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US 5,494,378 AGranted
Piling apparatus
OwnerLarry K. Hansoninventor
Life of this patent
Estimating the term…
Abstract
A tubular piling pipe having a plurality of cantilevered perforations formed in the exterior wall of the pipe defined by individual bendable necks and carrying enlarged-in-cross section tabs at their free extremities to provide foundational support. The bendable necks have elastic limits such that an outward force of sufficient magnitude will permanently force the necks and respective tabs radially outward and into the surrounding soil such that the tabs define anchor fingers.
Claims16
An improved piling apparatus comprising:
- an elongated tubular piling constructed with an elongated malleable peripheral holding wall of a predetermined thickness;
- said holding wall being formed with contoured perforations arranged in a selected pattern extending throughout its length to form respective longitudinally projecting anchor fingers normally disposed within the extension of the plane of the body of said wall and configured with respective relatively narrow necks and respective relatively wide friction tabs cantileverly carried from the respective said necks;
- and
- said necks being bendable beyond their respective elastic limits to assume respective set configurations to angle the respective said fingers longitudinally outwardly to be embedded in soil surrounding the said holding length.
1 more element
Improved piling apparatus comprising:
- an elongated support column formed with a plurality of longitudinal outwardly opening nesting channels disposed equidistant thereabout;
- a plurality of elongated tubular pilings constructed with elongated walls defining on the respective one lateral sides with a nesting surface for receipt in a respective one of said channels and on the respective opposite side with respective malleable holding walls;
- said holding walls being formed with contoured perforations arranged in at least one respective vertical column and each configured with respective malleable cantilever necks and extending anchor tabs;
- said necks being bendable to respective angles sufficient to exceed their respective elastic limits to each assume a permanent bend angling the respective anchor tabs longitudinally outwardly;
- and
- tie straps surrounding said pilings and columns to structurally tie said pilings to said column.
3 more elements
A method of stabilizing the support of a structure on underlying soil including the steps of:
- selecting an elongated tubular piling having a longitudinal malleable peripheral holding wall formed with contoured perforations defining anchor fingers with respective narrow necks and respective relatively wide anchor tabs cantileverly carried from the respective said necks;
- driving said piling into said soil to a predetermined depth;
- placing an explosive inside said piling;
- and
- detonating said explosives to bend the respective said anchor fingers at the respective said necks past their elastic limits and to force the respective said anchor tabs radially outwardly into said soil thereby locking said anchor fingers in place.
2 more elements
Dependencies are inferred from the claim text.