Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate
2009-04-24
2010-12-28
Lagman, Frederick L (Department: 3672)
Hydraulic and earth engineering
Foundation
Columnar structure
C405S230000
Reexamination Certificate
active
07857549
ABSTRACT:
An underpinning pile assembly for supporting a structure upon the earth has at least one steel pipe, at least one concrete pile segment positioned above the steel pipe, and a transition member interposed between the steel pipe and the concrete pile such that the load of the concrete pile is supported by the steel pipe. The steel pipe includes a plurality of steel pipe segments extending in end-to-end relationship in generally vertical alignment. A key member is received in slots formed in the respective ends of the first and second segments. The plurality of concrete pile segments includes a strand affixed in holes formed through the plurality of concrete pile segments.
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Cable Lock, Inc.
Egbert Law Offices PLLC
Lagman Frederick L
LandOfFree
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