Shot charge and wad structure for a combat shotgun
US4815388A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1988 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Feb 24, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B7/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shot charge and wad structure includes a thick-walled plastic shot wad cup having integrally connected base and continuous sidewall portions which together define a shot pocket with an open end for receiving and supporting a charge of shot. The structure also includes a shot pellet charge in the shot pocket composed of tungsten and having a hardness generally at least equal to that of the gun barrel in which a shotshell containing the pellets is to be fired. An insert disk is disposed in the pocket below and in supporting relation to the charge of shot pellets in the pocket. The disk is composed of a material, such as aluminum, having a hardness sufficient to prevent any of the pellets in the charge thereof from embedding therein or in the base portion. Instead, the charge cleanly separates from the pocket of the cup upon firing of a shotshell containing the charge. The shot pocket can be either generally square or circular in cross-section. The insert disk has a square or circular configuration adapting it to fit into corresponding square or circular pocket of the shot wad and rest on an interior surface of the base portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.