Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8117966 | Stun grenade A stun grenade that provides a flash and an associated loud report without use of pyro-ignition sources. The flash is generated by discharge of a conventional flash bulb. The loud, explosive noise comes from rupturing of an inflatable bag at a predetermined rupture ... | 02/21/2012 |
| 7963227 | Multiple report stun grenade The present invention overcomes the limitations of the prior art by providing a stun grenade device with an elongated cylindrical body having a cylindrical sidewall and opposed top and bottom end faces. The body includes a delay chamber containing a delay material, ... | 06/21/2011 |
| 7958827 | Non-pyrotechnic explosion simulation device In example embodiments, a device for producing a simulated explosion that can be used with a soda bottler or other commonly available containers. A coupler couples a rupturable container to a non-pyrotechnic explosive device. ... | 06/14/2011 |
| 7905179 | Non-pyrotechnic explosion device A “non-pyrotechnic explosion device” closely replicates in sound and visual cue a “real” exploding device, but without the accompanying safety concerns. This device is not only realistic and safe, but is inexpensive to operate and maintain, durable, and easy... | 03/15/2011 |
| 7721651 | Irritation member Disclosed is an irritation grenade (1) comprising a receptacle (2) with at least one compartment (12) within which an effective charge (3) is accommodated and which ends in one respective discharge port (21, 22) on opposite sides o... | 05/25/2010 |
| 7644663 | Method of making inactive ballistic exercise elements and inactive ballistic element made by said method An inactive aerial ballistic element for exercises includes a main hollow body and a ballast element. The main hollow body has an ogive, disposed in the front portion, and a closure bottom, disposed in the rear portion. The ballast element is disposed in the main ho... | 01/12/2010 |
| 7617778 | Impact cartridge unit for military exercise An impact cartridge unit for military exercise including a cartridge including a propulsive agent and on top thereof a grenade simulating member simulating a low velocity grenade to be fired by a firearm or the like. The grenade simulating member includes an arrange... | 11/17/2009 |
| 7444938 | Paintball grenade A paintball grenade having an outer bladder and an inner bladder. The outer bladder has a first open end, an opposite second open end, and a cavity therethrough. The inner bladder has a closed end and an open end. The inner bladder is capable of being inserted into ... | 11/04/2008 |
| 7418904 | Inert ballistic element and process of manufacture The invention relates to an inert ballistic element and to a method for manufacturing it. Said method comprises the steps of: preparing a cylindrical tube, the ratio between the thickness and the outside diameter of said tube being equal or greater than 0.07; heatin... | 09/02/2008 |
| 7387073 | Explosive training device An explosive training device is described and which includes a main body defining an internal cavity, and wherein a plurality of elongated channels extend through the main body and communicate with the internal cavity; and an explosive charge is received within the ... | 06/17/2008 |
| 7360489 | Non-lethal cargo projectile A non-lethal cargo projectile comprises a projectile body; a fuze adapter attached to a front of the projectile body; a fuze attached to the fuze adapter; a boattail attached to a rear of the projectile body; a pressure tube extending from the fuze adapter to the bo... | 04/22/2008 |
| 7338343 | Toy grenade A toy grenade has a container enclosed in a casing consisting of two separable half oval-shaped casings. The container is filled with a mixture of powder and color dye and compressed air. The top of the container is normally retained by a spring biased elongated rod... | 03/04/2008 |
| 7322296 | Training grenade A training grenade includes a main body, a cartridge chamber removably connected to the main body, a firing pin mechanism for actuating the cartridge and a toggle for operating the firing pin mechanism, the toggle being contained within the main body. ... | 01/29/2008 |
| 7314006 | Nonlethal canister tank round A nonlethal canister tank round comprising a cartridge having a combustible case and containing propellant; a canister projectile attached to the cartridge, the canister projectile being generally cylindrical, comprising high density polyurethane foam and including ... | 01/01/2008 |
| 7288016 | Igniter mechanism for toy hand grenade The present invention relates to an igniter mechanism for a toy hand grenade which comprises a pull string ignition assembly, a housing that encases the pull string ignition assembly and a stopper that is located in the housing. The igniter mechanism may meet the re... | 10/30/2007 |
| 7275486 | Hand grenade simulating device A hand grenade simulating device includes a first shell filled with a marking filler, a second shell disposed in the first shell for receiving a percussion-triggered charge, a striking member which is remote from the charge in a ready position and which is movable t... | 10/02/2007 |
| 7261041 | Non-pyrotechnic explosion device A “non pyrotechnic explosion device” closely replicates in sound and visual cue a “real” exploding device, but without the accompanying safety concerns. This device is not only realistic and safe, but is inexpensive to operate and maintain, durable, a... | 08/28/2007 |
| 7237489 | Projectile head for a training cartridge A projectile head is provided for a training cartridge having a propulsion unit, with an integrated projectile tail section, which can be used equally for training cartridges as well as combat cartridges of the same caliber size, wherein the projectile tail section ... | 07/03/2007 |
| 7225741 | Reduced energy training cartridge for self-loading firearms A two piece, two-stage, rechargeable, reusable, reduced-energy mechanically operating cartridge is provided for launching a bullet of various compositions from a dedicated or modified firearm. The cartridge unit is comprised of a primary case, a piston sleeve, a pro... | 06/05/2007 |
| 7207518 | Cartridge with fin deployment mechanism A projectile for a weapon comprises an axially movable firing pin, an initiator actuable when impinged by the firing pin, a plurality of external peripheral fins movable from a radially inward position to a radially outward position when the projectile leaves the we... | 04/24/2007 |
