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
Systems and methods for building axes, co-axes and paleo-geographic coordinates related to a stratified geological volume
Systems and methods for arranging and labeling cardiac episodes
Method of fabricating semiconductor light emitting device
System, method and computer program product for monitoring and controlling network connections from a supervisory operating system
Containers having radio frequency identification tags and method of applying radio frequency identification tags to containers
Carbonyl-ene functionalized polyolefins
Display screen or portion thereof with graphical user interface
  Randomly Featured Patents
Data processing apparatus
Position determination
Secure device
Friction clutch for a vehicle
Valve for a gas vessel
Offset track
Water filter urm
Process of preparing ferrite powders
Thrust bearing device and motor
Two piece door unit for a vehicle