41 |
Shaped charge liner and method of manufacture |
US855806 |
1997-05-10 |
US6012392A |
2000-01-11 |
Kimball J. Norman; Dan W. Pratt |
Shaped charge liners are formed from an alloy of nickel, tin, and copper, which is first formed into a powder, and then pressed into strips. The pressed strips of powdered alloy are next sintered and then cold rolled. Thereafter, the powdered, pressed, and sintered alloy strips are formed into shaped charge liners, for example, by stamping. The shaped charge liners may be heat treated either before or after the forming step. |
42 |
Producing explosive-formed projectiles |
US535949 |
1990-05-21 |
US5792980A |
1998-08-11 |
Klaus Weimann |
A device for the production of explosive formed projectiles includes a cag with an explosive filling, an ignition device arranged at the bottom and a disc-shaped metal insert covering the top of the explosive filling. In order to produce several projectiles or a single projectile composed of several such projectiles with a large l/d ratio, the insert includes at least two discs, arranged directly behind each other. |
43 |
Shaped charges with plastic liner, concave recess and detonator means |
US587042 |
1996-01-16 |
US5705768A |
1998-01-06 |
Anthony Leonard Ey |
A shaped charge is provided which includes an elongate container or housing having a concave recess in an upper end thereof. Explosive is located or provided within the container and at least below the concave recess. Detonator means are provided within the container at or adjacent a lower end thereof and spaced apart from and below the concave recess and explosive located therebelow. |
44 |
Tungsten enhanced liner for a shaped charge |
US497259 |
1995-06-30 |
US5567906A |
1996-10-22 |
James W. Reese; Terry L. Slagle |
A liner for a shaped charge formed from a mixture of powdered tungsten and powdered metal binder. The liner is formed by compression of the mixture into a substantially conically shaped solid body. In a preferred embodiment of the invention, the mixture comprises approximately 80 percent by weight of tungsten and 20 percent of the powdered metal binder. In a specific embodiment of the invention, graphite powder is intermixed with the powdered metal binder and tungsten to act as a lubricant. The powdered metal binder preferably comprises a malleable, ductile metal such as lead, bismuth, tin, zinc, silver, antimony, cobalt, nickel or uranium. |
45 |
Hollow charge with detonation wave guide |
US700924 |
1984-11-02 |
US5259317A |
1993-11-09 |
Hendrik Lips |
A warhead having hollow charge, such as a bomblet as well as a large caliber armor-piercing projectile has an improved detonation wave guide arrangement which preferably produces a high pyrophoric effect at target impact.The detonation wave guide itself is made of an incendiary-active (flamable) material, whereby a strong exothermal reaction is released by shock waves at target impact in the binding substances which form the wave guide. By exclusively initiating this exothermal reaction and incendiary effect by means of shock waves a rapid and simple introduction of the reaction in a few microseconds is achieved. The binding substance consists of metal particles and gases embedded in matrix. These metal particles have a high combustion enthalpy and the matrix is made of an organic polymer. The shock waves cause a decomposition of the metal particles of the matrix and a simultaneous temperature increase and a chemical reaction is triggered, whereby by means of the reaction products the temperature is further increased and by virtue of the release of large heat energy even poorly flamable substances are burned. |
46 |
Copper alloys for shaped charge liners |
US620190 |
1990-11-28 |
US5098487A |
1992-03-24 |
Dennis R. Brauer; Frank N. Mandigo; Derek E. Tyler |
A metal liner for a shaped charge device having a ductile metal matrix and a discrete second phase is provided. The allow composition is selected so the second phase is molten when the liner is accelerated following detonation. The molten phase reduces the tensile strength of the matrix so that the liner slug is pulverized on striking a well casing. The slug does not penetrate the hole perforated in the well casing by the liner jet and oil flow into the well bore is not impeded. The liner is formed by directly casting the desired alloy to the desired shape. |
47 |
Warhead with metal coating for controlled fragmentation |
US81246 |
1987-06-29 |
US4858531A |
1989-08-22 |
Klaus Lindstadt; Karl Rudolf |
A warhead or horizontal fragmentation mine, which includes an explosive charge arranged within a housing, which is covered at the front end thereof with a concave or planar coating or cladding; and a method for producing the warhead. The coating is entirely, or at least overwhelmingly, constituted of a brittle heavy-metal or hard or carbide metal with a static fracture or breaking expansion of 15 or 25%, in which the coating is decomposed during the detonation into a large number of natural fragments or splinters of certain quantity, which spread out in a definite fragment cone or fragment wedge, and wherein the ratio of the quantity of the coating to that of explosive consists of approximately 1:0.4 to 1:0.6. |
48 |
Metal shaped charge liner with isotropic coating |
US947446 |
1986-12-29 |
US4766813A |
1988-08-30 |
Joseph Winter; Derek E. Tyler |
The present invention relates to a composite liner for a shaped charge device. The liner comprises a wrought metal or metal alloy substrate having a desired shape and configuration and a coating deposited on a surface of the wrought substrate. The coating comprises a substantially uniform, substantially homogeneous isotropic material having a relatively fine grain structure and a relatively smooth surface which facilitates forming a metal jet having improved performance and penetration. |
49 |
Inserts for coating an explosive charge, and forming a rod-shaped
