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
Developing device
Creation and use of test cases for automated testing of media-based applications
Retrievable outgoing audio messaging
Display apparatus having a semi-penetration layer and a sealing unit
Distylium plant named `PIIDIST-I`
TPO compositions, articles, and methods of making the same
Cellulose acylate laminate film, method for producing cellulose acylate laminate film, polarizer and liquid crystal display device
  Randomly Featured Patents
Truck grille guard mounting bracket
Switching array having circuitry to adjust a temporal distribution of a gating signal applied to the array
Protective sunglasses system having removable prescription capable lenses
Roll-to-roll glass material attributes and fingerprint
Compact single-ended fluorescent lamp having a partitioned envelope
Display device with reflective structure for improved light emission
Powder coating of epoxy resin, non-cyclic polyanhydride, and aliphatic non-cyclic anhydride or dibasic acid
System and method for calculating passive host proximity in an L2 link layer
Synthesis of [.sup.13C] and [.sup.2H] substituted methacrylic acid, [.sup.13C] and [.sup.2H] substituted methyl methacrylate and/or related compounds
Bowling ball carrier