Resources Contact Us Home
Delay detonator

Image Number 2 for United States Patent #4817530.

A nonelectric delay detonator has, in a casing, a secondary charge as well as a delay device. The delay detonator is initiated by an ignition transfer hose extending into the casing. A partition is arranged between a hose end and the delay device. Ignition of the delay device is effected by the hose by impact or heat. An auxiliary charge (e.g. a primer cap) is located on the other side of the partition, this auxiliary charge ignites a delay charge of the delay device. In this way, the delay device burns in a closed system from which gas and pressure cannot escape into the hose. Thereby the scattering width of the delay times of the detonator is reduced.

  Recently Added Patents
Thin film transistor and flat panel display device including the same
Image processing apparatus and image processing method
Curable sublimation marking material and sublimation transfer process using same
Wireless device with extendable antenna
Alkaline battery
Architectural panel with Tarwe and grass
Circuit arrangement for a piezo transformer, and method therefor
  Randomly Featured Patents
Passive injection system used to establish a secondary system temperature from a primary system at a different temperature
Soybean cultivar 07194277
Jewelry container
Enhanced serial network topology generation algorithm
Torque limited track pin seal
Silver halide photographic products with semiconductor sensitizers
Reversibly switchable primers
Method and apparatus for sensing microbial growth conditions
Gas-liquid vortex mixer and method
Generation of constrained Voronoi grid in a plane