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US 2022/0016746 A1Published application
Blade Sharpener
AssigneePrimedge, Inc.
InventorsIvo Cozzini, Alexander Cozzini
Life of this patent
Estimating the term…
Abstract
A blade sharpener has a frame, first and second rods, a first hub, and a second hub. The first and second rods are adapted and configured to engage a blade to be sharpened. The first hub is operatively connected to the frame and the first rod. The second hub is operatively connected to the frame and the second rod. The first hub being rotatable between an outer position of the first rod relative to the frame and an inner position of the first rod relative to the frame. The second hub being rotatable between an outer position of the second rod relative to the frame and an inner position of the second rod relative to the frame.
Claims34
A blade sharpener comprising:
- a frame having a center axis, the center axis defining a plane, the plane defining opposite first and second sides of the plane;
- first and second rods adapted and configured to engage a blade to be sharpened;
- a first hub being operatively connected to the frame, the first rod being operatively connected to the first hub;
- a second hub being operatively connected to the frame, the second rod being operatively connected to the second hub, the second hub being laterally spaced from the first hub across the center axis;
- the first hub being rotatable between an outer position of the first rod relative to the frame and an inner position of the first rod relative to the frame;
- the second hub being rotatable between an outer position of the second rod relative to the frame and an inner position of the second rod relative to the frame;
- when the first hub is in the outer position, the first rod extends away from the frame and crosses from the first side of the plane to the second side of the plane at an outer distance,
- when the first hub is in the inner position, the first rod extends away from the frame and crosses from the first side of the plane to the second side of the plane at an inner distance, the first rod inner distance being closer to the frame than the first rod outer distance;
- when the second hub is in the outer position, the second rod extends away from the frame and crosses from the second side of the plane to the first side of the plane at an outer distance;
- when the second hub is in the inner position, the second rod extends away from the frame and crosses from the second side of the plane to the first side of the plane at an inner distance, the second rod inner distance being closer to the frame than the second rod outer distance;
- and
- when the first hub is in the outer position and when the second hub is in the outer position, the first and second rods form a general x-shape in plan view.
9 more elements
A method comprising:
- providing a blade sharpener wherein the blade sharpener comprises a frame having a center axis, the center axis defines a plane, the plane defines opposite first and second sides of the plane, the blade sharpener has first and second rods, a first hub being operatively connected to the frame with the first rod being operatively connected to the first hub, a second hub operatively connected to the frame with the second rod being operatively connected to the second hub and the second hub being laterally spaced from the first hub across the center axis, the first hub is rotatable between an outer position of the first rod relative to the frame and an inner position of the first rod relative to the frame, the second hub is rotatable between an outer position of the second rod relative to the frame and an inner position of the second rod relative to the frame, the rods are configured such that when:
- (i) the first hub is in the outer position, the first rod extends away from the frame and crosses from the first side of the plane to the second side of the plane at an outer distance, (ii) the first hub is in the inner position, the first rod extends away from the frame and crosses from the first side of the plane to the second side of the plane at an inner distance, the first rod inner distance being closer to the frame than the first rod outer distance, (iii) the second hub is in the outer position, the second rod extends away from the frame and crosses from the second side of the plane to the first side of the plane at an outer distance, (iv) the second hub is in the inner position, the second rod extends away from the frame and crosses from the second side of the plane to the first side of the plane at an inner distance, the second rod inner distance being closer to the frame than the second rod outer distance;
- and (v) the first hub is in the outer position and when the second hub is in the outer position, the first and second rods form a general x-shape in plan view;
- and
- inserting a blade between the first and second blades with at least one of the hubs in the outer position;
- and
- moving the blade along the rods in a reciprocating fashion in a manner to rotate at least one of the hubs between the inner and outer position of the hub.
4 more elements
Dependencies are inferred from the claim text.