Class 102/276 - Time controlled

Subclass of Class 102 - Ammunition and explosives
Definition: Subject matter which includes a timing or delay causing
No. of patents: 32
Last issue date: 01/26/2010

Number	Title	Issue Date
7650840	Delay units and methods of making the same A delay unit (10) comprises a timing strip (14) and, optionally, a calibration strip (20) deposited on a substrate (12). The timing and calibration strips comprise energetic materials which optionally may comprise particles of nanosize ma...	01/26/2010
7362659	Low current microcontroller circuit A method and system for accurate timing in a low current system useful in fuzing applications generates a first count of oscillations of an oscillator of unknown frequency during a first period of unknown duration. A second count of oscillations of the oscillator is...	04/22/2008
7213518	Modular 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
7146912	Flexible detonator system An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag i...	12/12/2006
7100512	Timed pyric chain apparatus, in particular for the ignition of pyrotechnical fireworks A timed pyric chain apparatus, particularly for the ignition of pyrotechnical fireworks includes a main conduit (2) for a retard fuse (16) the main conduit (2) having lateral branch conduits (5). The apparatus consists of coupled modular ...	09/05/2006
6629499	Temperature activated mechanical timer The present invention comprises a mechanical timer that operates by using the ambient temperature differences during daytime and nighttime periods in order to count desired intervals of days, months, etc. Embodiments of the invention employ the timer to r...	10/07/2003
6629498	Proximity submunition fuze safety logic The Fuze Safety Logic is disclosed that guards against erroneous responses created by accidents or by accidental releases of submunitions of payloads being carried by explosive ordnances. The fuze safety logic provides provisions for conservation of batte...	10/07/2003
6618237	System for the initiation of rounds of individually delayed detonators Disclosed is an electronic detonator delay assembly, having an associated detonator, that can be pre-programmed on site with a time delay and installed in a borehole to carryout a blast operation. The assembly is first coupled to a programming unit to pro...	09/09/2003
6578489	Pyrotechnic initiation delay means A pyrotechnic initiation delay device intended in particular to cooperate with a device for firing a pyrotechnic charge of the fuze type, particularly for a hand grenade, having a delay composition located inside a delay column, the latter having a lower ...	06/17/2003
5714709	Apparatus for detonating a plurality of objects Objects are detonated by placing charges adjacent respective ones of the objects and connecting the charges to a time fuse by means of respective explosive cords for detonating all of the charges simultaneously when the time fuse fires. The time fuse can ...	02/03/1998
5612505	Dual mode warhead A dual mode warhead is provided for use against both soft and hard targets nd capable of sensing which type of target has been struck comprising a casing made of a ductile material containing an explosive charge and a fuze assembly. The ductile warhead cas...	03/18/1997
5415100	Apparatus and method for setting missile fuze delay A digital-to-analog converter provides a dc voltage to a fuze setting circuit which is proportional to the desired delay to be set. A digital controller operates the digital-to-analog converter responsive to the desired firing conditions for the fuze dela...	05/16/1995
5119715	Time delay fuze A time delay fuze is shown to include a fuze base having an outer surface with a circular shape and a center cavity with an inner wall having a plurality of bores disposed through the inner wall to the outer surface. The time delay fuze further includes a...	06/09/1992
5018449	Paint dispersing training grenade A paint dispersing training grenade includes a grenade body having dispersing passages extending between a central bore and an external surface of the grenade body, a plug threadedly received in one end of the bore, a piston resiliently urged by a spring ...	05/28/1991
5009855	Gas generator for inflating a safety bag A gas generator for inflating a safety bag for the protection of persons in a vehicle, is equipped with a combustion chamber that is divided into a smaller section and into a larger section by a sheet metal insert. The sheet metal insert also divides the ...	04/23/1991
4402270	High speed detonating cord with modified velocity of detonation A very-high-detonation-velocity detonating cord of the type having axial hollow space within the core is modified in its velocity of detonation by inserting at selected locations within the hollow core, elongated, flexible blockage elements. By a selectio...	09/06/1983
