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US 4,907,344 AGranted
Knives
AssigneeRichardson Sheffield Limited
InventorJerome S. Hahn
Life of this patent
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AssigneeRichardson Sheffield Limited
InventorJerome S. Hahn
Estimating the term…
The invention relates to knives and in particular the knives of the type of construction described and claimed in British Patent No. 2,108,887, where the blade has a V-shaped cutting edge centrally located on a parallel sided blank with the edge flat ground to one side and ground with formulations such as serrations or serrations and scallops. The object of the invention is to improve such knives by increasing the strength at the cutting edge, which objective is met by a construction where along that side of the V-shaped cutting edge provided with formulations a number of interruptions are provided in spaced relationship along the length of the cutting edge to assist cutting action, and interruptions to said formations being provided in spaced relationship along the length of the cutting edge to group said formulations into discrete lengths, and said interruptions being such as to maintain a continuous cutting edge along the length of the blade.
A knife comprising a blade in the form of a parallel sided blank, a centrally located V-shaped cutting edge on said blank having a first side that is flat ground, formulations being ground into a second side of said v-shaped cutting edge to assist cutting action, and interruptions to said formulations being provided in spaced relationship along the length of the cutting edge to group said formulations into discrete lengths the groups of formations being of greater length than the interruptions, and said interruptions each having a cutting edge and being such as to maintain a continuous cutting edge along the length of the blade.
Dependencies are inferred from the claim text.