Cutlery implement with continuous longitudinal ridge

Patent metadata

Field	Value
Publication number	US-11407129-B2
Application number	US-201916664052-A
Country	US
Kind code	B2
Filing date	Oct 25, 2019
Priority date	Nov 2, 2018
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

A cutlery implement or cutting instrument having a blade with opposed side surfaces, a knife edge extending along one terminal edge of the blade, and a narrow continuous longitudinally extending ridge of either hemispherical cross-sectional shape or rectangular cross-sectional shape extending along a pre-determined length of the knife edge at a pre-determined continuous spaced distance from the knife edge. The rectangular cross-sectional shape includes fillets on each opposite side thereof for providing a smooth transition to the blade surface. The narrow longitudinally extending ridge protrudes from at least one or both of the opposed side surfaces of the blade.

First claim

What is claimed is:

1. A cutlery implement comprising:
a blade having opposed side surfaces, a knife edge along one terminal edge portion of the blade, and a top edge opposite the knife edge;
a bolster; and
a continuous longitudinally extending ridge on each of the opposed side surfaces of said blade, each said continuous longitudinally extending ridge extending along a pre-determined length of the knife edge and being spaced at a constant pre-determined distance from the knife edge along the pre-determined length of the knife edge, wherein each continuous longitudinally extending ridge is located at a distance of about 10 mm from the knife edge along the length of the blade;
wherein each continuous longitudinally extending ridge abuts and extends from the bolster to a location adjacent to but not abutting a tip of the blade;
wherein each continuous longitudinally extending ridge is of a hemispherical cross-sectional shape;
wherein a maximum thickness of each continuous longitudinal ridge is 1.8 mm+/−0.3 mm measured from side to side at the blade surface;
wherein an elevation of each ridge relative to the blade surface is 0.4 mm+/−0.1 mm; and
wherein the bolster extends from the knife edge of the blade to the top edge of the blade.

2. The cutlery implement defined in claim 1 wherein the continuous longitudinally extending ridge has opposed end portions, each opposed end portion tapering into the blade surface.

3. The cutlery implement defined in claim 1 wherein the elevation of the ridge relative to the blade surface is 0.35 mm+/−0.05 mm.

4. A cutlery implement comprising:
a blade having opposed side surfaces, a knife edge along one terminal edge portion of the blade, and a top edge opposite the knife edge;
a continuous longitudinally extending ridge on at least one of the opposed side surfaces of said blade, said continuous longitudinally extending ridge extending along a pre-determined length of the knife edge, wherein the continuous longitudinally extending ridge is located at a distance of about 10 mm from the knife edge along the length of the blade;
wherein the cutlery implement includes a bolster, and the continuous longitudinally extending ridge abuts and extends from the bolster to a location in the vicinity of a tip of the blade;
wherein the continuous longitudinally extending ridge is of a hemispherical cross-sectional shape;
wherein the continuous longitudinally extending ridge extends along a pre-determined length of the knife edge and is spaced at a constant pre-determined distance from the knife edge along the pre-determined length of the knife edge; and wherein the bolster extends from the knife edge of the blade to the top edge of the blade;
wherein the continuous longitudinally extending ridge abuts and extends from the bolster to a location adjacent to but not abutting a tip of the blade.

5. The cutlery implement defined in claim 4 including a continuous longitudinally extending ridge located on both opposed side surfaces of the blade.

Assignees

• Sunbeam Products Inc

Inventors

• Betancourt Jose A
• Johnson Matthew Allen
• Frumoff Adam

Classifications

• B26B9/00 Primary

  Blades for hand knives · CPC title

• B26B3/00 Primary

  Hand knives with fixed blades {(handles, attaching the handles B25G)} · CPC title

• B25G1/102

  the shape being specially adapted to facilitate handling or improve grip · CPC title