Abstract: A system for separating cut food products includes a flow inlet, a flow outlet, and at least one drum connecting the flow inlet and the flow outlet. The flow inlet may be oriented to direct the cut food product tangentially into the at least one drum. The flow inlet may be oriented to direct the cut food product into the at least one drum at a right angle to a longitudinal axis of the at least one drum. The at least one drum may be a plurality of drums including a first drum having the flow inlet and a second drum having the flow outlet. The system may include a passageway providing fluid communication from the first drum to the second drum. The passageway may include a tapered section. The flow inlet may be aligned with the flow outlet.

Abstract: A system for separating cut food products includes a flow inlet, a flow outlet, and at least one drum connecting the flow inlet and the flow outlet. The flow inlet may be oriented to direct the cut food product tangentially into the at least one drum. The flow inlet may be oriented to direct the cut food product into the at least one drum at a right angle to a longitudinal axis of the at least one drum. The at least one drum may be a plurality of drums including a first drum having the flow inlet and a second drum having the flow outlet. The system may include a passageway providing fluid communication from the first drum to the second drum. The passageway may include a tapered section. The flow inlet may be aligned with the flow outlet.

Abstract: A system for separating cut food products includes a flow inlet, a flow outlet, and at least one drum connecting the flow inlet and the flow outlet. The flow inlet may be oriented to direct the cut food product tangentially into the at least one drum. The flow inlet may be oriented to direct the cut food product into the at least one drum at a right angle to a longitudinal axis of the at least one drum. The at least one drum may be a plurality of drums including a first drum having the flow inlet and a second drum having the flow outlet. The system may include a passageway providing fluid communication from the first drum to the second drum. The passageway may include a tapered section. The flow inlet may be aligned with the flow outlet.

Abstract: A system for separating cut food products includes a flow inlet, a flow outlet, and at least one drum connecting the flow inlet and the flow outlet. The flow inlet may be oriented to direct the cut food product tangentially into the at least one drum. The flow inlet may be oriented to direct the cut food product into the at least one drum at a right angle to a longitudinal axis of the at least one drum. The at least one drum may be a plurality of drums including a first drum having the flow inlet and a second drum having the flow outlet. The system may include a passageway providing fluid communication from the first drum to the second drum. The passageway may include a tapered section. The flow inlet may be aligned with the flow outlet.

Abstract: A flow-propelled rotary knife system includes a housing, having an outlet end and walls defining a fluid passage, a rotatable blade holder, disposed at the outlet end and having a central aperture substantially aligned with the fluid passage, and at least one blade, extending diametrically across the central aperture of the blade holder. The blade holder is configured to rotate about a rotational axis passing through the central aperture, and the at least one blade has a twisted shape selected to rotationally propel the blade and the blade holder to rotate about the rotational axis when the blade is contacted by fluid flowing through the fluid passage and the central aperture in a flow direction, whereby objects propelled along the fluid flow path in the flow direction toward the outlet are helically cut by the rotating blade.

Abstract: A rotary knife fixture for cutting vegetable products such as raw potatoes into spiral shapes. The knife fixture includes a ring-shaped blade holder driven rotatably within a hydraulic product flow path. The blade holder includes at least one cutting blade, wherein the blade is twisted from a generally longitudinally aligned center axis outwardly in opposite circumferential directions with a sharpened leading edge set at a desired pitch angle. By controlling the pitch angle of the blade in relation to the blade rotational speed and velocity at which the potato travels along the hydraulic flow path, the resultant spiral cut shape is selected. By using multiple cutting blades at known axially spaced positions and selecting the angular position of each cutting blade in succession, the number of spiral shapes cut from each potato is selected. The blades can have a nontextured straight-cut edge, or a textured crinkle-cut edge, or a combination.

Abstract: A rotary knife fixture configured for use in a water knife cutting system includes a ring, defining an internal aperture, and at least two spaced, angularly offset, parallel groups of parallel helically twisted cutting blades, extending across the aperture. The ring is configured to be placed in fluid communication with a hydraulic feed conduit of the water knife cutting system and for rotary motion about a rotational axis extending through the aperture. The groups of parallel blades are oriented generally perpendicular to the rotational axis. Each cutting blade has a sharpened cutting edge at one side thereof and is twisted generally about a center point thereof to define a pair of cutting edges oriented in opposite-facing circumferential directions. A vegetable product, fed through the aperture at a product speed, and with the rotary knife fixture rotating at a rotational speed, is substantially simultaneously cut into multiple helically twisted pieces.

Abstract: A rotary knife fixture for cutting vegetable products into spiral shapes. The knife fixture includes a blade holder driven rotatably within a hydraulic product flow path. The blade holder includes at least one cutting blade, wherein the blade is twisted with a sharpened leading edge set at a desired pitch angle. By controlling the pitch angle of the blade in relation to the blade rotational speed and velocity at which the potato travels along the hydraulic flow path, the resultant spiral cut shape is selected. By using multiple cutting blades at known axially spaced positions and selecting the angular position of each cutting blade in succession, the number of spiral shapes cut from each potato is selected. The blades can have a nontextured straight-cut edge, or a textured crinkle-cut edge, or a combination.

Abstract: A flow-propelled rotary knife system includes a housing, having an outlet end and walls defining a fluid passage, a rotatable blade holder, disposed at the outlet end and having a central aperture substantially aligned with the fluid passage, and at least one blade, extending diametrically across the central aperture of the blade holder. The blade holder is configured to rotate about a rotational axis passing through the central aperture, and the at least one blade has a twisted shape selected to rotationally propel the blade and the blade holder to rotate about the rotational axis when the blade is contacted by fluid flowing through the fluid passage and the central aperture in a flow direction, whereby objects propelled along the fluid flow path in the flow direction toward the outlet are helically cut by the rotating blade.

Abstract: A method for packaging a frozen food product includes placing a fluid food product into a flexible container, sealing the container and pasteurizing the food product in the sealed container. The method further includes applying a form to at least one surface of the flexible container, the form embossing the container and creating a series of compartments separated by thin segments therebetween, and freezing the product in the container with the form in place.