US 6,739,265 B1 · Explosive device with assembled segments and related methods

An explosive device of the type capable of producing exterior thereto a shock wave front sufficiently powerful to produce useful work suitable to the customary needs of at least one of mining, construction, and seismic activities, said explosive device being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device from the output end of a transmission line coupled between the control device and said explosive device, said explosive device comprising:

(a) an explosive first charge segment comprised of an explosive material, said first charge segment being of a size sufficient to contribute when detonated to producing exterior thereto a shock wave front suitable to the customary needs of at least one of mining, construction, and seismic activities, said first charge segment comprising:
(i) a first abutment surface formed on a portion of the exterior of said first charge segment;
(ii) a first external surface formed on the remainder of the exterior of said first charge segment;
and
(iii) a transmission line receiving cavity recessed in said first abutment surface, said transmission line receiving cavity being configured to receive the output end of a transmission line;
(b) an explosive second charge segment comprised of said explosive material, said second charge segment being of a size sufficient to contribute when detonated to producing exterior thereto a shock wave front suitable to the customary needs of at least one of mining, construction, and seismic activities, said second charge segment comprising:
(i) a second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being disposed against said first abutment surface in an assembled relationship of said first and second charge segments;
and
(ii) a second external surface formed on the remainder of the exterior of said second charge segment;
(c) assembly means for securing said first charge segment and said second charge segment in said assembled relationship thereof, in said assembled relationship and with the output end of the transmission line disposed in said receiving cavity, said first charge segment and said second charge segment being detonated together by a detonation impulse communicated to the output end of the transition line, thereby to function as a single explosive device and produce a shock wave front capable of effecting useful work suitable to the needs of at least one of mining, construction, and seismic activities;
and
(d) detonation advancement means located between said first and second charge segments in said assembled relationship thereof, said detonation advancement means functioning:
(i) for permitting a plasma zone to propagate internal of said explosive device ahead of a detonation wave front traveling through said explosive material of said charge segments to explode said explosive device;
and
(ii) for initiating a secondary detonation wave front at a location in said explosive material of said charge segments ahead of said detonation wave front traveling through said explosive material.

12 more elements

An explosive device of the type capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device from the output end of a transmission line coupled between the control device and said explosive device, said explosive device comprising:

(a) an elongated explosive first charge segment comprised of an explosive material and having a transverse cross section with an unchanging configuration along the length of said first charge segment, said first charge segment comprising:
(i) a planar first abutment surface formed on a portion of the exterior of said first charge segment;
and
(ii) an elongated first detonation enhancement cavity recessed in said first abutment surface, the transverse cross section of said first detonation enhancement cavity having an unchanging configuration along the length thereof and a closed end located interior of the periphery of said first abutment surface;
and
(b) an elongated explosive second charge segment comprised of said explosive material and having a transverse cross section with an unchanging configuration along the length of said second charge segment, said second charge segment comprising:
(i) a planar second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being congruent to said first abutment surface, said second abutment surface being disposed against said first abutment surface in an assembled relationship of said first and second charge segments;
and
(ii) an elongated second detonation enhancement cavity recessed in said second abutment surface and, the transverse cross sections of said second detonation enhancement cavity having an unchanging configuration along the length thereof and a closed end located interior of said second abutment surface, said second detonation enhancement cavity being so located in said second abutment surface that in said assembled relationship of said first and second charge segments said first detonation enhancement cavity and said second detonation enhancement cavity are disposed in mirroring opposition, communicating therebetween over the full extent thereof to form a corresponding void with a closed end in said explosive device, whereby when said explosive device is exploded by receiving through the output end of the transmission line a detonation impulse from the control device, a plasma zone propagating in said void ahead of the detonation wavefront traveling through said explosive material of said charge segments initiates a secondary detonation wavefront at a surface of said void at a location in said explosive material ahead of said detonation wavefront traveling therethrough.

6 more elements

An explosive device of the type capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device by the output end of a transmission line coupled between the control device and said explosive device, said explosive device comprising:

(a) an explosive semicylindrical first charge segment comprised of an explosive material, said first charge segment comprising:
(i) an abutment surface formed on the diameter of the exterior of said first charge segment;
(ii) an external surface formed on the circumference of the exterior of said first charge segment;
(iii) a semicylindrical elongated first cavity recessed in said abutment surface traversing the length of said abutment surface, the diameter of said first cavity being located in the plane of said abutment surface;
and
(iv) a semicylindrical elongated second cavity recessed in said abutment surface, the diameter of said second cavity being located in the plane of said abutment surface;
(b) an explosive semicylindrical second charge segment comprised of said explosive material, said second charge segment comprising:
(i) an abutment surface formed on the diameter of the exterior of said second charge segment, said abutment surface of said second charge segment being disposed against said abutment surface of said first charge segment in an assembled relationship of said first and second charge segments;
(ii) an external surface formed on the circumference of the exterior of said second charge segment;
(iii) a semicylindrical elongated first cavity recessed in said abutment surface traversing the length of said abutment surface, the diameter of said first cavity being located in the plane of said abutment surface, in said assembled relationship of said first and second charge segments said first cavity of said first charge segment and said first cavity of said second charge segment being disposed in mirroring opposition, communicating therebetween over the full extent thereof to form a cylindrical first passageway in said explosive device so configured as to be capable of receiving the output end of the transmission line coupled to the control device and thereover a detonation impulse from the control device for exploding said explosive device;
and
(iv) a semicylindrical elongated second cavity recessed in said abutment surface, the diameter of said second cavity being located in the plane of said abutment surface, in said assembled relationship of said first and second charge segments said second cavity of said first charge segment and said second cavity of said second charge segment being disposed in mirroring opposition, communicating therebetween over the full extent thereof to form a cylindrical second passageway in said explosive device;
and
(c) detonation advancement means located between said first and second charge segments in said assembled relationship thereof, said detonation advancement means functioning:
(i) for permitting a plasma zone to propagate internal of said explosive device ahead of a detonation wave front traveling through said explosive material of said charge segments to explode said explosive device;
and
(ii) for initiating a secondary detonation wave front at a location in said explosive material of said charge segments ahead of said detonation wave front traveling through said explosive material.

14 more elements

An explosive device of the type capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device by the output end of a transmission line coupled between the control device and said explosive device, said explosive device comprising:

(a) identically configured explosive first and second charge segments disposed in an assembled relationship, each of said charge segments comprised of an explosive material, each of the charge segments comprising:
(i) an abutment surface formed on a portion of the exterior of the explosive charge segment, in said assembled relationship said abutment surface of each of said explosive charge segments being disposed against each other;
(ii) a semicylindrical elongated first cavity recessed in said abutment surface traversing said abutment surface, the diameter of said first cavity being located in the plane of said abutment surface, in said assembled relationship said first cavity of each of said explosive charge segments being disposed in mirroring opposition, communicating therebetween over the full extent thereof to form an enclosed cylindrical first passageway in said explosive device so configured as to be capable of receiving a length of the transmission line coupled to the control device;
and
(iii) a semicylindrical elongated second cavity recessed in said abutment surface traversing said abutment surface parallel to said first cavity, the diameter of said second cavity being located in the plane of said abutment surface, in said assembled relationship said second cavity of each of said charge segments being disposed in mirroring opposition, communicating therebetween over the full extent thereof to form an enclosed cylindrical second passageway in said explosive device so configured as to be capable of receiving the output end of the transmission line coupled to the control device and thereover a detonation impulse from the control device for exploding said explosive device;
and
(b) detonation advancement means located between said first and second charge segments in said assembled relationship thereof, said detonation advancement means functioning:
(i) for permitting a plasma zone to propagate internal of said explosive device ahead of a detonation wave front traveling through said explosive material of said charge segments to explode said explosive device;
and
(ii) for initiating a secondary detonation wave front at a location in said explosive material of said charge segments ahead of said detonation wave front traveling through said explosive material.

7 more elements

An explosive device comprising:

(a) an explosive first charge segment comprised on an explosive material, said first charge segment comprising:
(i) a first abutment surface formed on a portion of the exterior of said first charge segment;
and
(ii) a first cavity recessed in said first abutment surface;
and
(b) an explosive second charge segment comprised of said explosive material, said second charge segment comprising:
(i) a second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being disposed against said first abutment surface in an assembled relationship of said first and second charge segments;
and
(ii) a second cavity recessed in said second abutment surface in said assembled relationship, said second cavity being positioned in a non-mirroring relationship in said second abutment surface relative to said first cavity in said first abutment surface;
and
(c) detonation advancement means located between said first and second charge segments in said assembled relationship thereof, said detonation advancement means functioning:
(i) for permitting a plasma zone to propagate internal of said explosive device ahead of a detonation wave front traveling through said explosive material of said charge segments to explode said explosive device;
and
(ii) for initiating a secondary detonation wave front at a location in said explosive material of said charge segments ahead of said detonation wave front traveling through said explosive material.

