Static structures (e.g. – buildings) – With piercing or expanding earth anchor – Auger-type penetrator
Patent
1979-11-26
1982-02-23
Faw, Jr., Price C.
Static structures (e.g., buildings)
With piercing or expanding earth anchor
Auger-type penetrator
E02D 580
Patent
active
043163505
ABSTRACT:
A wing screw earth anchor formed by a metal casting adapted to be rotatably embedded in the ground by a powered device generally referred to as a digging machine. The particular design of the earth anchor of this invention has a central body projecting to a point. Opposite the point is a drive nut which receives the shaft of a digging machine for screwably embedding the anchor in the earth. Between the point and the drive nut is a cylindrical anchor cylinder from which projects an anchoring spiral. The spiral projects outward from the point in a 90.degree. arc from zero to four inches, which is the maximum radius of the anchoring spiral. In the subsequent, central segment, which extends from 180.degree., the radius is constant at four inches. The final segment of the anchoring signal is a trailing taper which extends from 120.degree. terminating in a trailing point. A threaded section inside the drive nut receives threadably a one-inch diameter anchor rod to which may be secured a guy wire or rod which is desired to be anchored securely to the ground. The anchoring spiral projects on a plane of approximately 5.degree. upward from the point to the spiral termination at its trailing tip. The diameter of the preferred embodiment was eight inches and the anchoring spiral has a lift of approximately four inches in 360.degree..
REFERENCES:
patent: 3148510 (1964-09-01), Sullivan
patent: 3645055 (1972-02-01), Roza
patent: 3736711 (1973-06-01), Thornbrugh
Faw Jr. Price C.
Friedman Carl D.
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