The present invention relates to an apparatus for removing an exterior surface from a plurality of bodies having an exterior surface such as, for example, but not by way of limitation, a skin, a peel, a husk, a sheath or a hide. More specifically, the present invention relates to a floodable peeling vessel for enabling the removed exterior surface to be washed from the equipment within which the exterior surface is removed and, optionally, to be conveniently carried in a stream of a fluid that is discharged from the vessel to a downstream collector.
Certain foodstuffs are in the form of bodies. Some of these foodstuffs are fruits and vegetables such as, for example, potatoes, apples or oranges. Some of these foodstuffs can be skinned or peeled and the skinned or peeled plurality of bodies can then be used to prepare foods that are then packaged and sold to consumers. A variety of different methods are currently used to remove some or all of the exterior surface from a body. Some hand-held implements may be used for this purpose such as, for example, a potato peeler or a knife. Some of these implements require a large amount of labor and time to use.
One embodiment of the floodable peeling vessel of the present invention comprises a vessel having a first end, a second end with an outlet, an interior cavity intermediate the first end and the second end, and an interior wall surrounding the interior cavity with at least a portion of the interior cavity having a rounded or circular cross-section and a center axis extending therethrough, a plurality of peeling members supported within the interior cavity and proximal to the interior wall, an inlet coupled to the vessel to introduce an inlet stream having an inlet direction that is directed off-center relative to the center axis of the interior cavity of the vessel, the inlet being proximal to the first end of the vessel and an outlet proximal to the second end of the vessel, wherein introducing a stream of a fluid through the inlet and into the interior cavity of the vessel fills the interior cavity from the inlet to the outlet and produces a spinning vortex of the fluid about the center axis and within the at least a portion of the interior cavity and wherein introducing a plurality of bodies with exterior surfaces into the interior cavity while continuing to introduce the stream of the fluid through the inlet causes the plurality of bodies to be accelerated in a spiraling pathway about the center axis by the spinning vortex and causes the plurality of bodies to engage the interior wall and at least some of the plurality of peeling members.
In one embodiment of the floodable peeling vessel of the present invention, the center axis is vertical. One embodiment of the floodable peeling vessel of the present invention further comprises a body chute fluidically coupled to the vessel and through which the plurality of bodies can be introduced into the interior cavity. One embodiment of the floodable peeling vessel of the present invention includes a chute having a discharge end that is proximal to the first end of the vessel to introduce a stream of a plurality of bodies into the vessel proximal to the first end. In that embodiment, the residence time is maximized or prolonged so that, as the bodies are propelled along the pathway, the bodies encounter a greater number of peeling members prior to arriving at the outlet.
One embodiment of the floodable peeling vessel of the present invention includes a plurality of peeling members that are supported on a liner that is removably receivable within the interior cavity and positioned on the liner to engage bodies as they are propelled through the pathway by the stream of fluid introduced at the inlet. In one embodiment of the floodable peeling vessel of the present invention, the plurality of peeling members comprise the edges of a plurality of apertures, holes or perforations in the liner. In another embodiment of the floodable peeling vessel of the present invention, the plurality of peeling members are connected to and supported on the interior wall of the interior cavity.
One embodiment of the floodable peeling vessel of the present invention includes a strategically positioned spill trough disposed proximal to the outlet from the vessel and proximal to the second end of the vessel to receive from the vessel the plurality of bodies emerging from the vessel, the fluid, and a plurality of pieces of the exterior surface that have been removed from the bodies. In one embodiment of the floodable peeling vessel of the present invention, the spill trough has a first portion to receive the plurality of bodies, the fluid and the pieces, and a second portion to discharge at least one of the bodies, the fluid and the pieces. For example, but not by way of limitation, the second portion of the spill trough may include a trough with drain holes to allow the fluid phase and at least some of the pieces from the spill trough while continuing to move the bodies, less the exterior surfaces, to another location.
