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Earth-anchor

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Earth anchor

Details

Inventors: Watson, Gary Q.;
Assignee: Morrow Manufacturing Co., Inc. (Odessa, TX)
Primary Examiner: Ridgill, Jr.; James L.
Assistant Examiner:
Attorney, Agent or Firm: Zobal; Arthur F.

An elongated rod has a reaction member attached to a lower end with flukes adapted to be expanded outward against the reaction member. A lower tubular member is connected to the reaction member and surrounds the lower end of the rod. An upper end member is connected around the upper end of the rod and supports a connecting member. A plastic sleeve is located around the rod and is connected to the upper end member and to the lower tubular member forming a sealed chamber between the rod and the inside wall of the plastic sleeve. Two inlets extend through the upper end member to the chamber for injecting a liquid and a gas under pressure for providing protection for the rod. An enlarged bushing plate is coupled to the upper end member and to the rod by way of the plastic sleeve at a lower position for transferring a portion of the load applied to the connecting means to the wall of the hole.

DETAILED DESCRIPTION It is an object of the present invention to provide a new and useful anchor to be located in a hole formed in the earth for anchoring large loads above the earth's surface.
It is another object of the present invention to provide an earth anchor comprising an elongated rod means with movable flukes at one end for securing said rod means in a hole with said rod means being enclosed by a sleeve means forming a normally sealed chamber around said rod means for holding a protective fluid such as a gas under pressure over a liquid.
The anchor comprises an elongated rod means having a first end and a spaced second end with said first end being adapted to be located at the lower end of a hole formed in the earth.
Connecting means is coupled to said second end of said rod means and is adapted to be located above the earth when the anchor is secured in place.
End means is coupled to said first end of said rod means and extends transversely outward therefrom.
Sleeve means is located around said rod means and extends from said end means to said second end of said rod means forming a normally sealed chamber around said rod means.
A normally closed inlet is formed through said sleeve means near said second end of said rod means through which a fluid may be injected into said chamber.
Support means is provided having a plurality of flukes pivotally coupled thereto.
Said support means is adapted to be located around said sleeve means near said first end of said rod means and moved toward said first end of said rod means near said end means such that said flukes will engage said end means and be pivoted outward into the earth surrounding the hole as said support means is moved further toward said first end of said rod means.
In a further aspect, said rod means and said end means are formed of metal.
A metal tubular means surrounds a portion of said rod means and extends from said end means toward said second end of said rod means.
A metal end member is connected to said second end of said rod means and supports said connecting means

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