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US 5,241,883 AGranted
Method of manufacturing a knife blade
AssigneeSeb S.A.
InventorMichel Coppier
Life of this patent
Estimating the term…
Abstract
The method of manufacturing the knife blade (1), comprises the following steps: by stamping the two faces (1a, 1b) of a blade blank (1), a series of protuberances (2, 3) are formed, extending transversely to the length of the blade and, during the same stamping operation, a chamfer is formed on one of the longitudinal edges of the blade, after which, said edge (5) of the blade opposite the chamfer is sharpened. Use especially in order to avoid the blade sticking when cutting food.
Claims8
A method of manufacturing a knife blade, comprising the following steps:
- by stamping the two faces (1a, 1b) of a blade blank (1), a series of protuberances (2, 3) are formed, extending transversely to the length of the blade and, during the same stamping operation,
- parallel to one of the longitudinal edges of the blade, on both faces of the latter, two protruding ridges (6, 7) are formed, arranged in the extension of the vertex of the protuberances (2, 3) and a chamfer (4) is formed, at least between one of these ridges (6, 7) and the longitudinal edge of the blade, after which,
- said edge of the blade is sharpened.
Dependencies are inferred from the claim text.