In one embodiment of the floodable peeling vessel of the present invention, the inlet is coupled to the vessel to introduce the inlet stream having a direction that is tangential to the center axis and proximal to the interior wall of the vessel. In one embodiment of the floodable peeling vessel of the present invention, the inlet is strategically coupled to the vessel at a location and at an angle to introduce a stream of fluid into the vessel to tangentially impinge on the interior wall of the interior cavity of the vessel. Tangential impingement, as that term is used herein, means that the stream of fluid emerging from the inlet and introduced into the interior cavity of the vessel is directed so as to be gradually redirected by the interior wall along the interior wall and to maintain flow speed with gradual change in direction. This manner of introduction of the stream of fluid has a great impact on the sustainability of the spiraling flow along the pathway and, as a result, on the propulsion of the bodies along the pathway to engage the peeling members supported within the interior cavity of the vessel. Embodiments of the floodable peeling apparatus of the present invention utilize a spiraling vortex pathway that moves the bodies about the center axis of the interior cavity of the vessel from the first end to the outlet proximal to the second end. Embodiments of this type provide optimal utilization of the plurality of distributed peeling members supported within the interior cavity. Embodiments of the floodable peeling apparatus of the present invention may utilize a spiraling vortex pathway that spins about a vertical center axis, a horizontal center axis or an inclined center axis. Strategic selection of the orientation of the center axis should be made based on factors including the density of the bodies from which the exterior surface is to be removed. Embodiments of the floodable peeling apparatus of the present invention may include an inclined or vertical center axis in which the first end is disposed lower than the second end, and other embodiments of the floodable peeling apparatus of the present invention may include a declined or vertical center axis in which the first end is disposed higher than the second end. Bodies having a density that is greater than that of the fluid of which the stream of fluid is comprised may be introduced into an embodiment of the floodable peeling apparatus having an inclined or vertical center axis with the first end disposed lower than the second end to increase the residence time of the bodies. Alternately, bodies having a density that is less than that of the fluid of which the stream of fluid is comprised may be introduced into an embodiment of the floodable peeling apparatus having a declined or vertical center axis with the first end disposed higher than the second end to increase the residence time of the bodies. Similarly, strategic selection of the fluid can be used to influence the residence time of bodies of a known density.
Embodiments of the floodable peeling apparatus of the present invention may perform differently depending on, among other factors, the dimensions of the interior cavity of the vessel of the apparatus and the velocity and the volumetric rate with which the stream of fluid is introduced into the interior cavity through the inlet. The orientation of the center axis, the specific gravity of the fluid and the density of the bodies from which pieces of peeling are to be removed also affect the performance of the apparatus. The volumetric rate at which a stream of fluid is introduced into the interior cavity of the vessel of an embodiment of the apparatus having an interior cavity of given dimensions may be optimized for best performance. A spin rate of the spiraling vortex created by the off-center (relative to a plane orthogonal to a center axis) introduction of a stream of fluid of a given specific gravity will in part determine the velocity with which the bodies that become entrained in the flow will engage the peeling members that are supported within the interior cavity of the vessel. The volumetric rate at which the stream of fluid is introduced into the interior cavity of the vessel of the apparatus, the specific gravity of the fluid, the density of the bodies and the dimensions of the interior cavity will impact the rate at which entrained bodies will move from the first end of the vessel to the second end of the vessel. These factors will produce a residence time for the bodies that reflects the duration with which a body will typically remain within the spiraling vortex pathway intermediate the first end and the second end of the vessel.
An insufficient flow velocity component along the center axis about which the spiraling vortex pathway spins may cause bodies to either remain in the vessel for an excessive amount of time, resulting in the loss of more than just the exterior peel of the bodies due to an unwanted duration of engagement with the plurality of peeling members, or it may cause the bodies to sink out of the spiraling vortex pathway due to having a density that is excessively greater than that of the fluid. An excessive flow velocity component along the center axis about which the spiraling vortex pathway spins may cause bodies to remain within the interior cavity of the vessel of the apparatus for an insufficient amount of time and to be discharged from the second end of the vessel before a sufficient amount of the exterior peel is removed by engagement with the plurality of peeling members supported within the interior cavity of the vessel.
Some embodiments of the floodable peeling apparatus of the present invention may be used for continuously receiving and peeling a plurality of bodies. The bodies may be continuously introduced into the first end of the interior cavity of the vessel of the apparatus by way of, for example, a body chute, and peeled bodies may be continuously discharged from the second end of the interior cavity of the vessel of the apparatus. Other embodiments of the floodable peeling apparatus of the present invention may be used for receiving and peeling a batch comprising a plurality of bodies. The plurality of bodies, or batch of bodies, may be introduced into the interior cavity of the vessel of the apparatus and peeled bodies may be discharged from the second end until all of the plurality of bodies are peeled, and then the apparatus may be reset for receiving a successive batch.