4341159	Retard sensing double release safe separation munition timer A safing and arming timer being responsive to sequentially sampled deceleration forces to operate in one of a non-retard or retard mode wherein different non-retard and retard safe separation times may be predetermined and sequential outputs are available...	07/27/1982
4332199	Electromagnetic arming rate regulator A device for adjustably changing the arming time of a projectile having an rming mechanism for arming the projectile at a predetermined rate is presented. A pallet made of magnetically susceptable material and supported for repetitive movement is disposed ...	06/01/1982
4306501	Omni-directional impact actuated system An omni-directional impact actuating mechanism for utilization in actuating a system such as a munition device. By utilizing a multi-directional impact sensor the munition device becomes omni-directional in that it can be detonated when receiving an impac...	12/22/1981
4291628	Safety mechanism for fuses A safety mechanism for the trajectory for a projectile fuse. The mechanism uses a symmetrical escapement of the cylindrical dead-beat type which does not comprise an inlet lip. The balance comprises two cheeks located one on each side of the escapement wheel, ...	09/29/1981
4281601	Non-slip turning joint for fuzes Relative rotation of the two rotational members of a fuze during dynamic dition of firing are eliminated by interlocking annular, serrated, axial seating surfaces of the two members. A radially sinusoidal split ring in between radially adjacent annular r...	08/04/1981
4267776	Muzzle velocity compensating apparatus and method for a remote set fuze A desired range is selected prior to firing the projectile carrying the remote set fuze and after firing a Doppler radar provides Doppler pulses proportional to the relative velocity of the projectile. Constant frequency pulses are counted during a predet...	05/19/1981
4233673	Electrically resettable non-volatile memory for a fuse system A non-volatile memory has a plurality of storage bits, each bit comprising an insulated gate field effect transistor having a variable threshold voltage and selectively set to first and second stable threshold voltages in response to the application of po...	11/11/1980
4217826	Time delay firing device A time delay firing device used for initiating explosives or pyrotechnics ter a preset delay. The unique design allows the device to be used directly in combination with explosives or pyrotechnics or with a variety of accessories. It can be used in conjun...	08/19/1980
4142442	Digital fuze The time-to-go of the fuze of an artillery shell is digitally set after the round has been fired but before it leaves the muzzle of the gun. The communications link for setting the fuze includes a transmitting coil mounted on the gun muzzle and a receivin...	03/06/1979
4110812	Non-recurrent pulse generator A load power supply is connected to the load device through a gated switch nd time-delay fuse. The maximum current pulse delivered by the power supply is limited by the "delayed blow" characteristics of the fuse inserted in the circuit. After a selected cu...	08/29/1978
4095529	Setting ring stop A mechanical stop for precluding the rotation of a setting ring beyond predetermined limits of a plurality of turns in the clockwise and counter-clockwise directions. The setting ring is adapted to drive the tape of a tape reader in the range setting mech...	06/20/1978
4085680	Fuze encoder A photo-electric tape reader particularly adapted to ordnance use wherein power is provided by a setback generator, and which reader is free of the malfunctions caused by contact bounce and corroded surfaces of resilient metal contacts. The reader utilize...	04/25/1978
4015531	Electrical fuze with selectable modes of operation A fuze for a round of ammunition is provided wherein the gun voltage used for initiating the primer is also used to contemporaneously charge the power supply capacitor....	04/05/1977
4005631	Device for setting mechanical time fuses A device for setting mechanical time fuse in which the fuse has an element which, when rotated, adjusts the time period of the fuse. The fuse is contained within a housing at the forward end of a projectile and within the housing forwardly of the fuse is ...	02/01/1977
3986457	Electronic time opener and opener setter system An electronic time opener and opener system is utilized for initiating the pening of a plurality of munition cannisters at an accurate settable time after ejection from a high speed aircraft. Analogue circuitry is used in the opener setter to measure the c...	10/19/1976
3964395	Electrical primer for projectiles An electrical primer for a projectile in which the charge on a capacitor is stepwise reduced by periodic timing pulses to a level at which the projectile is armed. Several embodiments of the circuit and of the timing elements are disclosed....	06/22/1976

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Class 102/276 - Time controlled