Patent US5314288A successfully refreshed from Google Patents.
Patent US3855745A successfully refreshed from Google Patents.
US3855745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth anchor
Assignee: MERIT SYST Inc
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Filing: 1973-11-05
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Granted: 1974-12-24
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Expires: 1993-11-05
Abstract
Abstract Apparatus for forming an earth anchor includes a rod having a pointed tip with a tapered shoulder connected at an end of the rod, the tip facilitating the driving of the rod into the earth. Overfitting the rod to bear against the tapered shoulder is a sleeve having pre-defined division lines longitudinally from an end thereof. A driving tube is fitted over the rod within the earth to drive the sleeve into engagement with the shoulder, thereby flaring the ends of the sleeve along the division lines into the earth. Means are provided for securing the shaft during the driving operations to prevent the shaft from being further driven into the earth. Also presented are means for flaring a top portion of the cylinder to further enhance the nonremoval properties of the anchor. Additionally presented are apparatus for forming plural anchor members upon the rod, having either single or top flared portions for effecting its nonremoval properties. Additionally presented is an earth anchor which is capable of resisting tension or compressional forces by virtue of an upwardly extending elongated cylinder attached to the outwardly flared members of the flared sleeve.
Inventors
- 👤 M Patterson
- 👤 L Caves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:55
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/805
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
142 words
Apparatus for making an earth anchor, comprising: a pair of coaxially disposed sleeves each being at least scored along a portion of their lengths to facilitate separation of said sleeves between the scored portions upon application of a spreading force thereto, a rod located within said sleeves of length sufficient to extend to near the surface of the earth when said sleeves are located at a desired depth within the earth, wedge means attached to an end of said rod to engage at least the inner of said sleeves at its bottom, a driving tube placeable over said rod to engage at least one of said sleeves at its top, and means for applying a force between said driving tube and said rod whereby said wedge means is moved into said sleeves to apply a spreading force to flare the bottoms thereof.
Claim 2
Dependent Claim
142 words
Apparatus for making an earth anchor, comprising: a pair of coaxially disposed sleeves each being at least scored along a portion of their lengths to facilitate separation of said sleeves between the scored portions upon application of a spreading force thereto, a rod located within said sleeves of length sufficient to extend to near the surface of the earth when said sleeves are located at a desired depth within the earth, wedge means attached to an end of said rod to engage at least the inner of said sleeves at its bottom, a driving tube placeable over said rod to engage at least one of said sleeves at its top, and means for applying a force between said driving tube and said rod whereby said wedge means is moved into said sleeves to apply a spreading force to flare the bottoms thereof.
Claim 3
Dependent Claim
66 words
The apparatus of claim 1 further comprising a second wedge means fittable over said rod to engage the top of at least the inner one of said pair of sleeves, whereby when a force is applied by said means for applying a force between said driving tube and said rod, said second wedge means applies a spreading force to said sleeves to flare the tops thereof.
Claim 4
Dependent Claim
151 words
The apparatus of claim 2 wherein said sleeves comprise: an inner cylinder having a plurality of scores along its length, said scores being spaced equally around the circumference of said cylinder, a first outer cylinder, fitable coaxially over a bottom portion of said inner cylinder, said first outer cylinder having a plurality of scores along its length, said scores being equally located around the circumference of said first outer cylinder, and disposed angularly displaced from the scores of said inner cylinder, a second outer cylinder, fitable over a top portion of said inner cylinder, said second outer cylinder having a plurality of scores along a portion of its length, said slots being equally spaced around the circumference of said second outer cylinder and disposed angularly displaced from the scores of said inner cylinder, said inner cylinder and said first and second outer cylinders being attached together to form a single unit.
Claim 5
Dependent Claim
24 words
The apparatus of claim 3 wherein said first and second outer cylinders are cut along a substantial portion of their lengths along said scores.
Claim 6
Dependent Claim
67 words
An earth anchor, comprising: an anchor rod, a pair of sleeves, one disposed within the other, located on said anchor rod, and means attached to said anchor rod for engaging said sleeves to prevent said rod from moving longitudinally upwardly therefrom, said sleeves being flared at the their top and bottom portions into the earth to thereby prevent said anchor rod from being removable from the earth.
Claim 7
Dependent Claim
67 words
An earth anchor, comprising: an anchor rod, a pair of sleeves, one disposed within the other, located on said anchor rod, and means attached to said anchor rod for engaging said sleeves to prevent said rod from moving longitudinally upwardly therefrom, said sleeves being flared at the their top and bottom portions into the earth to thereby prevent said anchor rod from being removable from the earth.
Claim 8
Dependent Claim
13 words
The earth anchor of claim 5 wherein said pair of sleeves are cylindrical.
Claim 9
Dependent Claim
61 words
The earth anchor of claim 6 wherein said sleeves comprise: an inner sleeve, an outer sleeve, including, a first outer sleeve locatable at a bottom portion of said inner sleeve, and a second outer sleeve, locatable at a top portion of said inner sleeve, said inner sleeve and said first and second outer sleeves being attached together to form a unit.
Claim 10
Dependent Claim
35 words
The earth anchor of claim 7 wherein the flared portions of said inner sleeve are of generally curled configuration and the flared portions of said first and second outer sleeves are of generally straight configuration.
Claim 11
Dependent Claim
100 words
An anchor for attachment to rocklike materials, comprising an anchor rod, a pair of sleeves, one disposed within the other, located on said anchor rod within a predrilled hole within said rocklike materials, and means attached to said anchor rod for engaging said sleeves to prevent said rod from moving longitudinally upwardly therefrom, said sleeves being flared at their bottom portions into the rocklike materials, said other of said pair of sleeves being buckled outwardly at a top portion thereof to engage the rock within the preformed hole to prevent said anchor rod from being removable from said rocklike material.
Claim 12
Dependent Claim
100 words
An anchor for attachment to rocklike materials, comprising an anchor rod, a pair of sleeves, one disposed within the other, located on said anchor rod within a predrilled hole within said rocklike materials, and means attached to said anchor rod for engaging said sleeves to prevent said rod from moving longitudinally upwardly therefrom, said sleeves being flared at their bottom portions into the rocklike materials, said other of said pair of sleeves being buckled outwardly at a top portion thereof to engage the rock within the preformed hole to prevent said anchor rod from being removable from said rocklike material.
Claim 13
Independent Claim
80 words
The method of fabricating an earth anchor in a preformed hole comprising the steps of: locating a first cylinder coaxially about a second cylinder, attaching a cylindrical wedge to an end of an anchor rod, placing said cylinders upon said anchor rod in engagement with said wedge, locating said anchor rod and said sleeves within said preformed hole, and applying a force between said sleeves and said anchor rod to flare the bottom portions of said first and second sleeves.
Claim 14
Independent Claim
80 words
The method of fabricating an earth anchor in a preformed hole comprising the steps of: locating a first cylinder coaxially about a second cylinder, attaching a cylindrical wedge to an end of an anchor rod, placing said cylinders upon said anchor rod in engagement with said wedge, locating said anchor rod and said sleeves within said preformed hole, and applying a force between said sleeves and said anchor rod to flare the bottom portions of said first and second sleeves.
Claim 15
Dependent Claim
45 words
The method of claim 10 further comprising the step of locating a wedge upon said anchor rod above said first and second cylinders, and applying a force between said wedge and said anchor rod, to flare the top portions of said first and second cylinders.
Claim 16
Dependent Claim
42 words
The method of claim 10 further comprising the step of continuing to apply a force between said first and second cylinders to cause said first cylinder to buckle at a top portion thereof, said buckled portion engaging the earth adjacent said hole.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |