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Class 102/223 - Fluid pressure operated


Subclass of Class 102 - Ammunition and explosives
Definition: Subject matter in which the blocking or interrupting means
No. of patents: 44
Last issue date: 02/17/2009


1    
NumberTitleIssue Date
7490551Projectile fuze
Fuze including safety element (30) includes an acceleration detector (31) that acts on a timer (32) coacting with a primer housing rotor (14). Rotation of the rotor can be halted by a second safety device (35) responsive to the dyn...
02/17/2009
7258068Safety and arming apparatus and method for a munition
A safety and arming mechanism for a munition having a housing with a first detonator and an explosive mounted within the housing and in alignment with one another. A shaft is mounted within the housing. A first component is rotatingly fixed to the shaft and is movea...
08/21/2007
7213518Modular electronic fuze
A modular fuze assembly is provided for use in multiple types of military ordnance. The fuze comprises a base unit having an initiator for arming the fuze; a timer assembly that includes a programmable clock package; a trigger assembly comprising a line monitoring c...
05/08/2007
7150228Gas pressure switch
A gas pressure switch is provided for an ignition and safety system for ammunition. The switch includes a housing; a piston actuator within the housing, the piston actuator being displaceable from an idle position to a contacting position by propellant gases of the ...
12/19/2006
6978717Infrared camera deployed by grenade launcher
A projectile in a cartridge designed to be launched from a grenade launcher. The projectile is adapted to be secured to the housing of the cartridge. The projectile includes a camera contained in the projectile body and connected thereto by a cord, and a transmitter...
12/27/2005
6968785Locking and stabilizing device for grenades
The locking and stabilizing device for grenades utilizes a solid nylon ring and multiple nylon ribbons that are attached to the ring at regular intervals around its circumference. During storage, the ring surrounds and locks the slider of the grenade in its storage ...
11/29/2005
6802260Safety and arming device using cellulose-based sensor/actuator
A safety and arming device has first and second portions of an explosive train fixably supported in a housing. A third portion of the explosive train is fixable in a first position such that the first and second portions remain operably separated from one another, a...
10/12/2004
6779457Percussion fuse (ignition device)
A method and apparatus for protecting and arming fuses in a projectile to satisfy safety requirements and to initiate ignition with only minimal delay. In accordance with the method, after launch of a projectile, behind a cap having a central inlet opening a safety ...
08/24/2004
6564716Fuzes having centrifugal arming lock for a munition
A fuze for a munition adapted to prevent unintended arming thereof. The fuze incorporates an arming screw having a keyed portion and a centrifugal locking mechanism for preventing rotation of the arming screw unless the fuze mechanism is in a rapidly spin...
05/20/2003
6463855Fuse device for a mortar shell
A fuse device for a mortar shell includes an impact weight carrying a detonation charge and arranged to impact against a firing pin when the mortar shell strikes a target. A safety arm locks the impact weight against movement toward the firing pin in a sa...
10/15/2002
6415717Line charge assembly and system for use in shallow-water clearing operations
A line charge assembly and system are provided for use in a shallow-water obstruction clearing operation. Each assembly has a propulsion unit capable of flight through the air, a line charge array, an air-safed water-armed fuze, a first interrupter dispos...
07/09/2002
6318269Air current operated projectile fuze
A projectile includes a fuze assembly which has a firing pin carrier supported for motion parallel to a longitudinal axis of the projectile; a firing pin secured to the firing pin carrier; a slide supported for motion transversely to the projectile longit...
11/20/2001
5821447Safety and arming device
A safety and arming device interconnecting a bomb with a target detector ures safe mine laying deployment thereof through a detonation explosive train that is armed in delayed response to payout of a lanyard under enablement control exercised by a hydrod...
10/13/1998
5753849Gas-operated timing demolition delay
Time delay apparatus for providing a firing action at the end of a predetermined time-delay period. It is used with a source of fluid under pressure, and defines a fluid-receiving chamber for accumulating the fluid when released from the source. A flow co...
05/19/1998
5524543Safety priming system for an explosive charge
A priming system includes a block made of pyrotechnically inert material having on one of its surfaces a cavity placed facing an explosive charge. Structure for allowing percussion of the block is mounted at a receiving surface substantially parallel to a...
06/11/1996
5402728Low shock separation bolt
This invention relates to a relesable attaching apparatus for attaching a portion of a first object to a portion of a second object. The attaching apparatus has an attaching member with walls defining a cavity therein. A rapidly expanding material is plac...
04/04/1995
5212340Safe and arm device using liquid explosive
A safe and arm device, which has an explosive train interrupted by a void establish a safe condition, has the void filled with a liquid explosive to establish an armed condition. The void may be in a manometer-like device in which the liquid explosive is...
05/18/1993
5153369Safe and arm device with expansible element in liquid explosive
A safe and arm device, which has an explosive train interrupted by a void establish a safe condition, has the void filled with a liquid explosive to establish an armed condition. The void may be in a device in which the liquid explosive is motivated by f...
10/06/1992
5005482Combined mine safety deployment and activation system
A naval mine combined fail-safe deployment and activation system which, ar the mine has been dropped from an aircraft, deploys a parachute to slow its descent and thereafter arms a target detection device when the mine has settled into the water to a pre...
04/09/1991
4978089Pyrotechnic system for providing an emergency exit in an aircraft
A system for providing an emergency exit in a wall of an aircraft includes a pyrotechnic device disposed against the wall, and capable of cutting a desired opening in the wall, an igniter for the pyrotechnic device, a controller for the igniter, and a man...
