Class 102/202.13 - Having a powder train time delay

Subclass of Class 102 - Ammunition and explosives
Definition: Subject matter which additionally includes in a common unit
No. of patents: 40
Last issue date: 03/13/2007

Number	Title	Issue Date
7188566	Non-electric detonator A detonator (10) has a constant-diameter shell (12) which has a significantly higher shell length-to-diameter (outside diameter) ratio than prior art detonators. The shell (12) is configured to hold an explosive output charge (18) which i...	03/13/2007
6964287	Non-toxic and non-corrosive ignition mixture A non-toxic and non-corrosive ignition mixture is created by combining the energy system and the pyrotechnic system. The energy system comprises a high explosive from the groups of nitroesters and nitramines and a senzibiliser of the type of tetrazene or derivatives...	11/15/2005
6925938	Electro-explosive device with laminate bridge A semiconductor bridge (SCB) device. In one embodiment, the SCB device includes a laminate layer on top of an insulating material, wherein the laminate layer comprises a series of layers of at least two reactive materials, and wherein the laminate layer comprises tw...	08/09/2005
6923122	Energetic material initiation device utilizing exploding foil initiated ignition system with secondary explosive material A device and method that employs a detonation event as an energy source for producing a pyrotechnic output. The device includes an initiation charge that is selectively detonated by an exploding foil initiator. Byproducts from the detonation event are attenuated by ...	08/02/2005
6578486	Igniter The firing apparatus for a gas generator of a restraint device in a vehicle has a firing chamber filled with a pyrotechnic material. A semiconductor chip, in which in addition to a firing resistor at least one circuit activating the latter is integrated, ...	06/17/2003
6561101	Explosive delay assembly An explosive delay assembly including a housing, the housing includes a continuous elongated sidewall surrounding a region bounded at one end by a top surface, the top surface including an aperture configured for accepting an end booster where the end boo...	05/13/2003
6499405	Connection and delay pyrotechnic device A pyrotechnic device of connection and delay between detonating cords and/or between an igniter and detonating cords, including a cavity divided up in two parts, the internal walls of which are coated with a very flammable material; a means for blocking o...	12/31/2002
5602360	Electronic delay igniter and electric detonator An electronic delay igniter including a firing capacitor (102) for storing energy required for firing by applying a voltage from an external power supply, an electronic timer unit (206) provided with a solid state oscillator driven by the energy stored in...	02/11/1997
5503078	Shock resistant detonator and method for making the same The present invention is directed to an article of manufacture which provides a disc which both cleans primary charge contaminants on detonator cylinder walls, and shapes the preloaded primary charge in the containment chamber of the detonator....	04/02/1996
5182417	Precision delay detonator A delay detonator for detonating an explosive charge includes a tubular member having a closed end and an open end, a primary base charge disposed in the closed end of the tubular member and capable of detonating the explosive charge when ignited, a delay...	01/26/1993
5175390	Delay detonator A detonator comprising a generally tubular housing and including therewithin a plurality of detonation material stages, each formed with a recess for receiving a succeeding stage....	12/29/1992
5125335	Fuse element, preferably with long delay period and method for producing the same In fuse elements of layered structure with long delay times, misfires, occur, above all, if aggravating secondary conditions prevail (such as, for example, high projectile rotation and/or temperature stresses and shock stresses). The safe progression of t...	06/30/1992
5088412	Electrically-initiated time-delay gas generator cartridge for missiles A time delay gas generator for military missiles, characterized by very long shelf life and accurately-determined time delay. Time delay powder is layered at high pressure, and causes heating of a metal disc at the end of a time delay interval that is acc...	02/18/1992
5054396	Fuse element, preferably with long delay period and method for producing the same In fuse elements of layered structure with long delay times, misfires, occur, above all, if aggravating secondary conditions prevail (such as, for example, high projectile rotation and/or temperature stresses and shock stresses). The safe progression of t...	10/08/1991
5048420	Low energy fuse In the field of blasting, an improvement in means for transmitting an initiating signal (non-electrically) to an explosive device to remotely detonate same in accordance with a predetermined delay period of the type which comprises tubing in which there i...	09/17/1991
5003879	Delay detonator A delay detonator for causing actual detonation of a device a predetermined period of time following ignition as required by a wide variety of military and civilian operations. The detonator comprises a conventional primer, an expansion chamber separated ...	04/02/1991
4926752	Safety fuze for a hand grenade A safety fuze for a hand grenade comprises a fuze body, a delay case assembly, a detonator assembly, an initiator lever assembly, a cover assembly, and a pull ring assembly. The fuze body has a head, a stem, and a central portion, and a bore extending lon...	05/22/1990
4841856	Pyrotechnical delay elements for delayed-action fuse and uses thereof A miniaturized delay element was developed for use in medium-and large caliber weapon systems and is realized in a metallic cartridge made of a copper-free light metal. By including a metallic combustible, an oxidant consisting of a halogen-containing hig...	06/27/1989
4821646	Delay initiator for blasting A novel initiator (blasting cap) for explosives is provided. The initiator, which may be electric or non-electric, comprises a tubular metal shell having within a base charge, a delay train, a priming charge and an ignition means. Interposed between the d...	04/18/1989
4770097	Mining method with no delay between shot initiator and firing A method for the electrical sequential initiation of explosions in which a series of detonators (D1-D11) is located in association with a series of explosive charges spaced from one another and in which a shot initiator 12 is used sequentially to initiate...	09/13/1988
