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US 4,695,203 AGranted
Method and apparatus for shoring and supporting a building foundation
AssigneeGregory Enterprises, Inc.
InventorSteven D. Gregory
Life of this patent
Estimating the term…
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AssigneeGregory Enterprises, Inc.
InventorSteven D. Gregory
Estimating the term…
An improved method and apparatus for supporting and shoring building foundations and walls in which one or more pilings are disposed at a point outside the perimeter of a structure. The pilings are driven into the supporting strata to a point determined by said strata's resistance to a predetermined amount of driving force. The pilings thus disposed provide a foundation for the subsequent attachment and securing of the apparatus of the present invention which functions to raise and support the foundation or wall to a predetermined level. The apparatus of the present invention includes a lifting arm for engaging the foundation, a sleeve portion for guiding the pilings, a removably secured lifting saddle, and a hydraulically operated jack for applying a force between the saddle and the pilings to raise the foundation a predetermined distance.
An apparatus for raising and supporting the foundation or slab of a building, said apparatus comprising means for engaging the lower surface of said foundation or slab, said engaging means including a tubular guide means;
A method for raising and supporting the foundation or slab of a building, said method comprising the steps of driving a pipe assembly into the ground until a predetermined resistance is encountered, engaging the lower surface of said foundation or slab with a lifting arm apparatus, guiding said pipe assembly through said lifting arm apparatus, connecting a lifting saddle to said lifting arm apparatus, applying a hydraulic force between said lifting saddle and said pipe assembly to raise said foundation or slab a predetermined distance, and then welding said pipe assembly to said lifting arm apparatus to secure said foundation or slab in said raised position.
Dependencies are inferred from the claim text.