Resources Contact Us Home
Universal shot wad

Image Number 6 for United States Patent #5970878.

The combination of a shot sleeve and a shot cup base form a universal shot wad that precisely fixes an adjustable volume for the shot column of a wide range of shot shell loads. The shot sleeve is a generally tubular member with an open end and a closed end. The inside of the shot sleeve is substantially smooth adjacent to both the open end and the closed end and has a plurality of substantially parallel, inwardly projecting, first ribs circumscribing the inside between the smooth portions.The shot cup base is a second tubular member and also has an open end and a closed end. A plurality of substantially parallel, outwardly protruding, second ribs circumscribe an outside of the shot cup base. The volume of a shot receiving portion is controlled by inserting the shot cup base a desired distance into the shot sleeve such that the two sets of ribs interengage. Apertures formed through the shot cup base cause the sidewall portions of the shot cup base to segment and open outward on expulsion from the muzzle of a shotgun increasing aerodynamic resistance. The increased aerodynamic resistance causes the shot cup base to separate from the shot string minimizing interference of the shot flight pattern by the shot cup base.

  Recently Added Patents
Incrementally increasing deployment of gateways
Managing delivery of application server content
Coordinate measuring device and method for measuring with a coordinate measuring device
Assigning runtime artifacts to software components
Qualification screening system and screening method thereof, qualification screening device and device under qualification screening
Systems and methods for sensing external magnetic fields in implantable medical devices
System and method for interactive image-based modeling of curved surfaces using single-view and multi-view feature curves
  Randomly Featured Patents
Size-indicating cable tie
Direct positive silver halide emulsion and color diffusion transfer light-sensitive material therewith
Livewell tank
Display device
Rate responsive cardiac pacemaker
Extendable tool
Lottery selector board
Nucleic acid molecules from plants encoding enzymes which participate in starch synthesis
Signal generator circuit having multiple output frequencies
Seesaw sliding composite motion switch