11 more elements

An explosive device of the type capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device from the output end of a transmission line coupled between the control device and said explosive device, said explosive device comprising:

(a) an explosive first charge segment comprised of an explosive material, said first charge segment comprising:
(i) a first abutment surface formed on a portion of the exterior of said first charge segment;
(ii) a first external surface formed on the remainder of the exterior of said first charge segment;
and
(iii) a transmission line receiving cavity recessed in said first abutment surface, said transmission line receiving cavity being configured to receive the output end of the transmission line;
(b) an explosive second charge segment comprised of said explosive material, said second charge segment comprising:
(i) a second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being disposed against said first abutment surface in an assembled relationship of said first and second charge segments;
and
(ii) a second external surface formed on the remainder of the exterior of said second charge segment;
(c) assembly means for securing said first charge segment and said second charge segment in said assembled relationship thereof;
and
(d) detonation advancement means located between said first and second charge segments in said assembled relationship thereof, said detonation advancement means functioning:
(i) for permitting a plasma zone to propagate internal of said explosive device ahead of a detonation wave front traveling through said explosive material of said explosive device to explode said explosive device;
and
(ii) for initiating a secondary detonation wave front at a location in said explosive material of said explosive device ahead of said detonation wave front traveling through said explosive material.

12 more elements

An explosive device of the type capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device from the output end of a transmission line coupled between the control device and said explosive device, said explosive device comprising:

(a) an explosive first charge segment comprised of an explosive material, said first charge segment comprising a first abutment surface formed on a portion of the exterior of said first charge segment;
(b) an explosive second charge segment comprised of said explosive material, said second charge segment comprising:
(i) a second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being disposed against said first abutment surface in an assembled relationship of said first and second charge segments;
and
(ii) texture on said second abutment surface, said texture comprising:
(A) a plurality of raised areas;
and
(B) a plurality of recessed areas interposed between adjacent of said raised areas, said recessed areas resulting in voids within said explosive device when said first charge segment and said second charge segment are in said assembled relationship thereof, whereby when said explosive device is exploded a plasma zone propagated in said recessed areas of said texture ahead of the detonation wavefront passing through said explosive material of said charge segments initiates a secondary detonation wavefront at a surface of said texture at a location in said explosive material ahead of said detonation wavefront traveling therethrough;
and
(c) assembly means for securing said first charge segment and said second charge segment in said assembled relationship thereof.

7 more elements

An explosive device of the type capable of producing a shock wave front upon being exploded by a detonation impulse generated by a selectively operable control device and communicated to said explosive device, said explosive device comprising:

(a) an explosive first charge segment comprised of an explosive material, said first charge segment comprising:
(i) a first abutment surface formed on a portion of the exterior of said first charge segment;
and
(ii) a cavity recessed in said first abutment surface and opening on the periphery thereof, said cavity comprising:
(A) a receptacle recessed in said first abutment surface and configured to receive a detonator activatable by a detonation impulse from the control device;
and
(B) a channel recessed in said first abutment surface communicating between said receptacle and said periphery of said first abutment surface, said channel being configured to receive the output end of a transmission line for a detonation impulse from the control device;
(b) an explosive second charge segment comprised of said explosive material, said second charge segment comprising a second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being disposed against the first abutment surface in an assembled relationship of said first and second charge segments;
and
(c) detonation advancement means located between said first and second charge segments in said assembled relationship thereof, said detonation advancement means functioning:
(i) for permitting a plasma zone to propagate internal of said explosive device ahead of a detonation wave front traveling through said explosive material of said charge segments to explode said explosive device;
and
(ii) for initiating a secondary detonation wave front at a location in said explosive material of said charge segments ahead of said detonation wave front traveling through said explosive material.

10 more elements

An explosive device comprising:

(a) an explosive first charge segment comprised of an explosive material, said first explosive charge segment comprising a first abutment surface formed on a portion of the exterior of said first charge segment;
and
(b) an explosive second charge segment comprised of said explosive material, said second charge segment comprising:
(i) a second abutment surface formed on a portion of the exterior of said second charge segment, said second abutment surface being disposed against said first abutment surface in an assembled relationship of said first and second charge segments;
and
(ii) a cavity recessed in said second abutment surface interior said periphery thereof, whereby when said explosive device is exploded a plasma zone propagated in said cavity ahead of the detonation wavefront traveling through said explosive material of said charge segments initiates a secondary detonation wavefront at a surface of said cavity at a location in said explosive material ahead of said detonation wavefront traveling therethrough.

3 more elements

Explosive device with assembled segments and related methods

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Explosive device with assembled segments and related methods

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Abstract

Claims114