Knife sharpener

Details Knife sharpener Knife sharpener

2007-02-06

2007-02-06

Wilson, Lee D. (Department: 3723)

Abrading

Machine

Stationary tool

C451S486000, C451S552000, C076S082000, C076S086000, C076S088000

Reexamination Certificate

active

11509011

ABSTRACT:
A knife sharpener has a housing, a base, a sharpening device and an adjustable device. The housing has a case, a cavity and a slot. The cavity is defined in the case and the slot is defined in the case and communicates with the cavity. The base is mounted on the housing and has a base board and two side walls formed on the base board. The sharpening device is movable mounted on the base and is received inside the housing. The sharpening device has two sharpening arms with sharpening rods. The adjustable device is mounted on the sharpening device mounted between the two sharpening arms. When the knife sharpener is used, the adjustable device is rotated to change the cross-position of the sharpening device. Therefore, a knife may be sharpened at a different site on the sharpening rods for prolonging the life span of the knife sharpener.

REFERENCES:
patent: 4550632 (1985-11-01), Inman
patent: 4672777 (1987-06-01), Dunkin
patent: 5040435 (1991-08-01), Millman
patent: 5461942 (1995-10-01), Kelley
patent: 6875093 (2005-04-01), Friel et al.
patent: 6881137 (2005-04-01), Friel, Sr.
patent: D519815 (2006-05-01), Friel et al.

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