LONG CARTRIDGE CASE
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Feb 20, 2020
app pub date -
Oct 23, 2019
filing date -
Oct 23, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A method and tooling for forming a cartridge case blank comprising backward extruding a tube from a length of wire stock in multiple backward extrusion steps with progressive tooling to obtain an intermediate blank that can be finish drawn without a preceding annealing step and which if otherwise not subjected to multiple backward extrusion steps, would require annealing prior to finish drawing to avoid tearing.
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