Knife sharpener
AssigneeGB II Corporation dba Columbia River Knife & Tool Company
InventorsSteven McCowen, Charles Kain
Life of this patent
Estimating the term…
Abstract
The present disclosure concerns embodiments of an improved knife sharpener. In particular embodiments, the knife sharpener has an elongated sharpening member, which can be, for example, an abrasive sharpening rod. The sharpening rod can be made of any of various suitable materials, such as ceramic, porcelain, stone, diamond. The sharpening member extends through a sharpening guide, which is movable in both directions along the length of the sharpening member. The sharpening guide defines at least one guide slot for receiving a knife blade to be sharpened. The guide slot is configured to position a facet of the knife blade in sliding contact with the sharpening member and at a predetermined angle with respect to the sharpening member.
Claims30
An apparatus for sharpening a blade of a knife, comprising:
- an elongated sharpening member defining a sharpening surface;
- and
- a sharpening guide coupled to the sharpening member and being movable longitudinally relative to the sharpening member, the sharpening guide having a slot for receiving the blade, the slot configured to position the blade at an acute angle with respect to the sharpener surface and such that at least a portion of the blade can contact the sharpening surface, wherein when the blade can move laterally in the slot and the sharpening guide can move longitudinally relative to the sharpening member, the blade can slidably contact the sharpening surface as it is moved laterally and longitudinally across the sharpening surface.
An apparatus for sharpening the blade of a knife, comprising:
- an elongated sharpening member defining a sharpening surface and a longitudinal axis;
- and
- a sharpening guide coupled to the sharpening member and comprising a guide slot configured to align the blade such that at least a portion of the blade can make sliding contact with the sharpening surface at an acute angle relative to the longitudinal axis when the blade is placed in the guide slot.
An apparatus for sharpening the blade of a knife, comprising:
- a sharpening rod;
- and
- guide means for maintaining the blade at a predetermined, acute angle with respect to the sharpening rod as a user moves the blade across the sharpening rod.
A method for sharpening the blade of a knife, comprising moving the blade through a blade guide that maintains the blade in sliding contact with a sharpening rod and at a predetermined, acute angle with respect to the sharpening rod.
A method for sharpening the blade of a knife, comprising sliding the blade in a first direction through a sharpening guide and against an abrasive surface while simultaneously moving the sharpening guide and the blade in a second direction, perpendicular to the first direction, relative to the abrasive surface.
Dependencies are inferred from the claim text.