With Bursting Charge Cushioning Means Patents (Class 102/479)
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Patent number: 8978560Abstract: A nanocomposite explosive liner for a main fill charge in a warhead may include a secondary high explosive having a mean crystal size less than about one micron, and a binder. The porosity of the liner may be in a range of about 1% to about 20%. A weight percentage of the binder in the liner may be in a range of about 1% to about 20%.Type: GrantFiled: September 10, 2010Date of Patent: March 17, 2015Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: Victor Stepanov, Ernest L. Baker
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Patent number: 8770110Abstract: A warhead 10 with selectable output can provide either a high-yield mode for a wide area of damage or a low-yield mode for restricting damage to a confined area. The warhead 10 includes a casing 14 having one or more partitions 16 that separate the casing 14 into multiple compartments. Each compartment includes an explosive charge. The multiple compartments include at least a first compartment 20 with a first explosive charge 22 and a first igniter 30, and a second compartment 24 separate from the first compartment 20 with a second explosive charge 26 and a second igniter 32. The second compartment 24 has a deflagration charge 34 for selectively destroying the second explosive charge 26 without detonation.Type: GrantFiled: March 16, 2012Date of Patent: July 8, 2014Assignee: Raytheon CompanyInventors: Richard Ames, Craig L. Wittman
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Patent number: 7992498Abstract: A reduced collateral damage bomb (RCDB) bomb casing is described and disclosed along with the system and method for making it. The RCDB bomb casing may be formed from conventional or penetrating warhead bomb casings. The RCDB bomb casing has a filler material/materials disposed on the interior walls that will assist in controlling the collateral damage caused by the finished bomb but not prevent the appropriate destructive power being delivered to a selected target.Type: GrantFiled: August 24, 2007Date of Patent: August 9, 2011Inventors: James D. Ruhlman, Blake K. Thomas
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Publication number: 20100242773Abstract: A modified projectile round which is configured to function with a propellant cartridge such as described in U.S. Pat. No. 7,004,074. The projectile assembly uses a High-Low gas pressure cartridge to launch the projectile. When the high pressure cartridge is ignited, hot propellant gases rupture a burst cup and shoot propellant gases toward the aft end of the projectile. The hot propellant gases impinge against a delay carrier located in the aft end of the projectile. The contents of the delay carrier are thereby ignited. The delay carrier includes one or more delay columns ultimately terminating in an igniter charge. The delay columns burn as the projectile is in flight. A specified amount of time later, the igniter charge ignites an ignitable payload—such as a marker flare candle.Type: ApplicationFiled: June 6, 2007Publication date: September 30, 2010Inventor: Bruce G. Van Stratum
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Publication number: 20090205529Abstract: A kinetic energy rod warhead includes a projectile core which includes a plurality of projectiles and an explosive charge about the core. There is at least one detonator for the explosive charge, and at least one wave shaper in the explosive charge or between the explosive charge and the core and having an apex adjacent the detonator.Type: ApplicationFiled: February 17, 2005Publication date: August 20, 2009Inventor: Richard M. Lloyd
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Patent number: 7114449Abstract: A method for producing a large-caliber, high-explosive projectile (1, 1?), and a projectile formed according the method, having a projectile casing (2, 2?) that surrounds a chamber (6, 6?) filled with an explosive charge (9, 9?), and that has a mouth (5, 5?) at its tip that can be sealed, and through which the explosive charge (9, 9?) is inserted into the chamber (6, 6?) of the high-explosive projectile (1, 1?). The explosive charge (9, 9?) is disposed in a plastic casing (8), comprised of an elastic material, inside the chamber of the high-explosive projectile (1, 1?). Additional tensioning means (11, 11?, 17, 17?) are provided to compensate for the varying volume of the explosive charge (9, 9?) relative to the projectile casing (2, 2?) if the temperature fluctuates dramatically and maintain the explosive charge (9, 9?) under a pre-stress, particularly when using a plastic bound explosive charge (9, 9?).Type: GrantFiled: September 30, 2004Date of Patent: October 3, 2006Assignee: Rheinmetall W & M GmbHInventor: Ernst-Wilhelm Altenau
