Resources Contact Us Home
Method and apparatus for fabricating pipeless explosive and propellant charges

Image Number 2 for United States Patent #4380186.

For the fabrication of pipeless explosive and/or propellant charges there is provided an insulation sleeve, whose radial thermal conductivity or heat transmission, at a random cross-section, essentially corresponds to the quantity of heat which radially flows out at such location and is released as a result of the solidification of the melt. By means of the insulation sleeve there is produced a pipeless casting without any subsequent supply of external or separate energy, e.g. electrical heating and so forth, even if the cast or molded article has very small pour openings. The required thermal conductivity or heat transmission in the insulation sleeve can be adapted to the thermal conditions of the cast article by employing insulating elements or parts and/or hollow spaces or chambers with heat carriers, e.g. melt. Corresponding casting methods are predicated upon a carefully directed preheating and stepwise cooling of the cast article and the insulation sleeve.

  Recently Added Patents
Hepatitis C virus inhibitors
Polymeric compositions and method of making and articles thereof
Isolated monoclonal antibody or fragment thereof binding prostate specific membrane antigen, conjugates and uses thereof
Buffer compositions
Electric vehicle with pitch control device
Semiconductor structure with improved capacitance of bit line
Information processing apparatus, information processing method, and program
  Randomly Featured Patents
Inkjet printer
Fishing reel
Circuit arrangement and method for verifying a switching diversity system
Scene change detector
Liquid crystal display device and backlight module thereof comprising a spacer for supporting the optical film set
Scintillation camera
Selection mechanism for signal combining methods
Reflection type compound prism and optical pickup apparatus employing the same
Pharmaceutical composition
Method of manufacturing a clathrate compound