# US 2009/0260236 A1 · Knife of a blender

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- Number: US 2009/0260236 A1
- Document ID: US20090260236A1
- Status: Published application
- Kind: A1
- Application number: 12/103,715
- Filed: 2008-04-16
- Published: 2009-10-22
- Earliest claimed: 2008-04-16
- Inventors: Kuan-Chih LIN
- Web page: https://patentgrep.com/patent/US20090260236A1

## CPC

- A47J 43/0722: {Mixing, whipping or cutting tools}
- B26D 1/0006: {Cutting members therefor}
- B26D 1/28: and rotating continuously in one direction during cutting
- B26D 2001/006: {the cutting blade having a special shape, e.g. a special outline, serrations}
- B26D 2001/0066: {having shearing means, e.g. shearing blades, abutting blades}
- Y10T 83/222: With receptacle or support for cut product
- A47J: KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- B26D: CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING (for growing crops or plants A01D, A01G; for fodder or straw A01F; for bulk butter A01J; for dough A21C; slaughtering A22B; for tobacco, cigars or cigarettes A24; marking-out, perforating or making buttonholes A41H25/00; manufacturing footwear A43D; brushmaking A46D; surgery A61B; disintegrating, mincing or shredding in general B02C; cutting wire, making pins or nails B21F, B21G; of the kind used formetal B23; cutting by abrasive fluid jets B24C5/02; hand-held cutting tools B26B; perforating, cutting-out, stamping-out or punching, or severing by means other than cutting B26F; for wood B27; for stone B28D; working of plastics or substances in a plastic state B29; making boxes, cartons, envelopes or bags, of paper or similarly worked materials, e.g. metal foil, B31B; article or web delivery apparatus incorporating cutting or line-perforating devices B65H35/00; for leather or upholstery B68, C14B; for glass C03B; making matches C06F; for peat C10F; for sugar C13B45/00; for textile materials D06H; civil engineering, building, mining, see Section E; for light guides G02B6/25; cutting processed photographic material G03D15/04)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

This invention relates to a knife of a blender that includes a container, the knife fixed on a bottom of the container, and a base located under the container. The knife is provided with an upper blade having its ends inclined upward, a lower blade having its two ends inclined downward, and a shearing blade installed between the upper blade and the lower blade. Each of the upper blade and the lower blade has a shear edge used as a cutting means. The shearing blade is shaped similar to “S”, provided with two shearing edges symmetrically formed on two end portions, and a plurality of teeth formed along each of the shearing edges with diverse depth. By means of the knife, frozen or semi-frozen fruits can be finely crushed quickly, and fruits and vegetables can be completely blended into juice.

## Claims

### Claim 1

A knife of a blender that includes a container, said knife fixed on a bottom of said container, a base located under said container, said knife provided with an upper blade and a lower blade and a shearing blade, each of said upper blade and said lower blade and said shearing blade provided with a shearing edge used as a cutting means, said upper blade having its two end portions inclined upward, said lower blade having its two end portions inclined downward; and
said knife characterized by that said shearing blade is installed between said upper blade and said lower blade, said shearing blade provided with two shearing edges symmetrically formed on two end portions, a plurality of teeth formed along each of said shearing edges with diverse depth.

### Claim 2 (depends on 1)

The knife of a blender as claimed in claim 1, wherein said shearing blade has said teeth and said shearing edges formed under its edge.

### Claim 3 (depends on 1)

The knife of a blender as claimed in claim 1, wherein said shearing blade is shaped similar to “S”.