| 7191708 | Flash and sound emitting diversion grenade A diversion grenade (200) comprising: a transparent body (102) in which is located one or more charges of flash material (104); an internal power supply (114); a control circuit (126) that is responsive to one or more inputs, the c... | 03/20/2007 |
| 7190302 | Sub-surface radar imaging Detailed is radar imaging apparatus including a single transmit antenna and at least one receive antenna, scanning apparatus (e.g. a pantograph) for mechanically scanning the antennas over a surface of interest, position providing apparatus (e.g. a computer driving ... | 03/13/2007 |
| 7173540 | Flash-bang projectile A flash-bang projectile that generates one or more noise pulses and one or more flashes of light. In generating a noise pulse, the flash-bang projectile provides a housing that includes a gas chamber that entraps air. The gas chamber includes a compression device th... | 02/06/2007 |
| 7165496 | Piston head cartridge for a firearm A firearm cartridge is provided with a case body and a piston head. The piston head is movably engaged with a rearward end of the case body. The piston head seals the rearward end of the case body to contain propellant gases in the case body when the firearm cartrid... | 01/23/2007 |
| 7133166 | Scan to cluster print structure and methodology A document printing system and methodology wherein plural, potentially useable printers are reviewed in a preliminary discovery process to assess (1) which ones are currently available for use, and (2) of these, which have the best-suited operational characteristics... | 11/07/2006 |
| 7124690 | Smoke producing mortar cartridge A mortar cartridge generates effective white or colored smoke obscuration with reduced adverse environmental impact and collateral damage, and provides an improved drag assembly that reduces drift during projectile descent and improves targeting. ... | 10/24/2006 |
| 7083414 | Explosion simulation device An explosion simulation device comprising an elongated body formed with a hollow chamber, the body being formed with end apertures at opposite ends thereof and a plurality of radially-directed side apertures along an axial length thereof, the end apertures and side ... | 08/01/2006 |
| 7059251 | Propelling charge support for a mortar cartridge A propelling charge support comprises horseshoe-shaped clips for engaging the tail fin and holding the propelling charges together for protection, a rounded saddle for holding the propelling charges of the cartridge, and winged edges to protect the propelling charge... | 06/13/2006 |
| 7059233 | Tungsten-containing articles and methods for forming the same Tungsten-containing articles and manufacturing processes for tungsten-containing articles. The articles may include firearms projectiles, such as shot, shot slugs, bullets, big game bullets, lead-equivalent bullets, black powder bullets, etc.; radiation shields; and... | 06/13/2006 |
| 7047886 | Method and apparatus for removing obstructions in the mines The present invention is directed to a system for fragmenting rock obstacles and obstructions in mines. The system uses a projectile having a flat or concave nose and a detonating device that has a safety pin to prevent a striker from prematurely igniting the primer... | 05/23/2006 |
| 7040236 | Environmentally-friendly training hand grenade and manufacturing method of the same Disclosed is an environmentally-friendly training hand grenade and a method of manufacturing the same. The training hand grenade is advantageous in that it is not necessary to recover fragments, generated by the explosion of the training hand grenade after use, beca... | 05/09/2006 |
| 7024998 | Projectile with propelling charge holder A projectile, such as a mortar projectile, includes a self-discarding or self-consumable propelling charge holder. A self-discarding propelling charge holder is made up of multiple segments. The propelling charge holder is maintained in place during launch by an ign... | 04/11/2006 |
| 7025000 | Mechanism for reducing the vulnerability of high explosive loaded munitions to unplanned thermal stimuli A new mechanism substantially reduces the vulnerability of explosive load munitions to thermal stimuli, such as fire or heat during transport and storage, thus enhancing personnel safety and the survivability of adjacent munitions. The mechanism includes a threaded ... | 04/11/2006 |
| 6983700 | Variable drag projectile stabilizer for limiting the flight range of a training projectile A variable drag projectile stabilizer is utilized by a training projectile to match the trajectory of a tactical projectile for up to 3 km while having a range limitation of 8 km. The stabilizer applies supersonic flow phenomena to alter the aerodynamic characterist... | 01/10/2006 |
| 6955125 | Practice projectile with smoke signature A practice projectile allows for the release of flame or smoke and bang upon impact to simulate a successful deployment of the tactical cartridge. The practice projectile includes three main components: a center vent tube, a plurality of vent holes, and a plurality ... | 10/18/2005 |
| 6871594 | Reusable paint grenade A reusable paint dispersing grenade of the type employed in paint ball games is constructed in such a manner as to avoid the use of any combustible materials, and also to avoid the requirement for access to a source of compressed air for operation. The paint grenade... | 03/29/2005 |
| 6837713 | Dummy practice grenade The dummy practice grenade of the present invention is particularly useful as a rifle grenade with a rifle having a fixed grenade launching sight such as a Yugoslavian M59/66 SKS Military rifle using 7.62×39 mm grenade launching cartridges, while exhibiting high ac... | 01/04/2005 |
| 6688234 | Symmetrical paint ball land mine A paint ball land mine comprising multiple PVC parts detonates and marks simulated casualties. The mine may be easily field stripped by hand. The mine forcibly detonates in response to physical contact without unbalancing, so that tilting forces that othe... | 02/10/2004 |
| 6640721 | Non-lethal airbag munition A non-lethal airbag munition which can be used alone or in combination with anti-tank landmines to prevent target pedestrians and vehicles from entering a specific area or following a particular route for a period of time is disclosed. The munition can in... | 11/04/2003 |
| 6595139 | Irritating body The invention relates to an irritating body consisting of several compartments (6) which are substantially parallel to the central axis of the container (4) and which receive effect charges (8). All the compartments (6) are closed on the upper part of the... | 07/22/2003 |
