A shock-tube firing device has an enclosure and at least two primer-ignition devices translatably carried within the enclosure. A threaded bore for each primer-ignition device is adjacent a forward end of the associated primer-ignition device and configured to receive a threaded shock-tube adapter.
A shock-tube firing device has an enclosure and at least two primer-ignition devices translatably carried within the enclosure. A threaded bore for each primer-ignition device is adjacent a forward end of the associated primer-ignition device and configured to receive a threaded shock-tube adapter. A trigger assembly is carried by the enclosure and comprises an actuation portion and a carrier portion, the actuation portion causing rearward motion of the carrier portion. A biasing element for each primer-ignition device causes forward motion of the associated primer-ignition device. A sear for each primer-ignition device causes compression of the associated biasing element during movement of the actuation portion, thereby compressing the biasing elements for causing forward motion of the primer-ignition devices.
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1. A shock-tube firing device, comprising: an enclosure;at least two primer-ignition devices translatably carried within the enclosure and biased toward a neutral position;a threaded bore for each primer-ignition device, each bore being adjacent a forward end of an associated primer-ignition device
1. A shock-tube firing device, comprising: an enclosure;at least two primer-ignition devices translatably carried within the enclosure and biased toward a neutral position;a threaded bore for each primer-ignition device, each bore being adjacent a forward end of an associated primer-ignition device and configured to receive a threaded shock-tube adapter;a trigger assembly carried by the enclosure, the trigger assembly being biased toward a neutral position and comprising an actuation portion and a carrier portion, the actuation portion being configured to cause rearward motion of the carrier portion when the actuation portion is moved from the neutral position;a biasing element for each primer-ignition device, each biasing element configured to cause forward motion of the associated primer-ignition device; anda sear for each primer-ignition device, each sear being carried by the carrier portion and configured to cause compression of an associated biasing element;wherein movement of the actuation portion causes rearward motion of the carrier portion and the sears, thereby compressing the biasing elements for causing forward motion of the primer-ignition devices. 2. The firing device of claim 1, wherein the actuation portion is a translatable trigger, a rotary trigger, or a pivoting trigger. 3. The firing device of claim 2, wherein the trigger is located between the primer-ignition devices. 4. The firing device of claim 2, wherein substantially all of the trigger is located between outer surfaces of the enclosure. 5. The firing device of claim 2, further comprising: an aperture in the enclosure for accessing the trigger. 6. The firing device of claim 2, further comprising: an aperture in the enclosure for accessing the trigger, wherein the trigger may be operated from opposite sides of the enclosure. 7. The firing device of claim 1, wherein each primer-ignition device is a spring-biased striker. 8. The firing device of claim 1, wherein each primer ignition device is a firing pin propelled by a spring-biased hammer. 9. A shock-tube firing device, comprising: an enclosure;at least two strikers translatably carried within the enclosure;a threaded bore for each primer-ignition device, each bore being adjacent a forward end of an associated primer-ignition device and configured to receive a threaded shock-tube adapter;a trigger assembly carried by the enclosure, the trigger assembly being biased toward a neutral position and comprising an actuation portion and a carrier portion, the actuation portion being configured to cause rearward motion of the carrier portion when the actuation portion is moved from the neutral position;a spring for each striker, each spring configured to bias an associated striker in a forward direction;a sear for releasably engaging each striker, each sear being carried by the carrier portion and configured to cause rearward motion of the associated striker during rearward motion of the carrier portion;wherein movement of the actuation portion causes rearward motion of the carrier portion and the sears, thereby compressing the springs and then releasing the strikers to allow forward motion of the strikers. 10. The firing device of claim 9, wherein the actuation portion is a translatable trigger, a rotary trigger, or a pivoting trigger. 11. The firing device of claim 10, wherein the trigger is located between the strikers. 12. The firing device of claim 10, wherein substantially all of the trigger is located between outer surfaces of the enclosure. 13. The firing device of claim 10, further comprising: an aperture in the enclosure for accessing the trigger. 14. The firing device of claim 10, further comprising: an aperture in the enclosure for accessing the trigger, wherein the trigger may be operated from opposite sides of the enclosure. 15. A shock-tube firing device, comprising: an enclosure;at least two firing pins translatably carried within the enclosure;a trigger assembly carried by the enclosure, the trigger assembly being biased toward a neutral position and comprising an actuation portion and a carrier portion, the actuation portion being configured to cause rearward motion of the carrier portion when the actuation portion is moved from the neutral position;a hammer for each firing pin, each hammer being biased in a forward direction and configured to strike an associated firing pin for causing forward motion of the firing pin;a sear for releasably engaging each hammer, each sear being carried by the carrier portion and configured to cause rearward motion of an associated hammer during rearward motion of the carrier portion;wherein movement of the actuation portion causes rearward motion of the carrier portion and the sears, thereby moving the hammers rearward and then releasing the hammers to cause forward motion of the firing pins. 16. The firing device of claim 15, wherein the actuation portion is a translatable trigger, a rotary trigger, or a pivoting trigger. 17. The firing device of claim 16, wherein the trigger is located between the firing pins. 18. The firing device of claim 16, wherein substantially all of the trigger is located between outer surfaces of the enclosure. 19. The firing device of claim 16, further comprising: an aperture in the enclosure for accessing the trigger. 20. The firing device of claim 16, further comprising: an aperture in the enclosure for accessing the trigger, wherein the trigger may be operated from opposite sides of the enclosure.
Snyder Richard N. (8 Kristen Rd. Garrisonville VA 22463) Rainwater Percy R. (10031 Old Colchester Rd. Lorton VA 22079), Electric/non-electric initiation system.
Peebles Richard J. (Winsted CT) Michna Richard J. (Winsted CT) Monat David E. (Torrington CT) Bartholomew Stephen W. (Granby CT) Adams Craig F. (Granby CT), Initiator for a transmission tube.
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