projectile, and process for manufacture of inserts |
US886903 |
1986-07-16 |
US4714019A |
1987-12-22 |
Hendrik Lips; Joerg Peters |
A flat disk having differing material properties in the inner and outer regions, resulting in varying dynamic material behavior during explosion deformation and a process for making the same. In particular, the outer regions of the flat disk produced, have a greater material hardness than the central regions of the disk. |
50 |
Linear cutting charge |
US548672 |
1983-10-17 |
US4693181A |
1987-09-15 |
David A. Dadley; Peter J. Haskins |
The application discloses improvements in hollow charges for linear cutting or demolition purposes wherein a bar formed from a composite of explosive material and a first pliant material has a V-shaped groove with a liner formed from a composite of particulate metal and a second pliant material. The metal may be copper and preferably the first and second pliant materials include the same constituents. The charge may include a casing having a spacing portion having an engagement surface for presentation to a work surface, which engagement surface is parallel to the outer edges of the liner and spaced therefrom to maintain an optimum stand-off distance. The casing may further include a groove filling portion of low density material which may be integrally constructed with the casing from a flexible material such as expanded polyethylene. |
51 |
Explosive charge liner made of a single crystal |
US682786 |
1984-12-18 |
US4598643A |
1986-07-08 |
Roger R. Skrocki |
An improved liner for a shaped explosive charge has a metal side wall with an outer side surface which is adapted to be engaged by the explosive charge and an inner side surface which defines an outwardly flaring cavity. The side wall is formed of a single crystal of metal and is free of grain boundaries. The single crystal of metal is composed of atoms arranged as unit cells all having the same orientation relative to the central axis of the cavity. This tends to optimize the performance of the shaped charge and allows the designer of the shaped charged freedom to completely specify the crystallographic orientation of the side wall of the liner. |
52 |
Method of making particulate uranium for shaped charge liners |
US236249 |
1981-02-20 |
US4592790A |
1986-06-03 |
Alfred R. Globus |
A process for the production of depleted uranium metal particles comprising heating depleted uranium metal to red heat, rapidly chilling the heated metal, grinding the resulting brittlized metal to form powder size particles, annealing the particles and coating the particles with silver, copper, or lead, wherein the grinding and annealing are carried out in an inert argon atmosphere. The invention also contemplates the resulting depleted uranium metal powder, compositions containing the same as well as the liners for shaped charges formed therefrom. |
53 |
High lethality warheads |
US280585 |
1981-06-29 |
US4499830A |
1985-02-19 |
John N. Majerus; William P. Walters |
A shaped-charge warhead increases the lethality of the liner material by roducing a lethal material into an appropriate region of a jet penetrator so that the lethal material is projected on the shot-line ahead of a normally large slow-moving slug, or rearward portions of the stretching jet penetrator, without hindering the actual penetration process of an outer vehicle armor. The improved shaped-charge liner eliminates the necessity of using naturally pyroforic material or poisonous liquids. |
54 |
Shaped charge explosive unit and liner therefor |
US11661261 |
1961-06-12 |
US3136249A |
1964-06-09 |
POULTER THOMAS C |
|
55 |
Eutectic alloy shaped charge liner |
US85907459 |
1959-12-11 |
US3112700A |
1963-12-03 |
GEHRING JR JOHN W |
|
56 |
Perforating apparatus |
US65924157 |
1957-05-15 |
US3025794A |
1962-03-20 |
LEBOURG MAURICE P; FAGAN HERBERT C |
|
57 |
Liner for hollow charges |
US54371444 |
1944-07-06 |
US2605703A |
1952-08-05 |
LAWSON WALTER E |
|
58 |
Shaped charge and explosively formed penetrator liners and process for
making same |
US999751 |
1997-11-26 |
US6152040A |
2000-11-28 |
Michael A. Riley; Timothy J. Langan; David K. McNamara; Joseph R. Pickens |
A shaped charge or explosively formed penetrator liner and a method for producing the liner. The liner is preferably formed from a metal having a fine, uniform grain structure. The liner is preferably produced by an electron beam deposition process. |
59 |
High performance composite shaped charge |
US874759 |
1997-06-13 |
US5792977A |
1998-08-11 |
Manmohan S. Chawla |
A shaped charge for efficiently transferring energy from an explosive material to generate a deep penetrating jet. The shaped charge liner is formed with a hemispherical first section combined with an elongated second section. The liner second section can be formed as a truncated cone, trumpet, or other shape. The hemispherical first section collapses to generate a high velocity jet portion, and the second section collapses to generate an elongated, deep penetrating jet portion which follows the higher velocity jet portion. |
60 |
Tungsten enhanced liner for a shaped charge |
US678864 |
1996-07-12 |
US5656791A |
1997-08-12 |
James W. Reese; Terry L. Slagle |
A liner for a shaped charge formed from a mixture of powdered tungsten and powdered metal binder. The liner is formed by compression of the mixture into a substantially conically shaped solid body. In a preferred embodiment of the invention, the mixture comprises a range of approximately 70 to 90 percent by weight of tungsten and 30 to 10 percent of the powdered metal binder. In a specific embodiment of the invention, graphite powder is intermixed with the powdered metal binder and tungsten to act as a lubricant. The powdered metal binder preferably comprises a malleable, ductile metal such as lead, bismuth, tin, zinc, silver, antimony, cobalt, nickel or uranium. |