A concussion device for creating a low level of smoke and a selectively tuned low-toned sound, the device including a structure having a cavity, the cavity having a top opening; a first energetic charge disposed in a bottom portion of the cavity; and a member removably secured to the structure withi
A concussion device for creating a low level of smoke and a selectively tuned low-toned sound, the device including a structure having a cavity, the cavity having a top opening; a first energetic charge disposed in a bottom portion of the cavity; and a member removably secured to the structure within the cavity and partially overlying the first energetic charge.
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1. A concussion device comprising: a structure comprising a cavity, the cavity having a top opening; a first energetic charge disposed in a bottom portion of the cavity; an elongated member having a length, a width, and a thickness, with the length being greater than both the width and the thickness
1. A concussion device comprising: a structure comprising a cavity, the cavity having a top opening; a first energetic charge disposed in a bottom portion of the cavity; an elongated member having a length, a width, and a thickness, with the length being greater than both the width and the thickness of the elongated member, said elongated member removably secured to the structure within the cavity, the length of the elongated member extending across the cavity to partially cover a horizontal cross-sectional area of the cavity defined on a perimeter by walls of the cavity, the horizontal cross-sectional area covering the first energetic charge, said elongated member removably secured to remain substantially in place during detonation of said first energetic charge. 2. The concussion device of claim 1, further comprising a second energetic charge within the cavity overlying the member. 3. The concussion device of claim 2, wherein the first and second energetic charges comprise about 20 to about 100 weight percent nitrocellulose based on a total weight of the energetic charge composition. 4. The concussion device of claim 3, wherein at least one of the first and second energetic charges comprise less than about 20 weight percent colorants and oxidizers based on a total weight of the respective energetic charge composition. 5. The concussion device of claim 2, wherein the cavity comprises a lower portion having a first volume surrounding the first energetic charge and an upper portion comprising a second volume surrounding the second energetic charge wherein the second volume is larger than the first volume. 6. The concussion device of claim 1, wherein the cavity comprises a smaller width at the bottom portion compared to an upper portion of the cavity. 7. The concussion device of claim 1, wherein the cavity comprises a rectangular, conical, or circular shape or combination thereof. 8. The concussion device of claim 1 wherein the member fully extends across the width of the cavity to partially cover the cross-sectional area. 9. The concussion device of claim 1, wherein the member is removably secured by being disposed in at least one of slots and holes disposed in walls comprising the structure. 10. The concussion device of claim 1, further comprising an ignition source proximate the at least one first energetic charge. 11. The concussion device of claim 10, wherein the ignition source comprises an electric match embedded in the ignition source. 12. The concussion device of claim 10, wherein the ignition source comprises a detonating charge. 13. The concussion device of claim 2, wherein the first and second energetic charges comprise one or more of loose powder, fiber, and pressed pellets of material. 14. The concussion device of claim 13 wherein at least one of the first and second energetic charges are at least partially contained within a thin film of material. 15. The concussion device of claim 1 wherein the elongated member comprises at least one of a rod and bar having at least one of a rectangular and circular shape. 16. The concussion device of claim 1, wherein at least one of the first and second energetic charges comprises one or more of transition and rare earth elements, chlorine, Sr(NO3)2, SrCO3, Parlon, Aluminum Perchlorate (AP), ammonium nitrates, metal nitrates, perchlorates, phosphates, carbonates, aminotetrazoles, arsenites, oxalates, oxychlorides, peroxides, oxides, sulphates, fluorides, and metal powders. 17. The concussion device of claim 1, wherein the elongated member is disposed to fully extend across a diameter of the cross-sectional area. 18. The concussion device of claim 1, wherein the elongated member is disposed to extend across a central portion of the cross-sectional area. 19. A concussion device comprising: a structure comprising a cavity, the cavity having a top opening; a first energetic charge disposed in a bottom portion of the cavity; an elongated member having a length, a width, and a thickness, with the length being greater than both the width and the thickness of the elongated member, said elongated member removably secured to the structure within the cavity to extend across the cavity to partially cover a horizontal cross-sectional area of the cavity defined on a perimeter by walls of the cavity, the horizontal cross-sectional area covering said first energetic charge. 20. A concussion device comprising: a structure comprising a cavity, the cavity having a top opening; a first energetic charge disposed in a bottom portion of the cavity; an elongated member having a length, a width, and a thickness, with the length being greater than both the width and the thickness of the elongated member, the elongated member removably secured to the structure within the cavity and partially overlying the first energetic charge; wherein the cavity comprises a lower portion having a first volume surrounding the first energetic charge and an upper portion comprising a second volume surrounding the second energetic charge wherein the second volume is larger than the first volume.
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