Universal means of initiation and device based on same

Abstract

A non-electric device of initiation is proposed, converting initial mechanical pulses into firing force or stimulating an explosive transformation, usable for initiating explosive devices or any means involving sanctioned detonation or combustion. The proposed device includes an element provided with an axial through-channel in the form of an insert or being integral with a housing of an igniter, munition, or pyrotechnic device. An igniting composition may be positioned in the channel. The proposed device can be triggered by any mechanical impulse, such as a shock impulse, a percussive impulse, or a grating impulse. The proposed device is standardized so as to work with various explosive devices, pyrotechnic devices and igniting compositions, provides for high operational reliability, a high level of safety, a long useful life of the initiator, simple and safe production, and an optional capability to avoid the use of metal components and phosphorus compositions.

1 . Initiation device, characterized in that it is an element with an end-to-end axial channel and it is used as an insert or as a single unit with the case of an igniter, a shell or a pyrotechnical device. 
     
     
         2 . Initiation device according to  claim 1 , characterized in that the channel is straight (cylindrical) or cone-shaped in the axial section, round or rectangular in the cross-section, or the channel walls are curved inwards and the inner channel walls are smooth, rough or corrugated. 
     
     
         3 . Initiation device according to  claim 1 , characterized in that the ignition compound (IC) is located in the channel. 
     
     
         4 . Initiation device according to  claim 3 , characterized in that an impact-based initiating compound, pyrotechnical ignition compound, friction compound or their combination is used as ignition compound. 
     
     
         5 . Initiation device according to  claim 3 , characterized in that IC is coated onto end-to-end channel walls, pressed in the channel, placed at the channel entrance as a initiating compound drop, or placed in the channel by using a combination of these methods. 
     
     
         6 . Initiation device according to  claim 1 , characterized in that a collar is made around the channel entrance. 
     
     
         7 . Initiation device according to  claim 6 , characterized in that a primer is installed above the channel, e.g., supported by the collar. 
     
     
         8 . Initiation device according to  claim 1 , characterized in that the element has at least one end-to-end slit aperture and/or at least one through hole, or the channel walls are perforated. 
     
     
         9 . Initiation device according to  claim 1 , characterized in that at the impulse receiving side the element part is sealed with a film, membrane, foil or lacquer over the compound. 
     
     
         10 . Initiation device according to  claim 1 , characterized in that the element is made of polymer, metal or composite material like fiberglass, or combustible material. 
     
     
         11 . Igniter, characterized in that it contains an initiation device according to any of the  claims 1 - 10 . 
     
     
         12 . Igniter according to  claim 11 , characterized in that it contains an impact-based mechanism consisting of a hammer with a firing pin, which can be separate elements or combined into one, and, optionally, it contains a retainer, lock pin, ring and safety bracket. 
     
     
         13 . Igniter according to  claim 12 , characterized in that the firing pin is made wedge-shaped with a sharp or blunt end or T-shaped in longitudinal section. 
     
     
         14 . Igniter according to  claim 12 , characterized in that the firing pin is installed in the axial channel of the initiation device. 
     
     
         15 . Igniter according to  claim 12 , characterized in that the impact-based mechanism allows for axial or radial movement within the casing. 
     
     
         16 . Igniter according to  claim 12 , characterized in that the IC is placed onto the firing pin surface. 
     
     
         17 . Igniter according to  claim 12 , characterized in that the firing pin contains a cavity connecting to the outer surface with a pyrotechnical, explosive or flammable compound. 
     
     
         18 . Igniter according to  claim 12 , characterized in that the initiation device, hammer and firing pin are made of combustible material. 
     
     
         19 . Igniter according to  claim 11 , characterized in that it contains an elongate flexible of rigid friction element, e.g., cord, stripe, wire or bar partially located in the axial channel. 
     
     
         20 . Igniter according to  claim 19 , characterized in that IC is placed onto the surface of the elongate flexible of rigid friction element. 
     
     
         21 . Igniter according to  claim 19 , characterized in that the bar contains a cavity connecting it to the outer surface with a pyrotechnical, explosive or flammable compound. 
     
     
         22 . Igniter according to  claim 19  or  21 , characterized in that the bar outer surface is engraved with longitudinal grooves or cavities with a pyrotechnical or explosive compound. 
     
     
         23 . Igniter according to  claim 19 , characterized in that the initiation device and the elongate flexible or rigid friction element are made of combustible materials. 
     
     
         24 . Igniter according to  claim 11 , characterized in that the initiation device is sealed from the side of the exit hole with the sealing membrane and/or by coupling the igniter with the initiation change container. 
     
     
         25 . Igniter according to  claim 24 , characterized in that the igniter casing allows for screwing on or in the casing of an explosive or pyrotechnical device, or is installed by using glue. 
     
     
         26 . A munition, characterized in that it contains an initiation device according to any of the  claims 1 - 10 . 
     
     
         27 . A pyrotechnical device, characterized in that it contains an initiation device according to any of the  claims 1 - 10 .