Non-toxic high density shot for shotshells

Details Non-toxic high density shot for shotshells Non-toxic high density shot for shotshells

1998-03-24

2001-04-03

Tudor, Harold J. (Department: 3641)

Metal working

Bias cutting of tubular stock

C102S459000, C102S514000, C102S516000

Reexamination Certificate

active

06209180

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a non-toxic high density shot for shotshells and to the method for making it.
2. Description of the Previously Published Art
It is desirable to manufacture non-toxic shot for shotshells that have a density at least as great as lead, as a replacement for lead in shotgun shells.
Currently, steel shot having a significantly lower density than lead is employed with less than satisfactory performance.
OBJECTS OF THE INVENTION
It is an object of this invention to provide a high density composite non-toxic shot for shotshells which has the same density as traditional Pb shotgun media.
It is further object of this invention to provide a process for making a high density composite non-toxic shot for shotshells which has the same or greater density as traditional Pb—Sn shotgun media.
It is a further object of this invention to provide a process for making non-toxic shot by coating a steel core particle with a higher density coating material so that the resultant composite product has about the same density as traditional Pb shotgun media.
These and further objects of the i invention will become apparent as the description of the invention proceeds.
SUMMARY OF THE INVENTION
The foregoing and further objects and advantages are obtained by coating a ferrous metal spherical core with a non-toxic coating material having a higher density than the density of the core material.


REFERENCES:
patent: 270101 (1883-01-01), Nordenfelt
patent: 1246204 (1917-11-01), Wilson
patent: 3363561 (1968-01-01), Irons
patent: 3881418 (1975-05-01), Sato et al.
patent: 5012743 (1991-05-01), Denis et al.
patent: 5189252 (1993-02-01), Huffman
patent: 5399187 (1995-03-01), Mravic
patent: 5747724 (1998-05-01), Lindgren et al.
patent: 5760331 (1998-06-01), Lowden et al.
patent: 68800 (1977-06-01), None

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