Building foundation repair pier and permanent support
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United States of America Patent
Stats
-
Aug 10, 2021
Grant Date -
Apr 2, 2020
app pub date -
Sep 30, 2019
filing date -
Oct 2, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods and apparatus are provided for a system for raising and permanently supporting a sunken building foundation footing. The system includes a cylindrical sleeve disposed inside a hole cored through the footing from a top surface of the footing adjacent a stem wall to a bottom surface of the footing, wherein the sleeve has an inner diameter large enough for pier extensions to pass through. A bracket positioned on the top surface of the footing over the sleeve has a center hole with a diameter equal to or greater than the inner diameter of the sleeve. The system may further include a mechanical connection from the bracket to the footing configured to carry a foundation lifting force from a hydraulic ram.
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