Method for storage tank demolition
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United States of America Patent
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Sep 15, 2009
Grant Date -
Mar 13, 2008
app pub date -
Sep 8, 2006
filing date -
Sep 8, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A hydraulically-operated ripper tool is mounted as an attachment on a hydraulic arm of a carrier or excavator and used in a method for demolition of large metal walled structures such as storage tanks in a very short time. The ripper tool has a concave, sharp inner edge and is operated by the hydraulic aim in reciprocation so as to provide a shearing force to cut quickly through metal walls in “can-opener” fashion. The ripper tool is employed for making long vertical cuts into the tank wall from top to bottom, so that a series of vertical cuts can be made to weaken a side of the tank and allow the top of the tank structure to be brought down.
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