Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 1, 2010
Patent Application Number
11839089
Date Filed
August 15, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention is an apparatus and a method for casting a cementitious or stone pile into the ground. The present invention comprises an exterior driving casing and an interior mandrel acting in cooperation to hold and deliver the pile forming material. A retrievable driving driving shoe is also disclose.
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