4760792	Pyrotechnic delay for high g's application An acceleration resistant pyrotechnic delay unit delays the ignition of a warhead subjected to high acceleration on launch and high deceleration on impact. The delay unit includes a delay cup housing a pyrotechnic train. The delay cup has a primer cavity ...	08/02/1988
4742773	Blasting signal transmission tube delay unit A transmission tube signal delay assembly comprising a delay element containing a shaped delay composition having a preselected combustion time from a first side of the delay element to a second side of the delay element; a first transition element adjace...	05/10/1988
4727808	Non-primary explosive detonator The present invention relates to a non-primary explosive detonator comprising a hollow tube (1) with a closed end having a chamber containing a secondary explosive base charge (8), an opposite open end provided with or for the insertion of an igniting mea...	03/01/1988
4499828	Barrier breaching device A barrier breaching device that is designed primarily for opening holes in interior walls of buildings uses detonating fuse for explosive force. The fuse acts as the ribs or spokes of an umbrella-like device that may be opened up to form a cone. The cone ...	02/19/1985
4463679	High power pyrotechnic flare The present invention relates to pyrotechnic flares. A hollow support structure (1) receives a first pyrotechnic composition (2) with a delay action internally and axially, whereas it receives a second pyrotechnic composition (4) which is slower than the ...	08/07/1984
4436034	Smoke grenade with successive slow and fast burning charges A smoke shell for providing successive ignition of slow burning and fast burning smoke emitting charges. A steel shell containing a slow burning charge is ejected in a delayed time period after an inner casing with its upper fast burning charge has been e...	03/13/1984
4429632	Delay detonator Improved uniformity of timing, and particularly reduced sensitivity of timing to minor variations in delay charge size, are achieved in delay detonators by placing a loose load of a flame-sensitive ignition composition between a pressed delay charge and a...	02/07/1984
4402269	Electric delay detonator A delay detonator made from an inner and outer casing combination which rces the number of individual components. The detonator uses reduced volume with increased pressure to permit control of the pyrotechnic delay mix. The amount of free space to start ...	09/06/1983
4369708	Delay blasting cap A delay blasting cap having improved uniformity and predictability of delay time, and less susceptible to timing change as a result of a change in the medium or temperature surrounding the cap, has a polyolefin or polyfluorocarbon carrier capsule or tube ...	01/25/1983
4363272	Device for an electric igniter An electric ignition device having a pyrotechnical delay portion and a pyrotechnical ignition portion enclosed in a container. A first conducting ignition element is supported adjacent the delay portion and a second conducting ignition element is supporte...	12/14/1982
4358998	Igniter for a pyrotechnic gas bag inflator For an inflator for pyrotechnically inflating protective gas bags for vehicles, an igniter is provided which causes the propellant in the inflator to ignite in a progressive manner so as to inflate the bag slowly at the onset but more rapidly later as inf...	11/16/1982
4356768	Delay fuse with a slow rate of combustion and a small diameter The invention relates to a delay fuse having a rate of combustion which is less than or equal to 4 mm/second, characterized in that it has a diameter which is less than or equal to 3 mm and in that it contains a pyrotechnic composition consisting of 25 to...	11/02/1982
4312271	Delay detonator device A reliable delay detonator device is disclosed which is thermally and chemically stable and which is also insensitive to mechanical shock and electrostatic charge. The device can be made with differing time delays and can be interconnected with other deto...	01/26/1982
4311096	Electronic blasting cap An electronic blasting cap (10) includes a housing (12) which is closed at one end and has adjacent thereto it a base charge (14), a primer charge (16) and an ignition charge (18). The charges (14, 16, 18) are positioned within housing (12) by a metal cap...	01/19/1982
4304184	Selectively actuable electrical circuit A control circuit for firing an electrically actuable igniter in response to a firing signal having predetermined characteristics. For protection from inadvertent or accidental actuation, the control circuit includes at least one inductor in series with t...	12/08/1981
4239005	Device for an electric igniter An electric ignition device having a pyrotechnical delay portion and a pyrotechnical ignition portion enclosed in a container. A first conducting ignition element is supported adjacent the delay portion and a second conducting ignition element is supporte...	12/16/1980
4239004	Delay detonator device A reliable delay detonator device is disclosed which is thermally and chemically stable and which is also insensitive to mechanical shock and electrostatic charge. The device can be made with differing time delays and can be interconnected with other deto...	12/16/1980
4144814	Delay detonator device A reliable delay detonator device is disclosed which is thermally and chemically stable and which is also insensitive to mechanical shock and electrostatic charge. The device can be made with differing time delays and can be interconnected with other deto...	03/20/1979
4036139	Electrically initiated fuse ignitor A fuse or the like, for the ignition of a detonator, partially cut at an angle to its longitudinal axis to expose the ignition train, having an electrically actuated ignition device mounted in the cut in contact with the ignition train....	07/19/1977
3999484	Delay device having dimpled transfer disc Explosively activated delay device having a squib, a delay charge spaced therefrom, an output explosive charge, and thin metallic transfer disc between the delay charge and the output charge. The improvement in this invention is the provision of a dimpled...	12/28/1976

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Class 102/202.13 - Having a powder train time delay