | 2001-01-30 | 2003-06-20 | Yvan Verra | MARINE ANCHOR |
| US6390011B1 (en) * | 2001-09-07 | 2002-05-21 | Jack Goodman | Smart anchor |
| ES2289246T3 (en) * | 2003-03-27 | 2008-02-01 | Alain Poiraud | ASYMMETRIC ANCHOR WITHOUT LASTRE. |
| DE202004007941U1 (en) * | 2004-05-14 | 2004-07-22 | Wagener & Simon Wasi Gmbh & Co. Kg | Improved design anchor has the relative positions of shaft and fluke optimised to fit into a compact space in the bows without a reduction in grip |
| USD684102S1 (en) | 2011-09-15 | 2013-06-11 | Yves Gelb | Marine anchor |
| US8950352B2 (en) | 2011-09-16 | 2015-02-10 | Peter Kevin Smith | Anchor |
| US8869728B1 (en) | 2012-03-16 | 2014-10-28 | Josh Paugh | Boat anchor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE617814C (en) * | 1933-03-21 | Geoffrey Ingram Taylor | anchor | |
| FR770465A (en) * | 1933-03-21 | 1934-09-14 | Improvements to mooring anchors | |
| US3766877A (en) * | 1970-09-21 | 1973-10-23 | Exxon Production Research Co | Mooring anchor |
| AU462727B2 (en) * | 1971-02-05 | 1975-06-19 | Simpson-Lawrence Limited | Improvements in or relating to anchors for marine use |
| FI71701C (en) * | 1980-09-25 | 1987-02-09 | Den Haak Rob Van | Ankare. |
| US4802434A (en) * | 1985-09-05 | 1989-02-07 | Brupat Limited | Anchor |
| GB9125241D0 (en) * | 1991-11-27 | 1992-01-29 | Brupat Ltd | Drag embedment marine anchor |
| US5188055A (en) * | 1992-01-08 | 1993-02-23 | Kershner Gary P | Adjustable boat anchor |
| EP0596157B1 (en) * | 1992-11-02 | 1997-05-28 | Single Buoy Moorings Inc. | Anchor for heavy loads |
-
1995
- 1995-01-16 FR FR9500487A patent/FR2729365B1/en not_active Expired - Lifetime
-
1996
- 1996-01-11 WO PCT/FR1996/000049 patent/WO1996022218A1/en not_active Ceased
- 1996-01-11 US US08/875,536 patent/US5934219A/en not_active Expired - Lifetime
- 1996-01-11 AU AU45428/96A patent/AU4542896A/en not_active Abandoned
- 1996-01-11 NZ NZ300632A patent/NZ300632A/en unknown
- 1996-01-11 DE DE69602195T patent/DE69602195T2/en not_active Expired - Lifetime
- 1996-01-11 EP EP96901380A patent/EP0840691B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9622218A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2729365B1 (en) | 1997-08-22 |
| US5934219A (en) | 1999-08-10 |
| NZ300632A (en) | 1998-04-27 |
| FR2729365A1 (en) | 1996-07-19 |
| WO1996022218A1 (en) | 1996-07-25 |
| EP0840691B1 (en) | 1999-04-21 |
| DE69602195T2 (en) | 2000-11-23 |
| DE69602195D1 (en) | 1999-05-27 |
| AU4542896A (en) | 1996-08-07 |
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