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
Visibility radio cap and network
Image processing apparatus and method having defective pixel detection and correction ability
Communication system including relay station and data frame for the communication system
Pyridylphenyl compounds for inflammation and immune-related uses
Optical angular position detection apparatus and method
Inter-carrier communications for multimedia-message delivery
Communication device and method for detecting a radio signal
  Randomly Featured Patents
One piece clear plastic cardholder, cardholder shaped fresnel magnifying lens and method of making the same
Process for producing microcapsule toner
Apparatus for unwinding web roll
Electric motor having brush noise absorption system
Method and system for aggressive cycling of leak detection pump to ascertain vapor leak size
Rotary connector
Methods and composition for secretion of heterologous polypeptides
Oxygen analogs of cephalosporins
Toy chest and wagon
Diversity reception arrangement