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Publication numberUS3342444 A
Publication typeGrant
Publication dateSep 19, 1967
Filing dateJul 12, 1965
Priority dateJul 12, 1965
Publication numberUS 3342444 A, US 3342444A, US-A-3342444, US3342444 A, US3342444A
InventorsNelson Walter M
Original AssigneeAllen W Key, Morris P Crowder
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Post stabilizer
US 3342444 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

P 39, 1957 w. M. NELSON 3,342,444

POST STABILIZER Filed July 12, 1965 BY mam ATTORNEYS United States Patent 3,342,444 POST STABILIZER Walter M. Nelson, Roanoke, Va., assignor to Allen W. Key and Morris P. Crowder, both of Roanoke, Va. Filed July 12, 1965, Ser. No. 471,126 9 Claims. (Cl. 248156) This invention relates generally to a post stabilizer. More particularly, the present invention relates to a post stabilizer for insertion into the ground surrounding the post, so as to substantially inhibit sidewise or rocking movement of the post in the ground.

Post stabilizers have been known in the art for many years, during which time many attempts have been made to provide a simple, economical stabilizer that will maintain the post in vertical positions. However, it has been found that these post stabilizers have been substantially ineffective or too costly to use.

Today the common materials used for posts are steel, iron, or aluminum, which, usually because of their strength, have a relatively small outside diameter; therefore, when inserted into the ground, they would easily be subject to sidewise or rocking movement. To substantially prevent this sidewise movement, it is the conventional practice to set the post in a concrete base, which is inserted into and below the ground level. While such a base is effective, the cost of the operationparticularly the laboris an outstanding disadvantage to this conventional approach.

Accordingly, one of the principal objects of the present invention is to provide a post stabilizer which is effective in maintaining the post in vertical position and yet is sim ple and economical to install with the post.

It is also an object of the present invention to provide a post stabilizer which compacts the ground during insertion and which also compacts the ground around thepost in the event of attempted sidewise movement of the post.

These and other objects and advantages of the present invention will become apparent to those skilled inthe art from the following description 'when read in conjunction with the accompanying drawing, wherein:

FIGURE 1 is a perspective view of the invention surrounding the post hole in the ground;

FIGURE 2 is an enlarged perspective view of the post stabilizer comprising the present invention;

FIGURE 3 is a side elevational view of the post stabilizer, and

FIGURE 4 is a plan view of the stabilizer in accordance with another embodiment of the invention.

Briefly, the present invention relates to a stabilizer for posts and the like which comprises an elongated open-end sleeve body having a plurality of radially extending fins connected to the body and tapering downwardly and inwardly the length of the body towards its bottom, the fins being equidistantly spaced around the circumference of the body and cross head members secured to the outer portions of the fins adjacent the upper end of the sleeve,

the cross head members being susbtantially planar and having downwardly tapered sides, the construction being such that the stabilizer sleeve body, when positioned around the post, acts to substantially inhibit sidewise or.

rocking movement of the post.

Viewing FIGURES 1, 2 and 3, it can be seen that stabilizer S, in accordance with the present invention, embodies or includes a sleeve body 10, which is elongated and open at the top 12 and bottom 14 ends. The sleeve is shown in the drawing to be cylindrical; however, it is to be understood that the shape is optional and could also be in the form of a right parallelepiped. The stabilizer S is preferably made of a strong metal, such as iron or steel, but may also be made of aluminum or impact resistant plastic.

3,342,444 Patented Sept. 19, 1967 The significant aspects of the invention are embodied in the fins 16, which are spaced equi-distantly around the outside of the circumference of the sleeve 10, as best shown in FIGURES 2 and 4, and extend radially outwardly at least one-half the outside diameter of the sleeve. It is important that these fins be arranged substantially approximately apart, in order to achieve an angular compaction of the earth when surrounding the post P. Other angular arrangements have not proved to be as effective in compacting the ground. As shown, the fins are secured, as by welds 17, at a point preferably down from the top 12, in order to permit a bolt 20, or other suitable connection such as a nail, to be made through opening 18, which passes completely through the sleeve and is adapted to receive the bolt so as to secure the post to the sleeve.

The fins 16, as shown, are substantially trapezoidal in shape-that is, they have an upper end 22, which is substantially horizontal and preferably positioned somewhat below the upper end of the sleeve. The fin has a tapered leading edge 24, which tapers radially downwardly and inwardly towards the lower or bottom end 14 of the sleeve. This tapered edge 24 meets a vertical edge 26 of the fin at 28. The vertical edge 26 is substantially parallel to the vertical axis of the sleeve 10 and serves the purpose of providing the location for the cross head members 30.

Secured to the fins 16 along edge 26 at their approximate mid-point are spade or cross head members 30, which are preferably made of the same material as the fins and sleeve. These cross head members 30, as shown in FIGURE 2, are substantially fiat or planar and include a trailing edge 32, which is substantially coplanar with the upper or trailing edge 22 of the fin 16. The spade member 30 also has vertical sides 34, which are parallel to the axis of the sleeve. The forward or leading edges 36 of the spade member are tapered downwardly, so as to converge at a substantially pointed end 38. As shown best in FIGURE 3, the tapered edges 36, which form the leading edges of the cross head, are of somewhat greater length than the length of the vertical edge 34, in order to facilitate the entry of the stabilizer in the ground. The length of the cross head 30 is such that the point 38 extends below the mid-point of the length :of the sleeve'body.

tion, particularly in preventing upward or sidewise move ment.

