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Air-lifted slab structure
   
Document Number
US Patent 5970680
Issued Date
October 26, 1999
Link
Inventors
Powers; James M. (Ormond Beach, FL)
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Abstract
A method and apparatus for raising concrete floor slabs to form a multi-floor structure. Slabs are cast near ground level with apertures cast for well placed columns. The slabs are lifted sequentially, uppermost first, by an air cushion backed up by follower means to hold the slabs safely at any elevation reached. The air cushion is created between the current uppermost slab, the slab below, and the walls of a steel enclosure erected around the stacked slabs and extending upward allowing slabs to travel upward.
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Number of Claims:
5
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Owner
Published
October 26, 1999
Application Number
08/987,623
Filed
December 10, 1997
US Classification
52/745.05   52/125.1 52/126.5 52/745.2 52/749.1
Int'l Classification
E04B   1/35   (20060101)  
Assistant Examiner
USPTO Field of Search
52/745.05   52/745.2   52/749.1   52/126.5   52/125.1  
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