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US 5,511,449 AGranted
Materials and methods for producing shot of various sizes and compositions
OwnerJeffrey J. Feigenbauminventor
Life of this patent
Estimating the term…
Abstract
Provided are apparatus and method for the manufacture of metallic shot for use in shotguns. The apparatus and method fractionate molten shot material within a reservoir system. Subsequent descent of the molten shot material is controlled through a temperature-regulated environment producing shot of superior sphericity and uniformity.
Claims19
An apparatus for the manufacture of shot comprising:
- a binary reservoir system capable of altering a flow of molten shot material comprising a primary reservoir with a single exit orifice and a secondary reservoir located below said primary reservoir, said secondary reservoir having a plurality of exit orifices, each of said exit orifices of said secondary reservoir having a diameter less than that of said single exit orifice in said primary reservoir;
- a tube wrapped with resistance wire located below and adjacent said binary reservoir system, said tube having a plurality of orifices suitable for shot expulsion at an end of said tube distal from said reservoir system, each of said orifices being covered on its exterior by a rubber lid;
- one or more helical tracks disposed in said tube;
- and
- means for capturing shot expelled from said apparatus on a continuous basis.
2 more elements
An apparatus for the manufacture of shot comprising:
- a reservoir system for altering a flow of molten metal into droplets comprising at least two reservoirs, each reservoir having at least one exit orifice;
- a tube disposed below and adjacent said reservoir system, said tube containing heat exchange fluid and one or more helical tracks, wherein said droplets are formed before entering said heat exchange fluid;
- and
- heating means associated with said tube for imparting a temperature gradient to said heat exchange fluid.
1 more element
A method for the manufacture of shot comprising the steps of:
- melting shot material;
- producing droplets by flowing molten shot material through a reservoir system comprising a primary reservoir with a single exit orifice and a secondary reservoir located below said primary reservoir, said secondary reservoir having a plurality of exit orifices, each of said exit orifices of said secondary reservoir having a diameter less than that of said single exit orifice in said primary reservoir;
- providing a heat exchange fluid contained in a tube located below and adjacent said reservoir system;
- imparting a thermal gradient to said heat exchange fluid;
- providing at least one helical track disposed in said tube;
- guiding said droplets through said heat exchange fluid by supporting said droplets on said at least one helical track disposed in said tube;
- and
- collecting shot formed thereby.
5 more elements
Dependencies are inferred from the claim text.