The embodiment of FIGURE 4 is similar in all respects to the embodiment of FIGURES 1 through 3, except that the cross head member 30 is angled outwardly and its leading edge away from the long axis of the sleeve body 10 by approximately 5 to 15, and preferably 10. In this event edge 26 may be suitably inclined, in order to position the cross head at an angle, or else the welding connection 42 may be such as to position the cross head at the flaring angle. The purpose of the outward flare of the cross head 30 is to enhance operation of the pincering means and also to operate as a wedge in compacting the ground inwardly towards the sleeve body as the stabilizer is driven into the ground. It should be manifest that the compaction of the ground in towards the sleeve by means of the cross head adds subrocking or sidewise movement of the post P.

As an example of the advantages attributable to the present invention, a test was made in which a post in the form of a 2" diameter pipe was sunk to a depth of and was anchored by means of 7" x 12 concrete cylindrical slab extending from the top surface of the ground to a depth of 12'. Commercial Sacrete with gravel was used to cast the concrete anchor and was aged 20 hours at the time of the test. The approximate surface area of the anchor slab that ofiered resistance to a measured force applied perpendicular to the axis of the test post was 132 sq. ins.

In comparison to this, a test post which was also a 2 diameter pipe, in accordance with the present invention, was sunk to a depth of 20" in the same soil and was anchored by means of the present stabilizer having fins, each with an area of approximately 26.125 sq. ins. The post stabilizer was then slipped over the post and driven flush with the surface of the ground. The approximate surface area of the stabilization fin that offered resistance to a measured force applied perpendicular to the axis of the test post was 72.250 sq. ins.

The total force required to break the test posts loose from the earth was measured by using a hydraulic jack assembly with a calibrated dial gauge.

It was determined that both posts withstood identical loading of 1200 lbs. before yielding. It should be clear from this test that the use of the post stabilizer in accordance with the present invention, which is simply and easily installed, attains the same effectiveness as a cast slab of concrete positioned around the same pipe, thus resulting in substantial savings in time and cost. Also, the post stabilizer is simply installed in a matter of minutes by being forced into the ground with a standard hammer or sledge, without any necessity for enlarging the hole receiving the post.

From the foregoing detailed description, it will be evident that there are a number of changes, adaptations, and modifications of the present invention which come within the province of those skilled in the art; however, it is intended that all such variations not departing from the spirit of the invention be considered as within the scope thereof as limited solely by the appended claims.

I claim:

1. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

2. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer pertions of said fins substantially adjacent the top end of said sleeve, I

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pincering means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

3. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pinceriug means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

said cross head member each having substantially pointed ends extending downwardly to below the mid-p oint of the length of said body,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

4. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom an top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pincering means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

said cross head member each having substantially pointed ends extending downwardly to below the mid-point of the length of said body,

the plane of said cross head extending from the top radially outwardly away from the longitudinal axis of said body,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movements of said post.

5. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pincering means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

said cross head member each having substantially pointed ends extending downwardly to below the mid-point of the length of said body,

the plane of said cross head extending from the top radially outwardly away from the longitudinal axis of said body about 5 to 15,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

6. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pincering means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

said jaw opening extending at least one-third the length of the body,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

7. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pincering means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

said jaw opening extending at least one-third the length of the body,

said cross head member each having substantially pointed ends extending downwardly to below the mid-point of the length of said body,

the plane of said cross head extending from the top radially outwardly away from the longitudinal axis of said body about 5 to 15,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

8. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending at least one-half the greatest internal diameter of said body and substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post 9. A stabilizer for posts and the like comprising:

an inner sleeve body,

said sleeve 'being elongated and open at the bottom and top ends,

a plurality of radially outwardly extending fins connected to said body,

said fins extending at least one-half the greatest internal diameter of said body and substantially the length of the body and tapering downwardly and inwardly towards the bottom of the body,

said fins being positioned substantially 120 apart around the circumference of said body,

W cross head members secured to the radially outer portions of said fins substantially adjacent the top end of said sleeve,

said cross head members being substantially planar and having downwardly tapering sides,

pincering means positioned between each said cross head member and said fin,

said pincering means comprising a jaw opening between the tapering portion of said fin and the rear face of said cross head,

said jaw opening extending at least one-third the length of the body,

said cross head member each having substantially pointed ends extending downwardly to below the mid-point of the length of said body,

the plane of said cross head extending from the top radially outwardly away from the longitudinal axis of said body about 5 to 15,

whereby said stabilizer sleeve body when surrounding a post substantially inhibits sidewise movement of said post.

References Cited UNITED STATES PATENTS 266,261 10/1882 Copeland 52154 741,150 11/1903 Cooper 52/154 1,263,132 4/1918 Sharpe 52155 1,402,561 1/1922 Banks 52-156 X FOREIGN PATENTS 651,435 10/1962 Canada.

ROY D. FRAZIER, Primary Examiner. CLAUDE A. LE ROY, Examiner.

I. F. FOSS, Assistant Examiner.

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Classifications
U.S. Classification52/165, 248/530, 52/154, 52/298, 248/156
International ClassificationE04H12/22
Cooperative ClassificationE04H12/2215
European ClassificationE04H12/22A1