Static structures (e.g. – buildings) – With piercing or expanding earth anchor
Reexamination Certificate
2000-05-23
2001-08-14
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
With piercing or expanding earth anchor
C052S157000, C248S545000, C248S521000, C135S118000
Reexamination Certificate
active
06272798
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention is directed to an anchor for use primarily with tie-down systems for mobile homes, although it is certainly not restricted to such use.
Anchors have long been used to secure in place ropes and chains used with post and poles and also used with mobile homes. U.S. Pat. Nos. 995,297; 4,923,165; 5,157,882; and 5,927,677 each show various anchor structures as are now employed. No patent discloses an arrangement which both stabilizes the ground surface end of the anchor and maintains itself parallel with the ground surface during and after setting of the anchor into the ground soil.
Accordingly it is a primary object of this invention to provide an anchor which includes a stabilizing cap for stabilizing its upper end.
A further object of the invention is an anchor having a stabilizing cap which maintains itself parallel with the ground surface during setting of the anchor in the ground soil when the longitudinal axis of the anchor rod is not perpendicular with the ground surface.
Another object of the invention is the provision of an anchor having a stabilizing cap which pivots against the direction of pressure exerted on the anchor thereby further compacting the soil about the anchor rod.
Another object of the present invention is the provision of an anchor having a coupling which connects the stabilizing cap with the drive head in a manner which allows pivotal motion of the stabilizing cap in two directions.
Another object of the invention is the provision of an anchor which may be dissembled for shipping.
SUMMARY OF THE INVENTION
The instant invention is directed to an anchor for use with mobile homes, poles, walls, etc., with an increased resistance against bending when secured in ground soil. The post anchor comprises an elongated rod having a drive section located adjacent a first end and a boring section located below the drive section. The boring section includes at least one auger for boring into the ground soil. The drive section includes a drive connector, a stabilizing cap, and a coupling connecting the stabilizing cap with the drive connector in a manner which allows the stabilizing cap to swivel. The swiveling motion allows the stabilizing cap to be maintained in surface alignment with the ground soil during and after setting the ground soil. This swiveling capability further allows the stabilizing cap to move against pressure exerted against the rod which action further compacts the ground soil, increases the resistance against the rod bending.
The coupling comprises a pivot pin carried by the stabilizing cap and received through a pair of elongated bearings formed in the drive connector. This connection allows for longitudinal and vertical pivoting motion of the stabilizing cap.
The rod, which is normally metal, is about ¾″ in diameter and about 36″ in length. The stabilizing cap, which is also normally metal, is comprised of a planar disk of about 6″ in diameter and which includes a 1″ downwardly directed flange.
The anchor, which is primarily for use with mobile homes, comprises an elongated rod having a boring section and a drive section. The drive section includes a head secured with a first end of the rod and a stabilizing cap. The head includes a pair of fixed space upright flanges positioned laterally and above the upper end of the rod. Each flange is formed to include a substantially vertically elongated bearing. A mounting pin carried by the stabilizing cap, passes through the elongated bearing connecting the stabilizing cap with the head in a manner which allows horizontal and vertical pivotal movement of the stabilizing cap. This combination movement allows the stabilizing cap to remain aligned and evenly engaged with the ground surface about its periphery when the rod is set in the ground soil at an angle different from the longitudinal axis of the rod.
The stabilizing cap includes a central opening having a pair of upright shoulders arranged along opposed edges thereof. The opening is large enough to receive the head and to allow the pivotal movement of the stabilizing cap to take place about the head.
REFERENCES:
patent: D. 314328 (1991-02-01), Cobb
patent: 4863137 (1989-09-01), Cockman et al.
patent: 5456441 (1995-10-01), Callies
patent: 5713383 (1998-02-01), Ramirez et al.
patent: 6128867 (2000-10-01), MacKarvich
Flint & Kim, P.A.
Friedman Carl D.
Varner Steve
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