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US 5,947,360 AGranted
Cutting blade for cutting sheet materials
AssigneeMetal Edge International, Inc.
InventorArmin C. Frank
Life of this patent
Estimating the term…
Abstract
A cutting blade for cutting sheet materials such as plastic film or metal foil is provided. The cutting blade incorporates a row of cutting teeth (50) projecting from a flat surface between the surface's folded edges. The depth of cut of the cutting blade is limited by the height that the cutting teeth project from the flat surface. In addition, by spacing the cutting teeth sufficiently closely together, the cutting teeth provide a bearing surface sufficient to support human skin so that the cutting blade cuts plastic film and metal foil but does not easily puncture human skin.
Claims18
A cutting blade for cutting sheet materials, comprising:
- two spaced-apart parallel longitudinally-elongated edges;
- a substantially flat surface connecting said edges;
- two longitudinal fold lines extending along said edges, said fold lines defining two longitudinally-elongated flanges connected to said edges extending generally perpendicular to said flat surface below said surface to provide a channel shape, wherein each flange has a lower edge;
- and
- a row of teeth spaced from and parallel to said fold lines projecting above said flat surface intermediate said edges in a direction opposite to said flanges and generally parallel thereto, wherein each of said teeth consists of a cutout from said flat surface, formed as a single curved cutting component, adjacent teeth in said row being curved in opposing directions.
2 more elements
A device for cutting sheet materials, comprising:
- a cutting blade, comprising:
- two spaced-apart parallel longitudinally-elongated edges;
- a substantially flat surface connecting said edges;
- a row of longitudinally aligned teeth spaced from and intermediate said edges, each of said teeth being a single substantially triangular cutting component projecting above said flat surface perpendicular to said flat surface;
- and
- a plurality of holes formed in said flat surface adjacent the teeth wherein the number of holes corresponds to the number of teeth;
- and
- a container comprising a front face having a terminal edge extending along the length of the container, wherein the cutting blade is disposed so that the row of teeth is substantially parallel to the terminal edge of the front face.
5 more elements
A cutting blade for cutting sheet materials, comprising:
- two parallel longitudinally-elongated edges;
- a substantially flat surface connecting said edges;
- a row of teeth projecting above said flat surface intermediate said edges, said teeth comprising triangular components having bases disposed in a single line parallel to said edges, each component having an apex forming a single curved cutting component, with adjacent components in said row being curved in opposing directions.
A device for cutting sheet materials, comprising:
- a container for receiving a roll of sheet material having a width, wherein the container has a front face having a terminal edge at least as long as the width of the roll of material;
- a longitudinally-elongated band comprising a planar web surface having two spaced-apart parallel longitudinally elongated edges;
- a row of teeth integrally formed from said band, each of said teeth having a base and a projecting portion extending perpendicularly upwardly from said web surface in a line spaced from and intermediate said edges, wherein the projecting portion of each of said teeth projects approximately 0.015"-0.035" from said base, and said teeth bases are longitudinally aligned and spaced so that there are approximately 12-22 teeth per inch;
- and
- a plurality of holes formed in said planar web surface adjacent the teeth wherein the
- number of holes corresponds to the number of teeth;
- wherein said band is disposed adjacent said terminal edge so that said row of teeth is substantially parallel to said terminal edge.
4 more elements
A device for cutting sheet materials, comprising:
- a cutting blade comprising:
- a longitudinally elongated band extending across substantially the width of the sheet material, comprising a generally planar web surface having two spaced-apart parallel longitudinally elongated edges;
- a row of teeth integrally formed from the band, each of said teeth having a base and a projecting portion extending upwardly from the web surface spaced from said two edges of the band, wherein the teeth bases are longitudinally aligned;
- a plurality of holes formed in said planar web surface adjacent the teeth wherein the number of holes corresponds to the number of teeth;
- and
- a container comprising a front face having a terminal edge extending along the length of the container, wherein the cutting blade is disposed so that the row of teeth is substantially parallel to the terminal edge of the front face.
3 more elements
Dependencies are inferred from the claim text.