Class 172/120 - Disk or planar cutter (e.g., saw, etc.)

Subclass of Class 172 - Earth working
Definition: Apparatus in which an earth working element which is driven
No. of patents: 28
Last issue date: 02/05/2008

Number	Title	Issue Date
7327061	AC generator and method One aspect of the invention is a generator with at least two commutators mounted on a rotatable shaft. At least two magnetically conductive bars may be mounted in an opposed relationship with at least one of the bars passing through a wire coil. At least two magnets...	02/05/2008
7303025	Motor-driven work apparatus A rotatably driveable work tool (1) of a motor-driven work apparatus has, at a front end (2, 3), an end plate (5, 6) lying perpendicularly to a rotational axis (4). The end plate (5, 6) has an outer diameter (DR) which i...	12/04/2007
7122932	Rotor for an induction device According to one embodiment, the present invention provides a rotor assembly. The exemplary rotor assembly includes a plurality of rotor laminations, which cooperate to form a rotor core, capped at each end by end members. Extending through the rotor core and the en...	10/17/2006
7108075	Seedbed preparation implement having rotary disc with adjustable gang angle A disc gang is provided that is suitable for use as part of a multifunctional seedbed preparation implement or in a standalone disc harrow. The disc gang is configured to permit a gang angle of the disc gang to be adjusted to accommodate differing soil conditions an...	09/19/2006
7000708	Seedbed preparation implement having rotary disc with adjustable gang angle A disc gang is provided that is suitable for use as part of a multifunctional seedbed preparation implement or in a standalone disc harrow. The disc gang is configured to permit a gang angle of the disc gang to be adjusted to accommodate differing soil conditions an...	02/21/2006
5988037	Mine clearing vehicle A mine clearing vehicle (1) having a milling cutter drum (2) adapted to tear up soil, plant parts, mines, etc. on or within the top soil layer. The milling cutter drum (2) may advantageously be divided into discs (7) provided with teeth (8)....	11/23/1999
5964049	Trencher A trencher has an adjustable depth arbor support mechanism. The depth control mechanism includes a linkage which normally controls the depth of the trench being dug, but which also will allow the arbor to retract from the ground if it hits an obstacle. Pr...	10/12/1999
5829537	Clay court scarifier A clay surface scarifier includes a portable frame with a first axle and a second axle rotationally connected thereto. At least one scarifying blade, having a cutting edge orthogonal to the first axis, is attached to the first axle and rotatable therewith...	11/03/1998
5287934	Soil working implement There is disclosed a plow constructed for displacement, by a traction vehicle, a predetermined direction. It comprises a cultivator having a generally U-shaped frame with a pair of lateral arms parallel to the above direction and interconnected by a bight...	02/22/1994
5222562	Cultivator attachment An attachment for use with an agricultural implement to protect a row of emergent plants growing in a field. The device includes a shield which protects the plants from accumulations of soil, trash, and other debris. The shield is mounted between one or m...	06/29/1993
5156218	Landscape edging attachment A landscape edging machine detachably mounted to the frame of a commercial mower and connection to the power-takeoff shaft to provide rotational power through a drive mechanism to a rotatable cupped disc is disclosed wherein the edging machine is provided...	10/20/1992
5048616	Garden tiller tine assembly A garden tiller tine assembly for use with a tiller assembly which includes a drive shaft having a longitudinal axis of rotation includes a rotary blade aligned at a predetermined angle with respect to the axis of rotation. The planar body of the rotary b...	09/17/1991
5038868	Ground cultivator A cultivation implement which is comprised generally of forward and rear thatching reels which rotate in opposite directions relative to each other under positive drive power from a tow vehicle, such as a tractor. Each reel unit is rotatably disposed in i...	08/13/1991
4958457	Trench digging or root cutting device An apparatus for ditch digging or root pruning having a main frame on which a motor drive mechanism and a cutting wheel are supported. A secondary frame portion or undercarriage is pivotally attached to the main frame. The cutting wheel is preferably moun...	09/25/1990