12/18/1990
4932325Safety device for an aerodynamic body fuse
A safety device for use in low-speed aerodynamic bodies. The pressure conditions at the outer contour of the flying equipment are used for obtaining an arming criterion of a fuse. A slide is movable from a safe to an armed position. In the safe position, ...
06/12/1990
4744301Safer and simpler cluster bomb
The design of low cost, safe to use cluster bombs is a prime military objective of aircraft weaponization. Present barriers to cost and safety result from the needed complex dispersion system of the submunition cargo. Spin-up, propulsion of the submunitio...
05/17/1988
4662278Fuse assembly
A fuse assembly embodying a detonator movable by centrifugal force into alignment with a firing pin held retracted by a drogue and drag line and movable forwardly into engagement with the detonator by impact, the fuse assembly being attached to a grenade ...
05/05/1987
4660473Compressed gas-actuated mechanical power element
Two cylinder chambers are provided in a housing, each of these chambers containing a piston. Pins project, as piston rods, from the pistons in differing directions. A duct is located in a zone between the pistons. This duct is in communication with a comp...
04/28/1987
4658725Fuse for a small bomb
A fuse or triggering device for a small bomb arranged in an artillery grenade, which includes a percussion fuse constituted of a striker and a detonator. The above-mentioned artillery grenade contains a plurality of small bombs arranged behind each other,...
04/21/1987
4658726Fuze for setting off jacketed explosive charges
A fuze for setting off jacketed explosive charges, particularly underwater charges, comprises a breaking wall aimed at the explosive charge, and an initiating charge aimed at the breaking wall. Between the initiating charge and the breaking wall, an inter...
04/21/1987
4632035Arming method and devices for firing a submarine weapon
The present invention relates to arming methods and devices for firing a submarine weapon. A device according to the present invention comprises a piston connected by a strip to a bistable arming organ. The piston shifts inside a cylindrical body between ...
12/30/1986
4542694Out-of-line underwater safing and arming device and method therefor
An out-of-line water safing and arming device includes an out-of-line barrier assembly with an internal bore. When submerged, the bore fills with water which is entrapped by a hydrostatically-driven piston assembly to cause the barrier assembly to move to...
09/24/1985
4526104Safety-arming device
A safe-arm device for use in a fuel-air explosive munition carried by an craft. The device has a housing having an environmental seal which is separated from the housing upon munition release to form a seal opening, a pressure probe for obtaining static ...
07/02/1985
4487126Safety fuse with automatic underwater self-disarming
A pressure-actuated fuse has a housing formed with an inner chamber and with a passage having an outer end opening to the exterior and an inner end opening into the chamber. A plug in the passage has a porosity sufficient to allow slow liquid flow through...
12/11/1984
4458597Cartridge with firing actuation of the payload
A cartridge with firing actuation of the payload comprises a case solid with a case bottom which houses a threaded member constituting an ejection nozzle, and in front of the latter a missile provided with a delay ignition chain interrupted at the level o...
07/10/1984
4454816Cartridge having a pyrotechnical actuation of a payload with a safety device
This invention relates to the safety of ammunitions. The projectile of a cartridge has a base which houses a safety stop consisting of a transversely slidable valve. A device ensures that the valve cannot be released until the projectile has been subjected to ...
06/19/1984
4395951Water-armed/air-safed release apparatus
An improved release apparatus, including an actuator device, a release dee and a firing device, releases the firing device in a water environment and not in an air environment when the actuator device is remotely actuated. When in a water environment, a ...
08/02/1983
4389940Antipersonnel mine
An antipersonnel mine is shown, a plurality of such mines being adapted to be loaded into a round of ammunition for dispersal and subsequent detonation at random instants. The timing for detonation of each mine is determined by the discharge of a capacito...
06/28/1983
4359942Switch actuator
An improved switch actuator, for safe and arm applications requiring utmost ependability in order to preclude a premature or false arming sequence, utilizes a plurality of simultaneous input signals from independently coded pneumatic, optical and electrica...
11/23/1982
4311097Dual underwater safety fuse
A fuse apparatus for a depth charge or the like has a primary fuse that operates at a relatively shallow depth to position a detonator in line with a firing pin, and a secondary fuse that operates to release the firing pin to explose the detonator. A safe...
01/19/1982
4300451Method and apparatus for measuring pneumatic differential drag forces
A differential drag apparatus is disclosed for detecting air pressure forces on a drag-sensing body. The body is movable in response to a predetermined magnitude of air pressure force. A pressure regulator responds to the movement of the body by releasing...
11/17/1981
4285277Low profile grenade fuze
The present invention relates to a generally spherical hand grenade, wher the fuze projects a lesser distance from the grenade body than prior art fuzes, this lower profile providing better aerodynamic and handling characteristics. The novel fuze include...
08/25/1981
4216723Bomblet fuze
A miniature fuze for use with a bomblet munition having an arming and firing mechanism located adjacent one another within the fuze housing. The arming mechanism has no stored energy therein and relies upon a plurality of distinct operations to take place...
08/12/1980
4188886Pressure probe for safety-arming device
An air pressure sensing probe for providing static-dynamic differential air ressure to operate a guided missile warhead safety-arming device is disclosed. The probe assembly is hermetically sealed to keep the device free of dirt and moisture during storage...
02/19/1980
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