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Patent number: 6283036Abstract: This invention involves a hard target penetrating warhead designed to produce a variable explosive discharge. A standard warhead casing is divided into several compartments with each compartment separated by a shock-absorbing shield. Explosive fill in contained within each compartment. The shock-absorbing shield inhibits the dynamic shock produced by detonating a compartment, thus preventing sympathetic detonation of adjoining compartments. As a result, the size of an explosive blast is controlled by detonating the explosive fill, in a set number of compartments. Each compartment also contains an igniter element, which initiates a slow burn of undetonated explosive fill.Type: GrantFiled: March 20, 2000Date of Patent: September 4, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventor: Terrence Lane Munsinger
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Patent number: 5864086Abstract: A spin-stabilized projectile containing a payload is presented. The projectile includes a projectile body with a payload chamber that may be laterally defined by a projectile casing, on top by an axial fixing device for a payload disposed in the payload chamber, and on the bottom, by a dividing wall. The projectile casing may include axial grooves on the inside, which on the contribute to the fixing of the payload and include intended break zones for freeing the payload. Below the dividing wall, an opening charge may be disposed, which includes complete radial contact and is axially spaced apart from the dividing wall by a damping device. The detonation of opening charge causes the projectile casing to immediately split open at the intended break zones to release, by centrifugal force, the payload from the payload chamber. The damping device prevents the payload from being damaged in the region of the dividing wall and prevents the release of the payload from being interrupted.Type: GrantFiled: March 23, 1998Date of Patent: January 26, 1999Assignee: Oerlikon Contraves Pyrotec AGInventor: Peter Ettmuller
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Patent number: 5698814Abstract: A penetrating bomb weapon comprising a long hollow cylinder constructed of high strength steel or similar material and including a pointed nose to aid in penetration of media such as concrete, soil, steel or a hardened surface. The cylinder contains an insensitive explosive that is separated into segments by shock attenuating materials so that one segment of the cylinder may detonate without detonating or destroying adjacent segments. The number of segments may be two or more depending on the complexity of the target to be attacked. Initiation of the main charge within each segment is achieved using explosive boosters positioned so that shocks transferred to adjacent segments, and the initiation train of these segments, is minimized. Separation of the segments is accomplished using explosive cutter charges which perforate and/or spall through the case wall of the penetrator bomb.Type: GrantFiled: January 11, 1996Date of Patent: December 16, 1997Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Gary H. Parsons, Joseph Gregory Glenn
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Patent number: 5686692Abstract: A follow-through grenade is provided which utilizes a primary fuze to trir both the main warhead and a delayed secondary fuze system. The main warhead explosion is used to breach barriers behind which enemy personnel are located. When the primary explosion occurs, the primary fuze simultaneously activates a delay timer and slide detonator. The slide detonator provides a means to keep the secondary explosive in a safe mode until the explosion of the primary warhead. The delay timer triggers the follow-through explosion after the primary explosion has breached the barrier. This behavior allows the follow-through device to penetrate the barrier and explode on the far side of the barrier for maximum effectiveness against personnel located behind the barrier. The present invention uses a standard dual mode fuze as its activator and is based on the McDonnell Douglas Shoulder-launched Multipurpose Assault Weapon (SMAW).Type: GrantFiled: September 30, 1996Date of Patent: November 11, 1997Assignee: The United States of America as represented by the Secretary of the NavyInventor: Fred W. Watson, Jr.
