# US 10,478,986 B2 · Mandoline slicer

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- Number: US 10,478,986 B2
- Document ID: US10478986B2
- Status: Granted
- Kind: B2
- Application number: 15/730,764
- Filed: 2017-10-12
- Published: 2019-04-18
- Granted: 2019-11-19
- Earliest claimed: 2017-10-12
- Applicants: Masterful Limited
- Inventors: Ali Abdulhusein Ebrahim; Philip A. Spencer
- Web page: https://patentgrep.com/patent/US10478986B2

## CPC

- B26D 3/283: {Household devices therefor}
- B26D 7/2628: {Means for adjusting the position of the cutting member}
- B26D 2003/285: {cutting one single slice at each stroke}
- B26D 2003/287: {having a holder for the product to be cut}
- B26D 2003/288: {making several incisions and cutting cubes or the like, e.g. so-called "julienne-cutter"}
- 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)

## Abstract

A mandoline slicer including a frame having two opposed side walls and a food support surface, a blade assembly, and a slicing thickness adjustment mechanism engaging the blade assembly with the frame and configured to vertically move the blade assembly relative to the food support surface between an operating position where the cutting blade is exposed above the food support surface for a vertical distance for slicing and a resting position where the cutting blade is positioned coplanar with or below the food support surface. The present invention has a fixed and integral food support surface and a movable blade assembly which is easy and safe to operate. It can provide bi-directional food slicing as well as bi-directional julienne blade slicing of food.

## Claims

### Claim 1

A mandoline slicer, comprising:
a frame having two opposed side walls and a food support surface positioned between the two opposed side walls;
a blade opening provided on the food support surface;
a blade assembly which is mounted with a cutting blade thereon and movably received within the frame;
a slicing thickness adjustment mechanism engaging, the blade assembly with the frame and configured to vertically move the blade assembly relative to the food support surface between an operating position where the cutting blade is exposed above the food support surface for a vertical distance for slicing and a resting position where the cutting blade is positioned coplanar with or below the food support surface;
the blade assembly is spring-loaded by springs disposed on a top side of the blade assembly and abutting against the food support surface to bias the blade assembly away from the food support surface when the blade assembly is in the resting position;
the blade assembly comprises two opposed blade assembly side walls and a blade seat positioned between the two opposed blade assembly side walls for receiving the cutting blade, and each of the two opposed blade assembly side walls has a corresponding notch at a lower side thereof; the slicing thickness adjustment mechanism comprises a blade assembly axle which passes through two corresponding blade assembly axle openings at the two side walls so that each of a first end and a second end of the blade assembly axle protrudes outward from the corresponding side wall and connects to a knob rotatably mounted at the corresponding side wall; an eccentric cam is provided near each of the first and the second end of the blade assembly axle, wherein the eccentric cams are configured to abut against the notches so as to overcome the spring biasing force exerted to the blade assembly and move the blade assembly.

### Claim 2 (depends on 1)

The mandoline slicer as in claim 1, wherein the vertical distance between the cutting blade and the food support surface is adjustable by the slicing thickness adjustment mechanism.

### Claim 3 (depends on 1)

The mandoline slicer as in claim 1, wherein the blade assembly axle has a cross section in shape of a square; each of the eccentric cams has a quadrilateral cross section so that rotation of the knobs causes rotation of the eccentric cams to move the blade assembly among a first operating position where a first side of each of the eccentric cams abuts against the corresponding notch and the cutting blade is exposed above the food support surface for a first vertical distance, a second operating position where a second side of each of the eccentric cams abuts against the corresponding notch and the cutting blade is exposed above the food support surface for a second vertical distance, a third operating position where a third side of each of the eccentric cams abuts against the corresponding notch and the cutting blade is exposed above the food support surface for a third vertical distance, and the resting position where a fourth side of each of the eccentric cams abuts against the corresponding notch.

### Claim 4 (depends on 1)

The mandoline slicer as in claim 1, wherein the cutting blade has one or two longitudinal cutting edges for uni-directional or bi-directional food slicing.