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.
Claims17
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 extending along a circumference of the disc;
- and
- a plurality of step plane notches, each with an edge of uniform depth, in the outer periphery of the disc alternating with a plurality of edge segments extending along the disc circumference, each step plane notch comprising a width and a major section comprising a uniform depth,
- wherein:
- i. each edge segment comprises a width that is greater than the depth of each step plane notch,
- ii. the width of each step plane notch is the same, and
- iii. the uniform depth of the major section is the same for each step plane notch.
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 comprising an outer periphery extending along a circumference of the disc;
- a plurality of step plane notches, each with an edge of uniform depth, disposed in the outer periphery of the disc alternating with a plurality of edge segments extending along the disc circumference, each step plane notch comprising a width and a major section comprising a uniform depth;
- and
- a hub being attached to the disc around the central opening,
- wherein:
- i. each edge segment comprises a width that is greater than the depth of each step plane notch,
- ii. the width of each step plane notch is the same, and
- iii. the uniform depth of the major section is the same for each step plane notch.
A ground engaging agricultural tillage blade apparatus comprising:
- at least two discs, each disc comprising an outer periphery extending along a circumference of the disc and a central opening adapted to be attached to an implement for rotation about a substantially horizontal axis of rotation;
- a plurality of step plane notches, each with an edge of uniform depth, disposed in the outer periphery of each disc alternating with a plurality of edge segments extending along the disc circumference, each step plane notch comprising a width and a major section comprising a uniform depth;
- and
- a spacer spool disposed on a shaft between the at least two discs, the spacer spool extending radially outwardly from a center opening,
- wherein:
- i. each edge segment comprises a width that is greater than the depth of each step plane notch,
- ii. the width of each step plane notch is the same, and
- iii. the uniform depth of the major section is the same for each step plane notch.
Dependencies are inferred from the claim text.