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US 5,535,495 AGranted
Die cast bullet manufacturing process
OwnerDonald A. Gutowskiinventor
Life of this patent
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Abstract
The invention provides a zinc alloy die cast bullet (100) and a method for manufacturing the same for use primarily in indoor shooting ranges. The use of a zinc die cast alloy eliminates toxic lead vapors and dust which result from the use of lead in bullets. The bullet (100) is made by heating a zinc metal alloy to a molten state (30), injecting the molten alloy into a preformed cavity within a mold under a pressure (20, 60), and sizing the cast bullet at a temperature greater than 70.degree. F. (30, 70).
Claims33
A method of manufacturing a cast bullet comprising the steps of:
- injecting a molten casting metal alloy into a preformed cavity in a mold under a pressure greater than atmospheric pressure to form the cast bullet;
- and,
- sizing the cast bullet at a temperature greater than 70.degree. F.
A method of manufacturing a cast bullet comprising the steps of:
- providing a casting zinc metal alloy;
- heating the zinc alloy to a molten state;
- injecting the molten zinc alloy into a preformed cavity in a mold under a pressure greater than atmospheric pressure to form the cast bullet;
- sizing the cast bullet at a temperature greater than 70.degree. F.
1 more element
Dependencies are inferred from the claim text.