Resources Contact Us Home
Wad for cartridges of hunting and shooting arms

Image Number 2 for United States Patent #4574701.

An improved wad and shot cup structure for shotgun shells or so-called shot shell cartridges for hunting and shooting use, including a substantially cylindrical body of plastic material forming a shot cup or bowl (7) containing lead shot (11) and a powder seal cup (17) for confining the firing charge, the shot cup and powder seal cup being connected by a cushioning structure (6). The latter includes disc-shaped elements or so-called tiles (9) of diameter such that, if flattened as caused by the thrust of the firing charge, it is substantially greater than the inner diameter of the gun barrel. The tiles are connected and separated by walls (10) by which the force is ultimately transferred from the powder seal cup to the shot cup, the tiles providing sealing against leakage of explosion gases and contributing to the cushioning effect of the cushioning structure, which constitutes a wad.

  Recently Added Patents
Method, computer program product, and system for non-blocking dynamic update of statically typed class-based object-oriented software
Wireless communication method and apparatus for supporting reconfiguration of radio link control parameters
Optical fiber instrument system for detecting and decoupling twist effects
Display screen or portion thereof with icon
Apparatus and method for fast tag hit
Non-sterile fermentation of bioethanol
Motion estimation using camera tracking movements
  Randomly Featured Patents
Pedestrian safety headlamp assembly
Transducer mounting block
Sandwich wrap
One-piece roof vent device and methods of constructing and utilizing same
Plastic bearing for stabilizers in motor vehicles
Receiver and receiving method
Method of fabricating SOI wafer with SiGe as an etchback film in a BESOI process
Methods and apparatus for assembling rotatable machines
Method of predicting crystal quality of semiconductor single crystal and apparatus thereof
Cabinet hinge