Method and apparatus for raising and supporting a foundation
OwnerHoward E. Clarkinventor
Life of this patent
Estimating the term…
Abstract
A method and apparatus for raising and supporting a foundation where a hole is excavated beneath the foundation, one or more pipes are driven into the earth at diverging angles to form a piling, and a jack is placed in the hole above the piling and beneath the foundation. A self-hardening fluid is forced into the jack to raise the foundation. A jack is created from a pair of hollow cylinders, each having a single closed end, and slidably engaged open end to open end for vertical movement when a self-hardening fluid is forced through an opening formed in one of the cylinders. The jack may be formed of an opened-top cylinder having a concrete piston formed inside that is raised by pumping grout through an opening in the cylinder and into a void under the piston.
Claims12
A method of raising and supporting a settled foundation, comprising the steps of:
- (a) excavating a hole beneath a portion of the foundation;
- (b) driving one or more pipes into the earth at the bottom of the hole to solid ground to form a piling;
- (c) placing a jack in the hole above the piling and forming a pool of selfhardening liquid in the hole and floating the jack in the pool into alignment with the foundation and allowing the liquid to harden;
- and
- (d) operating the jack by foring a self-hardening fluid into the jack to raise the foundation.
A method of raising and supporting a settled foundation comprising the steps of:
- (a) excavating a hole beneath a portion of the foundation to be raised;
- (b) driving at least two pipes into the earth at the bottom of the hole at diverging angles to solid ground to form a piling beneath the foundation;
- (c) placing a jack having a chamber on said piling and forming a pool of selfhardening liquid in the hole to float the jack into contact with said foundation and allowing the liquid to harden;
- (d) operating said jack by pumping concrete into said chamber under pressure to raise said foundation;
- and
- (e) allowing said concrete to cure before relieving said pressure thereon such that the cured concrete in said jack supports said raised foundation.
Dependencies are inferred from the claim text.