Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate
2008-04-01
2008-04-01
Lagman, Frederick L. (Department: 3672)
Hydraulic and earth engineering
Foundation
Columnar structure
C405S216000, C405S251000
Reexamination Certificate
active
07351013
ABSTRACT:
A pile jacking sleeve includes a structural sleeve having a bottom section, an intermediate section and a top section. A stationary plate partitions the bottom section from the top section. A floating plate separates the intermediate section from the top section. A hinged door at the top section allows lateral entry of a piling into the top section when the door is open. An aperture allows insertion and removal of at least one jack into the intermediate section. Actuation of the jack urges the floating plate away from the stationary plate, controllably imparting a load to installed piling. A plurality of bolt holes are also provided in the sleeve to secure piling thereto. The sleeve may be jacketed for additional protection. A plurality of grout windows are also provided in the sleeve to enable filling the structure with a solidifying filler.
REFERENCES:
patent: 1073614 (1913-09-01), McDearmid
patent: 2222481 (1940-11-01), Ferguson et al.
patent: 3201834 (1965-08-01), Baittinger
patent: 4537534 (1985-08-01), Marsh, Jr.
patent: 5813800 (1998-09-01), Doleshal
patent: 6551030 (2003-04-01), Curry
Lagman Frederick L.
Mark Young, P.A.
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