The food comminution device includes a cutting part (3), a spiral cutting part (6) and a rotary drive (5), wherein food items (4) for comminution can, in order to be comminuted, be selectively pushed through the cutting part (3) or rotated by means of the rotary drive relative to a spiral cutting part (6). The food comminution device further includes an actuating part (1) and a base part (2) which has a cutting part (3), wherein the actuating part (1) is movably connectable to the base part (2) such that food items (4) for comminution can be pushed through the cutting part (3) by means of a movement of the actuating part (1) relative to the base part (2). The actuating part (1) has a rotary drive by means of which a food item (4) for comminution can be rotated relative to a spiral cutting part (6).

A helicoidal blade system is presented having an armature to facilitate bending of metal stock to form helicoidal blades. In one or more embodiments, the armature has an exterior surface that is generally conical in shape and includes a guide structure and an engagement track. The helicoidal blade system also includes drive coupler and motor that are operably coupled together. The drive coupler is configured to engage the engagement track of the conical armature and rotate the conical armature when the motor is operated. A blade metal feed apparatus is configured to feed the metal stock into the helical shaped guide structure as the conical armature is rotated. As the conical armature is rotated, the metal stock is bent around the armature within the helical shaped guide structure to form one or more helicoidal blades.

A method where a propeller is set into locomotion relative to a medium at least partially surrounding the propeller. An actuator induces a rotation of the propeller relative to the medium and about a rotational axis of the propeller, and the propeller converts its rotational movement into locomotion relative to the medium. The aspect ratio of at least one cross-section of the propeller is three or more. Also a helical or modifiedly helical propeller for converting rotational movement of the propeller into locomotion of the propeller relative to a medium at least partially surrounding the propeller, where the aspect ratio of at least one cross section of the propeller is three or more. And a method of producing a propeller, including the step of providing a plate extending along the helical axis, where the aspect ratio of at least one cross section of the plate is three or more.

A vegetable knife includes a pulverizing coring pin for pulverizing a core of a vegetable, where the pulverizing coring pin can be a generally cylindrical tube. The pulverizing coring pin can define one or more pulverizing tubes that extend from a first end of the pulverizing coring pin to a second end of the pulverizing coring pin opposite the first end. The vegetable knife also includes at least one vegetable shaping blade that extends radially outwardly from the pulverizing coring pin, where the at least one vegetable shaping blade supports the pulverizing coring pin at a location generally central with respect to the vegetable knife. The vegetable knife may also include an outer flange for coupling the vegetable knife to a rotatable cutting assembly. The vegetable shaping blade can be connected between the outer flange and the pulverizing coring pin for supporting the pulverizing coring pin.

A method where a propeller is set into locomotion relative to a medium at least partially surrounding the propeller. An actuator induces a rotation of the propeller relative to the medium and about a rotational axis of the propeller, and the propeller converts its rotational movement into locomotion relative to the medium. The aspect ratio of at least one cross-section of the propeller is three or more. Also a helical or modifiedly helical propeller for converting rotational movement of the propeller into locomotion of the propeller relative to a medium at least partially surrounding the propeller, where the aspect ratio of at least one cross section of the propeller is three or more. And a method of producing a propeller, including the step of providing a plate extending along the helical axis, where the aspect ratio of at least one cross section of the plate is three or more.

A device (1) for processing foods includes a container (2) containing a dividing element (3, 4) for cutting through a food in order to produce a strip-shaped, spiral cut material, a housing (5) for accommodating the container (2), and a supporting element (6) for supporting the food, wherein the container (2) is rotatable in the housing (5). An intermediate space (7) is provided between the supporting element (6) and the dividing element (3, 4) in order to clamp the food, wherein the dividing element (3, 4) for cutting through the food is connected to the container (2), and therefore the cut material can be produced by the dividing element (3, 4) by a rotational movement of the container (2) and can be guided into an interior space (24) of the container (2).

Existing blade assemblies for cutting complex three-dimensional shapes such as twisted shapes are typically slow and suffer from frequent breakdowns. Disclosed herein is a stationary blade assembly for cutting food products into complex shapes as the food products are directed along a direction of flow at the blade assembly, wherein the blade assembly comprises a plurality of blades, each of the plurality of blades having a length, wherein the length of the blade is oriented along the direction of flow and the blade is twisted along its length, whereby the food products are rotated by the blade during cutting.

A food processing apparatus for the cutting of foodstuff comprising a first cutter having a cross/sectional shape defining a first maximal external diameter and a first minimal internal diameter about a first central axis. A second cutter having a cross-sectional shape defining a second maximal external diameter and a second minimal internal diameter about a second central axis is also provided. The second maximal external diameter of the second cutter is greater than or equal to the first minimal internal diameter of the first cutter. In use, the foodstuff is cut by the second cutter before being cut by the first cutter, or alternatively the first cutter may make the first cut with the second cutter making a second subsequent cut.

A cutting apparatus and a method for chamfering a film stack using the cutting apparatus. The chamfering method reduces microcracks generated in the film stack during curved surface chamfering, reduces the maximum stress applied to the film stack, prevents lifting, and enables processing of a curved surface.

Size-reduction units, size-reduction machines, and methods capable of producing size-reduced products from a variety of solid and semisolid materials. A size-reduction unit includes a circular cutter adapted and arranged to cut a product into strips, a rotating cross-cutter adapted and arranged to receive the strips from the circular cutter, and a stripper plate. The cross-cutter has knives with cutting edges that are adapted and arranged to cut the strips into a size-reduced product, and the stripper plate defines a shear edge in proximity to the cutting edge of each knife of the cross-cutter as its cutting edge encounter the shear edge during rotation of the cross-cutter. The cross-cutter has a helical fluted shape comprising flutes between adjacent pairs of the knives.