Section Knife
AssigneeAlamo Group Inc.
InventorsMark Alan Collins, Harry C. Deckler, JR.
Life of this patent
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Abstract
A method of manufacturing a section is formed from a blank having the perimeter of a truncated generally isosceles triangle. Each angled side of the truncated generally isosceles triangle includes a plurality of substantially semi-circular channels. The long axis of each substantially semi-circular channel is substantially parallel to the base of the truncated generally isosceles triangle. The top of the substantially semi-circular channel intersects the front surface of the section knife. The bottom of the substantially semi-circular channel intersects the back surface of the section knife. A cutting edge is formed at the intersection of the substantially semi-circular channel and the back surface of the section knife.
Claims9
A section knife made according to a process comprising:
- forming a metal blank having a back surface and a front surface and a perimeter in the form of a truncated generally isosceles triangle, said truncated isosceles triangle having a thickened base and angled sides;
- engaging said angled sides with a forming tool to create substantially semi-circular channels, said substantially semi-circular channels being oriented substantially parallel to said thickened base , said substantially semi-circular channels running from said back surface to said front surface.
The section knife made according to the process defined in claim 11 further including grinding said back surface to form a cutting edge at the intersection of said substantially semi-circular channel and said back surface.
The section knife made according to the process defined in claim 11 wherein said angled edges contain from about three substantially semi-circular channels per inch to about twelve substantially semi-circular channels per inch.
The section knife made according to the process defined in claim 11 wherein all or a portion of the outer surface of said section knife is coated with another metal.
A section knife made according to a process comprising:
- forming a metal blank having a back surface and a front surface and a perimeter in the form of a truncated generally isosceles triangle, said truncated isosceles triangle having a thickened base and angled sides;
- engaging said angled sides with a cutting tool to create substantially semi-circular channels, said substantially circular channels being oriented substantially parallel to said thickened base, said substantially semi-circular channels running from said front surface to said back surface.
The section knife made according to the process defined in claim 15 further including grinding said back surface to form a cutting edge at the intersection of said substantially semi-circular channel and said back surface.
The section knife made according to the process defined in claim 15 wherein said angled sides contain from about three substantially semi-circular channels per inch to about twelve substantially semi-circular channels per inch.
The section knife made according to the process defined in claim 15 wherein all or a portion of the outer surface of the section knife is coated with another metal.
A section knife made according to a process comprising:
- forming a metal blank having a front surface and a back surface and the perimeter of a truncated generally isosceles triangle, said truncated isosceles triangle having a thickened base and angled sides, said angled sides further including substantially semi-circular channels oriented substantially parallel to said thickened base, said substantially semi-circular channels running from said front surface to said back surface;
- grinding said back surface of said formed metal blank to form a sharpened surface at the intersection of said substantially semi-circular channel and said back surface.
Dependencies are inferred from the claim text.