Rotary knife with blade bushing
AssigneeHantover, Inc.
InventorClark A. Levsen
Life of this patent
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Abstract
A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing.
Claims41
A rotary knife driven by a power source, the rotary knife comprising:
- a grasping handle;
- a blade housing mounted to the handle;
- an annular blade operable to be driven by the power source,
- said blade housing presenting an annular inwardly facing housing bearing surface,
- said annular blade presenting an annular outwardly facing blade bearing surface in an opposed relationship with the housing bearing surface;
- and
- an annular bushing received on the bearing surfaces,
- said annular bushing rotatably supporting the blade relative to the blade housing,
- said bushing including an elongated bushing body,
- said bushing body terminating at spaced-apart circumferential ends and presenting a circumferential length defined between the ends.
A replacement blade assembly for a rotary knife driven by a power source, wherein the rotary knife includes a housing that presents an annular inwardly facing housing bearing surface, said replacement blade assembly comprising:
- an annular blade operable to be driven by the power source,
- said blade presenting an annular outwardly facing blade bearing surface configured to be in an opposed relationship with the annular inwardly facing housing bearing surface;
- and
- an annular blade-supporting bushing received on the annular outwardly facing blade bearing surface and configured to be received on the annular inwardly facing housing bearing surface,
- said annular blade-supporting bushing operable to rotatably support the blade relative to the housing,
- said annular blade-supporting bushing including an elongated bushing body,
- said bushing body terminating at spaced-apart circumferential ends and presenting a circumferential length defined between the ends.
Dependencies are inferred from the claim text.