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
Methods and systems for automatically identifying a logical circuit failure in a data network
Methods for enhancing tantalum filament life in hot wire chemical vapor deposition processes
Thiocyanato or isothiocyanato substituted naphthalene diimide and rylene diimide compounds and their use as n-type semiconductors
Method of improving sensitivity and interference rejection in wireless receivers
Hand sign
Selenium/group 3A ink and methods of making and using same
  Randomly Featured Patents
Broadband repeater with security for ultrawideband technologies
Three axis velocity probe system
Impedance transforming three-port power divider/combiner using lumped elements
Pouring device
Self-storing vehicle step assembly
Method and apparatus for detection and remote notification of vehicle parking space availability data
Waterproof connector and assembling method of waterproof connector
Container primarily in the form of a flask
Lighting device