Earth working – With wheel; or supported on wheel frame or broadly claimed... – Vertically adjustable tool
Reexamination Certificate
2000-06-12
2001-09-11
Batson, Victor (Department: 3671)
Earth working
With wheel; or supported on wheel frame or broadly claimed...
Vertically adjustable tool
C172S576000, C172S799500, C172S452000
Reexamination Certificate
active
06286608
ABSTRACT:
CROSS-REFERENCES TO RELATED APPLICATIONS
Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not Applicable
MICROFICHE APPENDIX
Not Applicable
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to farm and garden plows that are towed behind a garden or small farm tractor. Typical uses of this type of chisel plow are plowing furrows for relatively small farms or gardens. The convenience of being able to hook-up a detachable garden plow to a small multi-purpose tractor is an important factor. This invention relates to a detachable garden type chisel plow, which has an object to assist the user in performing several different small farm or garden tasks.
2. Description of the Prior Art
In the prior art, most farm and garden plows have been designed with a singular purpose such as plowing of a single furrow for subsequent planting. Such a disclosure is made in U.S. Pat. No. 6,012,534, which has a single chisel plow shank with a pair of spring, based narrow wheels mounted on either side of the chisel plow shank. The wheels firm up the surface of the berm formed by the chisel plow without reducing the depth of the furrow. This minimum soil displacement plow has small narrow wheels positioned at the rear of the chisel plow point and with the plow shank in a slight downward bias by means of a cushion spring to firm the surface of the berm without substantially compacting the soil. This patent does not teach the use of independent self raising gas pressurized lift jacks mechanism attached to a chisel point plow, nor the convenient small garden tractor plate tow capability or trailer. It is patently distinct from the present invention, which is designed to perform multiple and varying tasks.
Other types of plows such as shown in U.S. Pat. No. 5,954,139. Which is for a device for tilling with large tractors with a hydraulic, reset mechanism. This patent reveals a hydraulic system with a pressure relief valve that is activated when the tillage instruments engage obstructions. This patent shows multiple tillage wheels and a soil-engaging knife for plowing multiple rows in one pass. This patent does not reveal the use of independent self-raising gas pressurized lift jacks mechanism attached to a chisel point plow. Also, it reveals the use of the conventional three-point hitch of a tractor not the plate tow capability with a small diameter hole in the tow plate of the present invention.
A multi-purpose chisel plow disclosed by the prior art is observed in U.S. Pat. No. 4,524,837. This invention has a main frame, with one or more subsoiler assemblies including soil conditioning device, a trash-cutting implement, and a seedbed preparation device. A key feature of this invention in improving the soil conditioning is a rotatable member of the slot filtering assembly which fills soil voids in the plowed furrow left by the chisel plow apparatus. However, this invention does not reveal use of independent self-raising gas pressurized lift jacks mechanism attached to the chisel point plow. Further, it is likely that this apparatus is designed to be pulled by a conventional three-point hitch of a tractor. As such this disclosure is also patently distinct from the present invention.
U.S. Pat. No. 4,801,126 reveals a basic three-chamber lift jack having a gas pressurized hydraulic lift system. The commercial gas pressurized lift jacks apparatus disclosed therein, appears to he an early iteration of gas pressurized hydraulic system mechanisms. However, this patent does not show the independent self-raising gas pressurized lift jack mechanism in use as disclosed in the present invention.
SUMMARY OF THE INVENTION
In accordance with this invention, a detachable Sod Buster garden type chisel plow that is towed behind a small farm or garden tractor unit and which can loosen soil and plow to a depth slightly over sixteen inches. This apparatus includes a horizontal support frame affixed to two rotatable wheels and having two parallel support frame members which are hingedly attached to a transport device frame affixed to a garden tractor mounting plate type or tow bar hitch. The chisel plow is attached to a plow shaft, which is affixed to a horizontal jack support frame member. The chisel plow is pivotally attached at one end a bracket, which is also pivotally attached to support bracket. Plow engagement rope is threaded through pulleys and rope cleat attached to tee frame which is attached to the chisel plow shaft and attached to the wheel support frame. Pulling the plow engagement rope tightens the rope causing chisel plow to overcome the constant pressure exerted by two gas-pressurized lift jacks, also known as gas springs or gas pressurized lift supports, and into the soil for plowing.
Although only a few exemplary embodiments of the present invention have been described in detail above, those skilled in the art will readily appreciate that many modifications and substitutions are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of the invention. Accordingly, all such modifications and substitutions are intended to be included within the scope of the invention as defined in the claims.
REFERENCES:
patent: 1711071 (1929-04-01), Walker
patent: 2672084 (1954-03-01), Forgy
patent: 2970658 (1961-02-01), Kopaska
patent: 3266180 (1966-08-01), Toland
patent: 3589451 (1971-06-01), Wenzel
patent: 3698489 (1972-10-01), Norrell et al.
patent: 3766989 (1973-10-01), Lepp
patent: 4200157 (1980-04-01), Anderson
patent: 4228861 (1980-10-01), Hart
patent: 4520742 (1985-06-01), Anderson
patent: 4524837 (1985-06-01), Harden
patent: 4608933 (1986-09-01), Wyrill, III
patent: 4801126 (1989-01-01), Rosman
patent: 5427184 (1995-06-01), Peck
patent: 5540288 (1996-07-01), Dietrich, Sr.
patent: 5954139 (1999-09-01), Forsyth
patent: 6012534 (2000-01-01), Kovatch et al.
LandOfFree
Sod buster apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sod buster apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sod buster apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2537240