Method of forming hollow concrete bodies
First Claim
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1. THE METHOD OF SETTING A HOLLOW CYLINDRICAL METAL TUBE IN CONCRETE WITHIN AN EARTH BOREHOLE OR THE LIKE WHICH CONSISTS IN SUPPLYING CEMENT GROUT AROUND THE EXTERIOR OF THE TUBE AND ROTATING THE TUBE AT A SPEED NOT TO EXCEED ONE REVOLUTION PER MINUTE WHILE THE CEMENT IS BEING INTRODUCED INTO THE BOREHOLE AROUND THE TUBE, BUT IS NOT ROTATED WITH THE TUBE, AND UNTIL THE CEMENT IS COMPLETELY SET.
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1 Claim
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1. THE METHOD OF SETTING A HOLLOW CYLINDRICAL METAL TUBE IN CONCRETE WITHIN AN EARTH BOREHOLE OR THE LIKE WHICH CONSISTS IN SUPPLYING CEMENT GROUT AROUND THE EXTERIOR OF THE TUBE AND ROTATING THE TUBE AT A SPEED NOT TO EXCEED ONE REVOLUTION PER MINUTE WHILE THE CEMENT IS BEING INTRODUCED INTO THE BOREHOLE AROUND THE TUBE, BUT IS NOT ROTATED WITH THE TUBE, AND UNTIL THE CEMENT IS COMPLETELY SET.
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Current AssigneeJoseph E. Banks
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Original AssigneeJoseph E. Banks
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InventorsBanks, Joseph E.
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Application NumberUS04/157,734Time in Patent Office1,300 DaysField of SearchUS Class Current264/32CPC Class CodesB28B 21/22 using rotatable mould or co...E02D 15/04 Placing concrete in mould-p...E02D 5/36 making without use of mould...
