Blade housing for low friction rotary knife

Details Blade housing for low friction rotary knife Blade housing for low friction rotary knife

2008-03-11

2008-03-11

Choi, Stephen (Department: 3724)

Cutlery

Cutting tools

With blade moving means

C452S133000

Reexamination Certificate

active

10903057

ABSTRACT:
A power operated knife comprises a blade supporting structure supporting an annular blade for rotation about a central axis. The blade and blade supporting structure are engagable along bearing contact locations that are spaced apart in a direction parallel to the axis so that the blade is stabilized both radially and axially as the knife operates. The blade supporting structure comprises a split blade housing member that is radially expandible and contractible to receive the blade. The split blade housing member and blade engage along relatively short lines of bearing contact that serve to minimize friction and blade heating when the knife operates. The bearing locations are spaced apart both circumferentially around the blade perimeter and in the direction of the axis so that the blade position is stabilized during operation of the knife.

REFERENCES:
patent: 1220345 (1917-03-01), Koster
patent: 1476345 (1923-12-01), McGee
patent: 2266888 (1941-12-01), McCurdy et al.
patent: 2827657 (1958-03-01), Bettcher
patent: RE25947 (1965-12-01), Bettcher
patent: 3269010 (1966-08-01), Bettcher
patent: 4082232 (1978-04-01), Brewer
patent: 4170063 (1979-10-01), Bettcher
patent: 4178683 (1979-12-01), Bettcher
patent: 4198750 (1980-04-01), Bettcher
patent: 4236531 (1980-12-01), McCullough
patent: 4267759 (1981-05-01), Sullivan et al.
patent: 4326361 (1982-04-01), McGill
patent: 4363170 (1982-12-01), McCullough
patent: 4439924 (1984-04-01), Bettcher
patent: 4494311 (1985-01-01), McCullough
patent: 4509261 (1985-04-01), Bettcher
patent: 4516323 (1985-05-01), Bettcher et al.
patent: 4575938 (1986-03-01), McCullough
patent: 4609227 (1986-09-01), Wild et al.
patent: 4637140 (1987-01-01), Bettcher
patent: 4854046 (1989-08-01), Decker et al.
patent: 5331877 (1994-07-01), Ishii
patent: 5522142 (1996-06-01), Whited
patent: 5529532 (1996-06-01), Desrosiers
patent: 5664332 (1997-09-01), Whited et al.
patent: 5692307 (1997-12-01), Whited et al.
patent: 5761817 (1998-06-01), Whited et al.
patent: 5971413 (1999-10-01), El-Kassouf
patent: 1 216 947 (1960-04-01), None

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