Resources Contact Us Home
Low level blasting composition

Image Number 10 for United States Patent #5071496.

A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an initiator for the detonator. The blasting agent is preferably a semi-fluid explosive material having a predetermined sensitivity. The sensitivity is related to the borehole diameter and the initiating system's strength, wherein the blasting agent upon initiation is transformed into explosive products by means of reaction front which consumes substantially all the blasting agent as the reaction front passes through the blasting agent. The reaction front has an average velocity of propagation of between 200 meters/second and 1,000 meters/second for at least 30% of the total length of blasting agent located in the borehole. Another aspect of the invention is a method of blasting wherein the average velocity of propagation of the explosive front in the blasting agent is in a range of between 200 m/sec and 1,000 m/sec.

  Recently Added Patents
Methods and systems to accomplish variable width data input
Cylindrical LED fixture
Controlling transmission resources in mobile radio systems with dualtransfer mode
Hot-press cushion material and manufacturing method of the same
Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system
Method and apparatus for detection of the remote origin fraction of radon present in a measuring site
Servo write assembly
  Randomly Featured Patents
Vehicle situation alert system with eye gaze controlled alert signal generation
Bone fracture repair apparatus and method
Anchor system
Combination preparations comprising bifeprunox and a dopamine agonist
Semiconductor device and method for manufacturing of the same
System and method for regulating the transmission of media data
Benzimidazole derivatives
Location registration method and paging method in mobile communication system, mobile communication system, base station, communication control method, mobile station, and communication contro
Method of constructing a hard disk drive having uploadable/downloadable firmware
Method and apparatus for removing speculative memory accesses from a memory access queue for issuance to memory or discarding