4869115	Automatic soil sampling machine The present invention entails an automatic soil sampling machine that is pulled through the field by a prime mover. A disk is utilized and is power driven by an internal combustion engine or other power source. About the outer circumference of the disk th...	09/26/1989
4564073	Plow or harrow An improvement of a plow or a harrow of the type in which a plurality of saucer-like disks carried by a rotary shaft inclined at an angle with respect to the direction of travel of a tractor are forced to rotate, thereby plowing uncultivated farm land. Th...	01/14/1986
4469185	Cutter wheel for tillage apparatus An improved cutter wheel that is particularly useful with tilling apparatus for sod seeding purposes. The cutter wheel is mounted for rotation by a drive structure that includes a drive shaft. The cutter wheel includes a central disk portion with an outer...	09/04/1984
4416335	Ground-clearing and mound-building scarifier A ground-clearing and mound-building device is provided that can be towed along the ground to move material on the surface to one side, expose the surface of the ground, and build mounds on the cleared ground for planting and forest regeneration, having a...	11/22/1983
4284146	Soil working machine A soil working machine pivotably mounts at least one rotor having serrated working elements. The rotor is pivotally connected at each end to a frame beam by a pin which can be inserted into either one of two holes located one above the other. The hole cho...	08/18/1981
4216832	Furrowing tool A rotary tool is disclosed which is adapted to be mounted on a machine having power drive means and movable over a field surface to produce furrows therein. The rotary tool comprises bit elements mounted in abutting relation from a peripheral surface of a...	08/12/1980
4136744	Ground driven power tillage device A power tillage device is provided having a passive rolling coulter as the prime mover for a power tillage blade which is carried in the lead of the coulter on a transfer case mounted as a radius arm on the counter shaft. The tillage blade rotates in the ...	01/30/1979
4094362	Apparatus for fine grading compacted earth A device for cutting, chipping and scraping compacted earth is disclosed. The apparatus is affixed to a prime mover for rotary engagement with the earth, whereby the compacted earth is selectively loosened and/or moved. The blade design disclosed is parti...	06/13/1978
4059161	Tillage apparatus and improved blade therefor A tillage apparatus for sod seeding usage includes a plurality of tillage unit assemblies having power driven blades receiving power from a tractor which tows the apparatus. An improved tillage blade is disclosed....	11/22/1977
4051792	Structural orientation and protective apparatus for tillage assembly A structural orientation and protective apparatus is disclosed that is particularly useful in a tillage assembly for sod seeding purposes. The apparatus includes a pair of skids each of which is adjacent to a cutter wheel mounted on the tillage assembly f...	10/04/1977
4047576	Cultivator wheel for agricultural machines A cultivator wheel is disclosed for use in agricultural machines. It has a hub and tines which project substantially radially from the hub and are provided with pointed outer end portions. These tines are bent out of the central radial plane of the wheel....	09/13/1977
4043404	Tillage apparatus having improved cutting and drive structure An improved cutting and drive structure is disclosed that is particularly useful in conjunction with tilling apparatus for sod seeding purposes. The structure includes a tillage blade or cutter wheel mounted for rotation by a drive structure that includes...	08/23/1977
3995699	Replaceable insert for agricultural disc A replaceable tool for attachment to the periphery of an agricultural disc is formed of an inverted U-shaped investment casting which can be fitted over the marginal edge portion of the disc to present parallel leading and trailing faces connecting side s...	12/07/1976
3958520	Agricultural machine for tilling the soil A main frame is supported, adjacent its rear end, by a pair of wheels, and the front end of the main frame is arranged for connection to the coupling pin of either a conventional tractor, preferably having a power take-off, or of a separate traction and s...	05/25/1976

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Class 172/120 - Disk or planar cutter (e.g., saw, etc.)