Patent Grant
10174559
Not applicable
Not applicable
The present invention relates to the selective placement of either auger type anchors or rods (e.g., ground rods) into the earth and more particularly to an improved powered drive apparatus that selectively buries (partially or fully) an auger or a rod type anchor (or other rod or ground rod) into the earth. More particularly, the present invention relates to a method and apparatus for selectively placing either an auger or a ground rod type anchor partially into or fully below the earth's surface using an improved drive arrangement. The improved drive arrangement enables both rotation and linear (non rotating) drive while guiding the selected anchor during installation. The drive can use a series of gear driven drive rollers that are each shaped to grip the outer surface of a section of tubing with a rotary shaft inside the tubing and wherein a frame supports the gears and the drive rollers. In one embodiment, a vibratory motor or impact driver aids in driving the selected rod or anchor.
Presently, a high torque drive mounted on a digger-derrick truck has been used to install auger type anchors in the utility industry. Auger type anchors are manually installed in remote areas (wetlands, swamps) using a handle or lever to rotate the anchor, since it is not possible to put very heavy equipment in such areas. This process is time consuming, labor intensive, and inefficient. Utility companies needed a way to drive ground rods in wetland areas. The only known existing commercially built ground rod drivers today are either large truck mounted units, which are designed to work in hard areas where the truck can be driven, or hand held units.
Some patents have issued that relate generally to drilling apparatuses, underground pipe or cable installation, vibratory earth boring systems, vibratory hammer/extractor devices, and methods of installing piling.
The Coast U.S. Pat. No. 6,305,882 is directed to rotary installation of an auger type anchor. The Coast U.S. Pat. No. 5,811,741 is directed to a system for installing a geophone. The Coast U.S. Pat. No. 6,234,260 is directed to a mobile drilling apparatus that can form boreholes in the earth. Each of these three Coast patents is hereby incorporated herein by reference.
The Thiery et al. U.S. Pat. No. 3,777,827, which is hereby incorporated herein by reference, discloses an apparatus for drilling a bore hole with a drill tool driven in rotation by a motor suspended from the end of a drill column constituted by a flexible drill pipe.
The Gosselin U.S. Pat. No. 3,872,932, which is hereby incorporated herein by reference, discloses a process that comprises progressively increasing the weight on the drill bit, determining the greatest value of the penetration rate of the drill bit during this period, progressively decreasing the weight on the drill bit when the penetration rate has reached a determined value and again progressively increasing the weight on the drill bit when the tension on the drill pipe has reached a fixed value. The passage from a period during which this weight decreased and vice-versa is achieved by varying the linear speed of the drill pipe at the ground surface, whereby the tension on the drill pipe is varied.
The Schosek U.S. Pat. No. 4,492,274, which is hereby incorporated herein by reference, relates to a light weight underground pipe or cable installing device adapted to be used in a narrow and deep operating trench. The Rossfelder et al. U.S. Pat. No. 4,603,748 discloses a vibrator system and a method for using a vibrator system to sink pipes or shape equipment. The prior art discussion contained in the '748 patent cites numerous patents and publications that relate in general to earth drilling, the sinking of piles, and pile driving.
The Staron et al. U.S. Pat. No. 4,718,048, which is hereby incorporated herein by reference, discloses a method of locating on drill pipe and ground recordings elementary recordings corresponding to one in the same depth level of the drilling tool, and grouping these elementary recordings in pairs, and then intercorrelating said recordings of the pairs so as to produce in respect of each pair a correlated signal which is representative of the acoustic energy produced and of the difference in travel times of the waves received on sensors from which the pair of recordings have been obtained.
A vibratory hammer and extractor apparatus is disclosed in the Warrington U.S. Pat. No. 4,819,740, which is hereby incorporated herein by reference.
The Andreasson U.S. Pat. No. 5,040,926, which is hereby incorporated herein by reference, relates to a pile which is intended to take compressive as well as tensile loads or to serve as a reinforcement member in soils. A pile is driven from a roller shaping unit by means of pressure in arbitrary directions into a mass of an earth layer. Upon attainment of the desired depth of penetration and/or pile length the pile is severed at or close to the upper surface of the earth layer.
A pile driving and/or pulling vibratory assembly with counter weights is disclosed in U.S. Pat. No. 5,355,964 issued to John White, which is hereby incorporated herein by reference.
The following table lists other possibly relevant patents, each of which is hereby incorporated herein by reference.
The present invention relates to an improved method and apparatus for selectively placing either an auger type anchor or a rod (e.g., an electrical ground rod) partially or fully beneath the surface of the earth.
The present invention can be mounted on various vehicles, including those that are less intrusive of delicate habitat such as a marsh or swamp habitat. Thus, the present invention can be mounted on an air boat, amphibious marsh craft, or truck.
The present invention provides an apparatus for selectively placing auger type anchors or ground rods or like rods into or beneath the surface of the earth.
The apparatus includes a machine frame and an outer elongated housing having a longitudinal bore, the housing supported by the frame.
An elongated inner (rotatable) pipe can be carried within the housing bore, the pipe having upper and lower ends.
An anchor holder can be positioned at the lower end of the pipe for removably attaching to an auger type anchor to be placed or installed.
A housing drive mechanism can include one or more (e.g. a plurality of) wheels carried by the frame for transporting the housing between upper and lower positions, including preferably one or more wheels that frictionally grip the housing outer surface.
An elevating mechanism can be provided that moves the housing, the pipe, and anchor holder into an inclined position, and can be rotatable about a pivot.
A rotary drive can be provided for rotating the inner pipe and an attached auger type anchor. Rotation of the auger type anchor drives it into the earth.
A linear drive is preferably offset from the rotary motor drive and attached to the outer elongated housing with a specially configured bracket or support. The linear motor drive can include an impact or hammer drive portion that imparts hammer blows to the top of a ground rod to be inserted into the earth. The linear, offset drive can be a commercially available rotary impact driver tool such as Model HRD-58 by Greenlee Fairmont Company.
In one embodiment, the linear drive preferably includes a lower opening having a diameter greater than the diameter of the rod or ground rod to be installed.
In one embodiment, a laterally extending member or bracket preferably supports and spaces the linear drive away from the elongated housing.
In one embodiment, the laterally extending member or bracket preferably has a clamp that clamps to the outer elongated housing.
In one embodiment, the bracket also preferably clamps to the linear (offset) drive.
In one embodiment, the outer elongated housing can be a square tubing.
In one embodiment, a rotary pipe drive can be carried at an upper end of the elongated housing for rotating the inner pipe.
In one embodiment, the bracket can be attached to the outer elongated housing below the housing drive mechanism.
In one embodiment, upper idler wheels can be provided on opposite sides of the housing.
In one embodiment, an apparatus is provided for placing either auger type anchors or rods such as ground rods into the earth. The apparatus preferably includes a machine frame, an elongated outer housing supported by the machine frame, the outer housing preferably having an upper end and a lower end.
A tubular anchor holder can be contained within the housing, the anchor holder enabling an auger type anchor to be positioned at the lower end of the housing and in general alignment therewith.
A housing drive mechanism can include one or more drive wheels carried by the frame and in general alignment therewith, enabling the housing to be transported between upper and lower positions. The housing can contain an inner pipe.
A rotary motor drive can be provided for rotating the inner pipe and an attached auger type anchor.
A linear drive can be provided that is offset from the rotary motor drive. The linear drive can include a hammer arrangement that imparts hammer blows to the top of a ground rod to be inserted into the earth.
In one embodiment, an apparatus is provided for selectively placing either an auger type anchor or a ground rod into the earth. The apparatus includes a machine frame, a housing carried by the frame, the housing having an upper end portion and a lower end portion.
An anchor holder can be positioned at the lower end of the housing, the anchor holder including a disconnectable connection for connecting to an auger type anchor that is to be placed into the earth.
A linear drive can be provided that enables force to be applied to an elongated rod such as a ground rod. The linear drive is offset from the rotary drive with a specially configured bracket. The linear drive moves along a line generally collinear with the rod during installation of the rod into the earth.
The linear drive can be offset from the rotary motor drive and attached to the outer elongated housing, the linear motor drive can include a hammer blow mechanism that imparts hammer blows to the top of a ground rod to be inserted into the earth.
The present invention also includes a method of selectively installing a selected screw type anchor or a selected ground rod into the earth.
As part of the method, a machine is provided that includes a chassis supporting a moving frame portion with a rotary motor drive, a linear drive that grips the outer surface of the moving frame portion during use and wherein the linear drive has a linear drive axis, and an anchor holder for forming a disconnectable connection with a selected screw type anchor or ground rod to be installed, the moving frame portion having an outer surface.
A connection can be formed between the screw type anchor and the anchor holder.
The frame can be moved (e.g., pivoted) relative to the chassis so that the screw type anchor holder supports the anchor in a selected inclined position before installation.
A selected screw type or auger type anchor holder can be rotated while simultaneously thrusting it with the housing drive toward the earth so that the anchor enters the earth while rotating and while oriented in a selected inclined position.
As part of the method, a user might select a ground rod instead of an auger type anchor.
The ground rod can be thrust into the earth using the offset, linear drive wherein the ground rod has an axis that is laterally offset from the linear drive axis. A specially configured bracket spaces the offset, linear drive away from the rotary drive, both drives preferably always being available so that either a selected anchor or rod can be quickly installed.
For a further understanding of the nature and objects of the present invention, reference should be had to the following detailed description, taken in conjunction with the accompanying drawings, in which like parts are given like reference numerals, and wherein:
A superstructure 14 is shown provided on vehicle 11. Superstructure 14 can be a welded structural frame, for example, to which the apparatus 10 of the present invention is mounted. A telescoping cylinder 15 mounts upon frame 14 for moving elongated housing 24 in between a horizontal storage position and an inclined position. Plate 16 on superstructure 14 provides trunion or pivot 17 to which telescoping hydraulically powered cylinder 15 is anchored. The end of cylinder 15 opposite pivot 17 provides a telescoping or extendable pushrod 18 that preferably extends and retracts responsive to hydraulic, controlled fluid as shown by arrow 19 in
A linear housing drive 20 is provided for thrusting the elongated outer housing or square tube housing 24 downwardly. A rotary drive 34 can simultaneously rotate anchor 27. The linear drive 20 can be comprised of a plurality of support rollers and driven sheaves with a gear mechanism such as the one shown and described herein or the one shown and described in prior U.S. Pat. No. 5,811,741, which is hereby incorporated herein by reference.
In
Auger type anchor 27 can have a square drive end at 28. It can be connected to elongated housing 24 at a square drive block 48 (see arrow 31 in
During insertion, linear motion is imparted to screw type anchor 27 while simultaneous rotary motion is imparted to screw anchor 27. Rotary motion is imparted to screw type anchor 27 by rotary motor drive 34 so that the combination of the linear drive 20 and rotary drive 34 moves the auger into the earth 30.
In
The bracket halves 42, 43 preferably provide recess or opening portions at 49, 50 that combine to provide a square opening 44 that is receptive of elongated housing 24. Each bracket half 42, 43 has openings receptive of bolts 40. Bracket half 43 has cylindrically shaped openings 51. Bracket half 42 has internally threaded openings 52. Bolts or bolted connections 40 are provided for bolting the bracket half 42 to the bracket half 43 and to provide a clamping action that holds the bracket 36 to the elongated housing 24. The clamping action of the bolted connection 40 clamps the bracket halves 42, 43 to the linear drive 35 at opening 45. Each bolt 40 passes through opening 51 and preferably forms a threaded connection with opening 52.
The drive 35 can provide a lower most end portion with a fitting 38 having a socket or opening or recess 39 that is receptive of an end portion of a rod 37 (for example, ground rod) that is to be thrust into the earth 30.
The apparatus of the present invention thus provides an improved configuration for driving either an auger type anchor or an elongated rod 27 into the earth 30. By providing the drive 35 that is offset from the housing 24, the drive 35 does not interfere with the square drive 48 that is used to install an auger type anchor 27. Similarly, because of the offset arrangement as seen in
The following table lists the parts numbers and parts descriptions as used herein and in the drawings attached hereto.
Because many varying and different embodiments may be made within the scope of the active concept herein taught, and because many modifications may be made in the embodiments herein detailed in accordance with the descriptive requirement of the law, it is to be understood that the details herein are to be interpreted as illustrative and not in a limiting sense.
The foregoing embodiments are presented by way of example only; the scope of the present invention is to be limited only by the following claims.
This application claims benefit of U.S. Provisional Patent Application Ser. No. 62/449,820, filed 24 Jan. 2017, which is hereby incorporated herein by reference. Priority of U.S. Provisional Patent Application Ser. No. 62/449,820, filed 24 Jan. 2017, which is incorporated herein by reference, is hereby claimed.
| Number | Name | Date | Kind |
|---|---|---|---|
| 701547 | Davis | Jun 1902 | A |
| 3148739 | Mattingly et al. | Sep 1964 | A |
| 3181623 | Lindgren | May 1965 | A |
| 3356163 | Rowe et al. | Dec 1967 | A |
| 3357502 | Elliott | Dec 1967 | A |
| 3777827 | Thiery et al. | Dec 1973 | A |
| 3869003 | Yamada et al. | Mar 1975 | A |
| 3872932 | Gosselin | Mar 1975 | A |
| 4164082 | Watson | Aug 1979 | A |
| 4492274 | Schosek | Jan 1985 | A |
| 4499698 | Hoyt et al. | Feb 1985 | A |
| 4603748 | Rossfelder et al. | Aug 1986 | A |
| 4718048 | Staron et al. | Jan 1988 | A |
| 4785892 | Luen | Nov 1988 | A |
| 4819740 | Warrington | Apr 1989 | A |
| 5040926 | Andreasson | Aug 1991 | A |
| 5174388 | Williams et al. | Dec 1992 | A |
| 5213449 | Morris | May 1993 | A |
| 5355964 | White | Oct 1994 | A |
| 5549168 | Sadler et al. | Aug 1996 | A |
| 5584603 | Cortlever | Dec 1996 | A |
| 5725329 | Chelminski | Mar 1998 | A |
| 5733068 | Reinert, Sr. | Mar 1998 | A |
| 5791820 | Rempel | Aug 1998 | A |
| 5811741 | Coast et al. | Sep 1998 | A |
| 6234260 | Coast et al. | May 2001 | B1 |
| 6305882 | Coast et al. | Oct 2001 | B1 |
| 6543966 | White | Apr 2003 | B2 |
| Number | Date | Country | |
|---|---|---|---|
| 62449820 | Jan 2017 | US |
