Safety knife
First Claim
1. A safety knife comprising a handle, a main blade mounted on the handle with at least a portion of the cutting edge of the blade projecting from the handle, the main blade defining a point, and a guard mounted on the handle to shield the projecting portion and the point of the blade, the guard comprising a further blade which is mounted on the handle in generally the same plane as the main blade and has a cutting edge of at least a part of which is directed towards said projecting portion of the main blade, the further blade being of concavely curved form and defining a tang disposed outwardly beyond the point of the main blade and extending around the point of the main blade.
1 Assignment
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Accused Products
Abstract
A safety knife comprises a handle, a main blade mounted on the handle with a pointed end part of the cutting edge of the blade projecting from the handle at an obtuse angle, and a guard mounted on the handle to shield the projecting portion of the blade. The guard comprises a further blade which is mounted on the handle in generally the same plane as the main blade and has a concavely curved cutting edge which extends around the projecting point of the main blade. The outer edge of the guard blade is unsharpened so that the guard blade protects and shields the point of the main blade as well as contributing to the cutting action of the knife.
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Citations
23 Claims
- 1. A safety knife comprising a handle, a main blade mounted on the handle with at least a portion of the cutting edge of the blade projecting from the handle, the main blade defining a point, and a guard mounted on the handle to shield the projecting portion and the point of the blade, the guard comprising a further blade which is mounted on the handle in generally the same plane as the main blade and has a cutting edge of at least a part of which is directed towards said projecting portion of the main blade, the further blade being of concavely curved form and defining a tang disposed outwardly beyond the point of the main blade and extending around the point of the main blade.
- 20. A safety knife comprising a handle, a main blade mounted on the handle with at least a portion of the cutting edge of the blade projecting from the handle, and a guard mounted on the handle to shield the projecting portion of the blade, the guard comprising a further blade which is mounted on the handle in generally the same plane as the main blade and has a cutting edge at least a part of which is directed towards said projecting portion of the main blade, wherein the further blade is a cutting blade of the kind comprising a central portion having front and back unsharpened edges and two similar hook-shaped portions at opposite ends thereof, each hook portion comprising an inner concave sharpened cutting edge and an outer unsharpened edge.
Specification