Propellant-actuated deep water anchor
阅读：599发布：2021-12-01
专利汇可以提供Propellant-actuated deep water anchor专利检索，专利查询，专利分析的服务。并且A propellant-actuated direct embedment anchor which utilizes simplified structural shapes and provides a rapid keying feature which allows the most efficient use of penetration energy. The anchor system has two major parts; a launch vehicle and a projectile which include a piston and fluke. Two different fluke designs are provided to satisfy the realm of anticipated seafloor conditions (sand, clay, and rock). The flukes designed for said and clay are similarly configured plate-like projectiles which only differ in length. The fluke designed for rock anchoring is a three-fin, arrowhead-shaped projectile, specially configured to penetrate rock and resist a specified pull-out load. The launch vehicle consists of a launching system, a reaction vessel and a firing mechanism. The firing mechanism is comprised of a weighted touch-down rod with a square base pad and a safe-and-arm device. The sand and clay flukes use a quick-keying design to maximize efficiency and holding power after embedment.，下面是Propellant-actuated deep water anchor专利的具体信息内容。
1. A propellant actuated direct embedment anchor system comprising: a. a launch vehicle having a propulsion system comprised of a gun barrel and firing mechanism attached to a reaction vessel; b. a piston means engaging the gun barrel; c. a fluke assembly attached to said launch vehicle by shear pins and a surface of said fluke assembly held tightly in contact with said piston means prior to firing; said piston means providing an inertial force to said fluke assembly after firing and during penetration of the seafloor by pushing against the fluke assembly surface which is held in contact with said piston means without mechanical connection at the point of contact between said surface and piston means, contact between said piston means and said fluke assembly being maintained during initial and final stages of seafloor penetration by the drag on said fluke assembly being greater than on said piston means; d. said fluke assembly having a configuration which ensures the centers of mass are situated beneath the piston means during firing and penetration to guarantee straight, uniform travel into the seafloor by the inertial force applied thereto from said piston means; e. means attached to said piston means operable to cause said piston means to separate from said point of contact between said fluke assembly surface and said piston means and to initiate rotation of the fluke assembly from a vertical position to a position of maximum uplift resistance after penetration and embedment is complete.
2. The anchor system of claim 1 wherein the propulsion system firing mechanism includes a. a safe-and-arm device; b. a power package for activating the safe-and-arm device; c. a fluke mounted magnetic switch for energizing the power package; d. a freely sliding touchdown rod attached to the fluke fin and extending beyond the fluke tip; said touchdown probe having a magnet which moves in close proximity to the magnetic switch to energize it when the touchdown rod contacts the seafloor.
3. The anchor system of claim 1 wherein the reaction vessel is comprised of a steel tube welded to a plate and having sufficient mass to provide a ratio of launch vehicle mass to piston means and fluke mass of up to three.
4. The anchor system of claim 1 wherein the fluke assembly is of the type for direct embedment in sediment seafloors and includes, a. a plate bent to form an included angle of approximately 140* ; said plate having a cutout portion at the rear to accommodate the piston means which pushes against said fluke assembly to impart the inertial force to said fluke assembly; b. a receptacle attached to the bent plate at the foremost end of the cutout portion against which the inertial force from said piston means can be applied.
5. The anchor system of claim 4 wherein the bent plate provides a fluke length to width ratio of approximately 2.
6. The anchor system of claim 4 wherein the means for rotating the fluke to the maximum uplift resistance position comprises: a. means for providing a keying arm having a predetermined keying eccentricity; and b. a keying mechanism attached to said keying arm means.
7. The anchor system of claim 6 wherein said keying arm means is a vertical plate attached to said bent plate to provide a keying arm eccentricity of approximately 0.3 of the fluke length.
8. The anchor system of claim 7 wherein said keying mechanism is comprised of: a. a rotatable coupling link attached to the vertical plate; b. a rotatable link bar attached to the coupling link; c. a piston means extension arm attached to the rotatable link bar with one end fitted into and attached to the piston; means and the opposite end of the piston means extension arm adapted to mate with the receptacle on the fluke and remain in contact with the receptacle during penetration of the seafloor; and d. a downhaul cable attached to the piston means extension arm so that a small pull on the cable causes the piston means extension arm to separate from the receptacle to initiate keying whereby the fluke is rotated to its position of maximum uplift resistance.
9. The anchor system of claim 1 wherein the fluke assembly is an arrowhead-shaped projectile for direct embedment in rock seafloors and comprises: a. a central shaft having a nose of predetermined taper; b. three fins approximately equally spaced on said central shaft, one of said fins being slightly shorter than the other two; and c. A cable socket provided in the shortest fin to provide eccentricity after embedment.
10. The anchor system of claim 9 wherein the nose on the central shaft has a 3 to 1 taper and the nose tip is blunted to prevent bending during embedment.
11. The anchor system of claim 10 wherein the exterior surface of the fluke assembly is roughened to increase holding power.
12. A fluke assembly of the type for direct embedment in sediment seafloors comprising: a. a piston for applying an inertial force to the fluke assembly during penetration of the seafloor; b. a fluke formed from a plate bent to provide an included angle such that the centers of mass are situated directly below the piston to ensure straight uniform travel into the seafloor; said plate having a cutout portion at the rear to accomodate the piston; c. a receptacle attached to the fluke at the foremost end of the cutout portion against which the inertial force of the piston can be applied; d. a keying assembly for rotating the fluke from the penetrating position to a position of maximum uplift resistance; e. said keying assembly comprising means for providing a keying arm having a predetermined eccentricity, and a keying mechanism attached to said keying arm means; f. said keying arm means being a vertical plate attached to the fluke to provide a keying arm eccentricity of approximately 0.3 of the fluke length.
13. The fluke assembly of claim 12 wherein the fluke is formed to provide an included angle of approximately 140*.
14. The fluke assembly of claim 13 wherein the fluke has a length to width ratio of approximately 2.
15. The fluke assembly of claim 12 wherein said keying mechanism is comprised of: a. a rotatable coupling link attached to the vertical plate; b. a rotatable link bar attached to the coupling link; c. a piston extension arm attached to the rotatable link bar with one end fitted into and attached to the piston; the opposite end of the piston extension arm adapted to mate with the receptacle on the fluke and remain in contact with the receptacle during penetration of the seafloor; and d. a downhaul cable attached to the piston extension arm sO that a small pull on the cable causes the piston extension arm to separate from the receptacle to initiate keying whereby the fluke is rotated to its position of maximum uplift resistance.
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