Rotary knife with blade bushing

Details Rotary knife with blade bushing Rotary knife with blade bushing

2007-08-15

2011-10-18

Choi, Stephen (Department: 3724)

Cutlery

Cutting tools

With blade moving means

C030S347000

Reexamination Certificate

active

08037611

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.

REFERENCES:
patent: 3269010 (1966-08-01), Bettcher
patent: 4236531 (1980-12-01), McCullough
patent: 4363170 (1982-12-01), McCullough
patent: 4509261 (1985-04-01), Bettcher
patent: 4734982 (1988-04-01), Khoja
patent: 6615494 (2003-09-01), Long
patent: 6769184 (2004-08-01), Whited
patent: 7131843 (2006-11-01), Tang
patent: 2003/0131482 (2003-07-01), Long et al.
patent: 0974431 (2000-01-01), None
patent: 1864576 (2007-12-01), None
PCT International Search Report and Written Opinion dated Nov. 7, 2008 for corresponding Application No. PCT/US2008/072367 filed Aug. 6, 2008.

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