Patent US3778944A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3778944A Expired / Lapsed US ⏱️ 0.0 years remaining

Earth anchor

Assignee: Individual
•
Filing: 1972-07-12
•
Granted: 1973-12-18
•
Expires: 1992-07-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An earth anchor for insertion into a prepared hole in the ground. The anchor includes a rod having the first of two substantially identical disks perpendicularly disposed and fixedly attached to the lower end thereof. The rod is freely received in an aperture provided in the second disk. The second disk contiguously engages the first disk. The aperture in the second disk is positioned a predetermined distance from the center thereof and the predetermined distance corresponds to the location to which the rod is attached to the first disk. Therefore, rotational movement of the rod is effective to align or misalign the two disks. The prepared hole preferably is slightly larger in diameter than are the diameters of the disks so that when the disks are aligned, they may be inserted into the hole. Subsequent application of rotational force to the rod drives one of the disks into the undistrubed earth defining the hole. The disks are locked one to the other after being misaligned by thrusting a lock pin into lock pin apertures provided in both the disks. Additional rotational force applied to the rod may now drive the other disk into the undistrubed earth.

Inventors

  • 👤 C Easley

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 10:58
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/803

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 312 words
An earth anchor for insertion into a prepared hole in the ground, said anchor comprising an elongated rodlike member having a lower end thereto, a first disk having a diameter substantially equal to the diameter of the prepared hole, the plane of said first disk being perpendicularly disposed with respect to the longitudinal axis of said rodlike member, said rodlike member having said lower end thereof fixedly attached to said disk at a location thereon which is a predetermined distance from the center thereof for concurrent movement of said disk with said rodlike member, a second disk contiguously engaging said first disk and being substantially identical therewith, said second disk having an aperture provided therein with said rodlike member being freely received therethrough, said aperture being disposed a predetermined distance from the center of said second disk with rotational movement of said upper end of said rodlike member being effective to align and misalign said first and second disks one with the other, said first and second disks having lock pin apertures positioned equal distance from said rodlike member so that when said first and second disks are misaligned a predetermined amount said lock pin apertures are aligned, and a lock pin, said first and second disks being adapted to be inserted in the prepared hole whilE aligned one with the other and subsequent application of rotational force to said rodlike member being effective to drive said first disk into the undisturbed earth defining the prepared hole as said first and second disks are caused to become misaligned and said lock pin apertures are caused to become aligned whereby said lock pin is placed therethrough to lock said first and second disks together to prevent movement therebetween and subsequent application of rotational force to said rodlike member being effective to drive said second disk into the undisturbed earth defining the prepared hole.
Claim 2
Dependent Claim 312 words
An earth anchor for insertion into a prepared hole in the ground, said anchor comprising an elongated rodlike member having a lower end thereto, a first disk having a diameter substantially equal to the diameter of the prepared hole, the plane of said first disk being perpendicularly disposed with respect to the longitudinal axis of said rodlike member, said rodlike member having said lower end thereof fixedly attached to said disk at a location thereon which is a predetermined distance from the center thereof for concurrent movement of said disk with said rodlike member, a second disk contiguously engaging said first disk and being substantially identical therewith, said second disk having an aperture provided therein with said rodlike member being freely received therethrough, said aperture being disposed a predetermined distance from the center of said second disk with rotational movement of said upper end of said rodlike member being effective to align and misalign said first and second disks one with the other, said first and second disks having lock pin apertures positioned equal distance from said rodlike member so that when said first and second disks are misaligned a predetermined amount said lock pin apertures are aligned, and a lock pin, said first and second disks being adapted to be inserted in the prepared hole whilE aligned one with the other and subsequent application of rotational force to said rodlike member being effective to drive said first disk into the undisturbed earth defining the prepared hole as said first and second disks are caused to become misaligned and said lock pin apertures are caused to become aligned whereby said lock pin is placed therethrough to lock said first and second disks together to prevent movement therebetween and subsequent application of rotational force to said rodlike member being effective to drive said second disk into the undisturbed earth defining the prepared hole.
Claim 3
Dependent Claim 28 words
The earth anchor of claim 1 in which is included means fixedly attached to said rodlike member for preventing axial movement of said disk along said rodlike member.
Claim 4
Dependent Claim 28 words
The earth anchor of claim 2 in which the perimeters of said first and second disks are beveled to knifelike edges to facilitate penetration through the undisturbed earth.

References Cited (Backward Citations)

US766100A Cited
US975543A Cited
US1239820A Cited
US1343384A Cited
US1742162A Cited
US2490187A Cited
US2672961A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-17 1977-06-18 1977-12-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-17 1981-06-18 1981-12-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-17 1985-06-18 1985-12-18 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag