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Tree stump removal method and apparatus
| Details |
Inventors: Murphy, Jeffrey W.;
Assignee:
Primary Examiner: Bray; W. Donald
Assistant Examiner:
Attorney, Agent or Firm: Seed and Berry
A method and apparatus for removing pieces of wood, such as stumps, from a logging site. In particular, the method entails driving a spike into a given piece of wood, attaching a line to the spike, pulling the piece of wood to a desired area away from the logging site, and then removing the spike from the piece of wood. Also provided is a spike having a head that has a first, broad width at the top of the head, a second, narrow width below the first, broad width, and one or more shafts extending from the second narrow width of the head. Further, the head of the spike has a hole therethrough able to receive a line so that the spike, upon being driven into a chunk of wood, can be pulled to the desired area. Also provided is a spike removal device wherein a forked pressure plate and a forked grabber plate are placed about the second, narrow portion of the spike, then extended away from each other, thereby contacting the broader, first section of the spike and the piece of wood, thereby removing the spike from the wood. |
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DETAILED DESCRIPTION The present invention is directed towards a simple method and lightweight apparatus for removing pieces of wood such as tree stumps and other debris, such as wood chunks and non-wood debris able to receive a spike, from a logging site.
The method and apparatus significantly reduce damage to the ground, and increase the ability to remove pieces of wood from steep and uneven terrain.
The apparatus can be carried by a single individual and can use lines and machinery routinely present at a logging site.
Further, a significant feature of the present invention is that it allows removal of stumps at or near ground level.
This can include the removal of stumps at an angle where the stumps are present on angled ground, such as the side of a mountain.
This feature of the invention is particularly advantageous in that prior and present methods of logging, as well as safety requirements, have required that trees be cut a certain amount above the ground, thereby leaving a stump that is at least 1 foot high and which may be 5 feet high or more on one side when the stump is on a steep hill.
Such stumps have, to this point, been left in the ground, thereby failing to fully utilize all of the available wood and pulp material.
Also, after the area has regrown, such stumps can destroy later-cut timber that is felled upon the stumps.
As much as 5 percent or more of the timber at a given logging site can be destroyed by such breakage over old stumps.
In one aspect, the present invention provides a method for removing pieces of wood from a logging site.
In the method, a spike is driven into a piece of wood wherein the spike has a head suitable for receiving a line, such as a cable.
The line can be attached either before or after driving the spike into the piece of wood.
Then, the line is used to pull the piece of wood to a desired area, such as the landing area typically at the top of a logging site.
Finally, the spike is pulled from the piece of wood, thereby allowing the wood to be used for pulp to produce paper or for other purposes, and freeing the spike for use with another piece of wood
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