Agricultural drill/planter/coulter/disc blade with step plane notch edge
AssigneeOsmundson Mfg. Co.
InventorDouglas G. Bruce
Life of this patent
Estimating the term…
Abstract
A ground engaging agricultural blade, coulter, or disc having a central opening adapted to be attached to an implement for rotation about a substantially horizontal axis of rotation; the coulter or disc have an outer periphery; and plurality of step plane notches disposed in the outer periphery. The blade can be used with a hub disposed around the central opening or a spacer spool on a shaft extending through the central openings of adjacent blades, the spacer spools extending radially outwardly by a distance.
Claims23
A ground engaging agricultural tillage blade comprising:
- a disc having a central opening adapted to be attached to an implement for rotation about an axis of rotation;
- the disc having an outer periphery;
- and
- a plurality of step plane notches in the disc from a location substantially at the outer periphery to the central opening.
A ground engaging agricultural tillage blade apparatus comprising:
- a disc having a central opening adapted to be attached to an implement for rotation about an axis of rotation;
- the disc having an outer periphery;
- a plurality of step plane notches in the disc from a location substantially at the outer periphery to the central opening;
- and
- a hub being attached to the disc around the central opening.
A ground engaging agricultural tillage blade apparatus comprising:
- at least two discs, each having a central opening adapted to be attached to an implement for rotation about a substantially horizontal axis of rotation;
- each disc having an outer periphery;
- and
- a plurality of step plane notches in each disc from a location substantially at the outer periphery to the central opening;
- and
- wherein a spacer spool is disposed on a shaft between the at least two discs, the spacer spool extending radially outwardly from the center opening.
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Dependencies are inferred from the claim text.