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US 5,469,902 AGranted
Chipper knife and knife holder assembly
AssigneeAmerican Knife, Inc.
InventorsGary A. Sharp, Jan-Erik Jonsson
Life of this patent
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AssigneeAmerican Knife, Inc.
InventorsGary A. Sharp, Jan-Erik Jonsson
Estimating the term…
A chopper has a straight knife clamped between a clamping member and a counter knife. The knife, clamping member, and counter knife are collectively positioned in a machined area formed in a holder that is in turn fitted within a larger recess formed in a chopping disk. A first fastener secures the knife holder to the chopping disk, a second fastener secures the clamping member to the knife holder, and a third fastener secures the counter knife to the knife holder. A projection formed in the counter knife engages a groove formed in the knife to properly align the knife and to inhibit entry of fibers into the space between the counter knife and the knife. The holder further includes a series of steps that position the counter knife and the clamping member, respectively, with respect to the holder.
A chipper knife, comprising:
The knife of claim 2, wherein said first and second grooves each have transversely extending bevelled sidewalls disposed at a substantially forty five degree angle with respect to said first and second clamping surfaces.
A counter knife mounted atop a counter knife holder, comprising:
A holder for holding a counter knife and a clamp, comprising:
A clamp for clamping a knife in sandwiched relation between said clamp and a counter knife, said knife having a first clamping surface abutting said clamp and a second clamping surface abutting said counter knife, said first and second clamping surfaces of said knife having a predetermined longitudinal extent and a predetermined transverse extent, comprising:
Dependencies are inferred from the claim text.