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
Remote controller
Silicon-on-insulator (SOI) structure configured for reduced harmonics and method of forming the structure
Food safety printer
Recovery of a hot-pluggable serial communication link
Server system and method for discovering digital assets in enterprise information systems
Load control device
System for the secure management of digitally controlled locks, operating by means of crypto acoustic credentials
  Randomly Featured Patents
Production of phosphorus compounds
Systems and methods for viewing medical 3D imaging volumes
Multiple channel optic
Two-motion switch for cordless lawnmower
TPO nanocomposites and methods of use
Piperazine derivatives, uses thereof and pharmaceutical compositions containing them
Apparatus for charging and emptying a receptacle, especially a milling machine operating discontinuously with discrete milling bodies
Salts and polymorphs of a VEGF-R inhibitor
Thin film magnetic head, head gimbal assembly, and hard disk drive
Cavity filter, an isolation device, and a node in a mobile communications network