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
Unified feedback frame for supporting a plurality of feedback modes and a multiple-input multiple-output (MIMO) communication system using the unified feedback frame
Printing device, printing system, program, and printing method for printing based on print data from a user authorized to issue a print instruction for the print data
Universal tablet and smartphone holder
Embedded bonding pad for image sensors
Battery cell separator
Device for transmitting data between a serial data bus and working modules such as actuator modules and/or I/O modules
Programming of DIMM termination resistance values
  Randomly Featured Patents
Trench transistor
Self-aligned contacts with gate overlapped lightly doped drain (goldd) structure
Apparatus for wrapping articles, especially cigarette groups
Connector node for durable stent
Method and apparatus for generating high intensity radiation
Method for recording potential capacity of a formed foil in a continuous foil forming process
Loudspeaker protection circuit
Dentist's tooth separator
Methods of monitoring genomic integrity and detecting genomic destabilization of plant cells in tissue culture
Connection-oriented congestion controller for common channel signaling network