Hand-held firing device

A firing device, comprising:

• a first hollow cylinder having an inner surface and an outer surface, the first hollow cylinder comprising a first end and a second end, the first end including threads disposed on the inner surface, and the second end configured to couple with a non-electric detonator;
• a threaded cap corresponding to the first hollow cylinder, the threaded cap substantially cylindrical with threads disposed on the outer surface, the threads releasably engaged to the threads disposed on the inner surface of the first end of the first hollow cylinder;
• a first spring disposed in the first hollow cylinder;
• a first firing pin disposed in the first hollow cylinder, wherein the spring is positioned between the first end of the first hollow cylinder and the first firing pin;
• a lever structure having a first and second lever structure portion, said first lever structure portion is formed with a first elongated aperture, said second lever structure is formed with a section extending substantially perpendicular to a longitudinal axis of the first hollow cylinder, and coupled to the firing pin disposed in the first hollow cylinder through an elongated opening in the first hollow cylinder, the lever structure positioned outside of the first hollow cylinder and configured to move longitudinally in response to movement of the first firing pin;
• a first fastener adapted to couple said first lever structure portion to said first firing pin through said first elongated aperture and said first opening;
• a first bushing disposed around said first fastener and between the lever structure and the first hollow cylinder, wherein the first bushing is interposed within the opening of the first hollow cylinder and said first elongated aperture;
• a trigger assembly comprising a trigger attachment point in communication with the first hollow cylinder, a trigger in communication with the trigger attachment point and in releasable communication with the lever structure, and a trigger safety, the trigger safety configured to selectively prevent the trigger from releasing the lever structure when said first firing pin is positioned to compress said first spring;
• wherein said first bushing further comprises a radial flange located between a first end and a second end of said first bushing such that frictional contact is eliminated between said first hollow cylinder and a side of said first portion of the lever structure, said second end of said first bushing is positioned in contact with a mating surface of said first firing pin.

A method of manufacturing a firing device, comprising the steps of:

• providing a first and second hollow cylinder, each said hollow cylinders is further formed with an elongated opening through a side wall of each of said hollow cylinders;
• providing a first and second firing pin and respectively disposing said pins in said first and second hollow cylinders;
• providing and adjusting a first and second stop lock respectively for said first and second hollow cylinders to define a set point for said first and second firing pins supported for sliding movement within the hollow cylinders;
• providing a first and second bushing structure each having a radial flange located between a first and second end of said bushing structure, each said bushing structure adapted to have a passage running through the bushing structure;
• providing a lever structure external to the cylinders and supported for movement with the firing pin, said lever structure further having a first and second portion, said second portion is formed with a first and second elongated aperture, said lever structure is coupled to the firing pins via at least one fastener which couples said lever structure to said firing pins, wherein said first and second bushing structures are respectively disposed around said first and second fasteners, each said radial flange positions said lever structure so that it has a clearance fit with said hollow cylinders, said fastener and bushing structure passes through said first elongated opening, said second elongated opening, said first elongated aperture and said second elongated aperture;
• and
• providing a trigger to releasably secure the lever structure in a firing position.

A firing device comprising:

• a first and second housing having a longitudinal passage within each of said housings and further formed with an elongated housing aperture through opposing side walls of each of said housings running laterally in relation to said longitudinal passage;
• a first and second firing pin body;
• a lever section, wherein said lever section has a first and second portion, said second portion having a first and second side that opposes each other where said second side faces away from said first portion, said second portion is formed with a planar area having first and second elongated apertures;
• a first bushing body and a second bushing body;
• a first and second fastener structure adapted to respectively couple said first and second firing pin body, wherein said first and second bushing body is formed to fit respectively around said first and second fastener and further having a shoulder adapted to support said lever section and ensure a clearance between a lower side of said lever section and an upper section of said housing;
• at least one driving mechanism section adapted to apply a mechanical force to said first and second firing pin bodies;
• a trigger mechanism adapted to releasably retain said lever section and firing pin bodies in a first firing position where said firing pin bodies are in a ready to fire position in relation to said driving mechanism section by releasably engaging with a section of said lever section;
• a first safety interlock structure adapted to prevent said trigger mechanism from releasing said lever section in a first position and further is adapted to permit said trigger mechanism to move and release said lever section when rotated into a second position;
• and
• a removable second safety interlock structure adapted to be removeably inserted into side wall apertures formed into said housings and thereby preventing said firing pin bodies from fully traversing said longitudinal passage when inserted.