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Patent number: 5133259Abstract: A pyrotechnically initiated explosive projectile has coaxially arranged, a nose incendiary, a penetrator core, a high explosive, and an overall jacket. A seal ring is installed between the nose incendiary and the penetrator core to preclude relative movement between the core and the jacket during projectile assembly, acceleration and spin up from prematurely igniting the incendiary charge. The seal ring has a front collar portion which preferably has a diameter greater than that of the inside diameter of the jacket so that the collar scrapes the inside wall of the jacket during insertion to remove incendiary residual so that no incendiary can lodge between the jacket and the penetrator core.Type: GrantFiled: June 12, 1990Date of Patent: July 28, 1992Assignee: Olin CorporationInventor: David K. Schluckebier
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Patent number: 5107766Abstract: A follow-thru grenade for military operations in urban terrain uses a microsecond delay fuzed warhead to breach a target will to allow a deflector protected anti-personnel millisecond delay fuzed grenade to proceed through the wall breach to attach enemy personnel behind the wall.Type: GrantFiled: July 25, 1991Date of Patent: April 28, 1992Inventors: Harold R. Schliesske, William Moscatiello, deceased, by Caroline Moscatiello, Administratrix
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Patent number: 5000095Abstract: A projectile with an ejecting charge for the expulsion of a payload. The ejecting charge effectively develops a pressure which is of sufficient duration and adequately high for effectuating the expulsion of the payload; however, wherein the casing thereof will not burst into the kind of fragments which conceivably can damage the payload. A receiving member for the ejecting charge is mounted within the projectile, which receiving member withstands the development of the pressure encountered during the combusting of the ejecting charge; wherein that the receiving member possesses a multiplicity of apertures through which there discharges the propellent gas which is developed during the combustion of the ejecting charge, and wherein the ejecting charge is inserted into a thin-walled cup contained in the receiving member.Type: GrantFiled: October 3, 1989Date of Patent: March 19, 1991Assignee: Diehl GmbH & Co.Inventors: Gerald Rieger, Helmut Hammer, Erich Bock
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Patent number: 4876964Abstract: A projectile and method of making it having a forward end portion which comprises a hollow, metallic nose portion (1) containing a charge (3) adapted to detonate by impact against a target without the use of a fuse. In order to achieve safeguard against initiation when the impact velocity is low the cavity in the nose portion, in a distance from the forwardmost part thereof, is covered by a liner (4) of a softer material than the metal of the nose portion. The liner may be of plastic material.Type: GrantFiled: July 25, 1988Date of Patent: October 31, 1989Assignee: Raufoss A/SInventors: Kare R. Strandli, Svein T. Halvorsen
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Patent number: 4615272Abstract: A general purpose aerial bomb and a thermoplastic liner therefor consisting essentially of a melt blend of polypropylene and polybutene.Type: GrantFiled: September 12, 1984Date of Patent: October 7, 1986Assignee: The United States of America as represented by the Secretary of the Air ForceInventor: Stephen A. Aubert
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Patent number: 4382409Abstract: Longitudinal stresses in the explosive grain of a rapidly accelerated high xplosive projectile are absorbed in longitudinal reinforcement members and are transferred therefrom to the casing of the projectile. Transmission of the acceleration load from the grain to the longitudinal reinforcement members may be by friction, adhesive bonding or by area mismatch. A stress decoupling layer in the aft end of the projectile may be employed for matrix stress decoupling.Type: GrantFiled: October 30, 1980Date of Patent: May 10, 1983Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Bruce P. Burns
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Patent number: 4365560Abstract: The fin-stabilized projectile has an ogival projectile body having a nose portion and a base portion joined to a tail tube having a finned tailed unit. The nose and base portions are fixedly secured to respective ends of an internal connecting tube. The tube has a plurality of recesses disposed around the peripheral outer surface of the internal connecting tube. A bursting charge is formed along the outer peripheral surface of the connecting tube and the material used to form the bursting charge fills the recesses to provide a distribution of thrust forces along the length of the bursting charge, which is disposed between the nose and base portions.Type: GrantFiled: September 8, 1980Date of Patent: December 28, 1982Assignee: Etablissement SalgadInventor: Amos Frostig
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Patent number: H2025Abstract: This invention involves a hard target penetrating warhead designed to penetrate several layers of a target. A standard warhead casing is divided into several compartments with each compartment separated by a shock-absorbing shield. Explosive fill in contained within each compartment. The shock-absorbing shield inhibits the dynamic shock produced by detonating a compartment, thus preventing sympathetic detonation of adjoining compartments. Each compartment also contains a delay element, which permits each compartment to be ignited at the desired time. This allows the warhead to destroy a layer of a target then proceed to the next layer or layers, eliminating the need for several missiles to destroy the entire target.Type: GrantFiled: March 20, 2000Date of Patent: June 4, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventor: Terrence Lane Munsinger