Checkerboard shear volume reduction system
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United States of America Patent
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Feb 25, 2003
Grant Date -
Feb 6, 2003
app pub date -
Jun 20, 2001
filing date -
Jun 20, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for reducing the volume of a cylindrical tube for disposal by crushing flat and then shearing into small coupons. Shearing is accomplished by opposed dies having a checkerboard grid of cutting edges. The resulting coupons are preferably substantially square in shape. The invention is particularly useful for reducing the storage volume of irradiated radioactive pressure tubes from a nuclear reactor.
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