In some embodiments of the floodable peeling apparatus of the present invention in which the spiraling vortex pathway surrounds a center axis that is vertical, the first end of the interior cavity of the vessel of the apparatus at which the inlet is disposed may be vertically beneath the second end at which peeled bodies and the stream of fluid, with pieces of peels removed from the bodies are entrained therein, may be discharged from the interior cavity of vessel. In other embodiments of the floodable peeling apparatus of the present invention in which the spiraling vortex pathway surrounds a center axis that is vertical, the first end of the interior cavity of the vessel of the apparatus at which the inlet is disposed may be vertically above the second end at which peeled bodies and the stream of fluid, with pieces of peels removed from the bodies entrained therein, may be discharged from the interior cavity of the vessel. These embodiments may be optimized to adjust for the relative density of the plurality of bodies compared to the specific gravity of the stream of fluid. For example, but not by way of limitation, buoyant bodies, which are bodies having a density that is less than the density of the stream of fluid, will require a greater downwardly velocity component of the spiraling vortex pathway to move the bodies downwardly along the center axis about which the spiraling vortex pathway spins than will non-buoyant bodies. The denser the plurality of bodies, a lesser downwardly velocity component of the spiraling vortex pathway may be used because the denser plurality of bodies may utilize the natural sinking action of the plurality of bodies to move the bodies from the first end to the second end of the interior cavity of the vessel of the apparatus. Turning back to the example of an interior cavity having a vertical center axis and the inlet at the first end of the interior cavity of the vessel disposed vertically beneath the outlet proximal to the second end of the interior cavity of the vessel, bodies that are denser than the stream of fluid will require an upward component of velocity of the stream of fluid that is sufficient to overcome the density of the bodies and move them upwardly towards the second end of the interior cavity of the vessel. The greater the density of the bodies, the more the upward component of velocity of the stream of fluid will be required to move the bodies upwardly to overcome the tendency of the bodies to sink within the interior cavity of the vessel.
In some embodiments of the floodable peeling apparatus of the present invention, weighting agents may be added to the stream of fluid to adjust the specific gravity of the fluid to optimize performance and to adjust residence time of the bodies within the apparatus. For example, but not by way of limitation, the addition of salt to a fluid stream of water will cause the specific gravity of the water to increase. Similarly, in some embodiments of the floodable peeling apparatus of the present invention, viscosity agents may be added to the stream of fluid to adjust the viscosity of the fluid to optimize performance and to adjust residence time of the bodies within the apparatus.
In some embodiments of the floodable peeling apparatus of the present invention, one or more vanes, fins or deflection members may be disposed within the interior cavity of the vessel of the apparatus to impart enhanced swirling or spinning action to the stream of fluid with the entrained plurality of bodies therein to optimize performance and to adjust residence time of the bodies within the apparatus. In this manner, the spiraling flow pathway can be manipulated to, for example, increase or decrease residence time and to thereby increase or decrease the number of times a body might encounter a peeling member supported within the interior cavity of the vessel.
In some embodiments of the floodable peeling apparatus of the present invention, the plurality of peeling members may comprise, for example, but not by way of limitation, brush elements, wires, fins or other flexible members instead of or in addition to rigid peeling members such as, for example, but not by way of limitation, blades or other structures having rigid edges. For example, but not by way of limitation, in some embodiments the plurality of peeling members may be a plurality of flexible wires supported proximal to the interior wall of the vessel of the floodable peeling apparatus, the plurality of wires extending radially inwardly towards the center axis. It will be understood that the diameter, distribution, density, length and/or flexibility of the plurality of wires may be optimized for the type of bodies from which peels or skins are to be removed. The texture and thickness of the peel of the bodies to be removed should be considered in optimizing the process to be implemented using an embodiment of the floodable peeling apparatus of the present invention.
An embodiment of the floodable peeling apparatus of the present invention is adapted for receiving and peeling or skinning a batch of bodies and may include passages through or in the interior wall of the vessel for the passage of fluid and solid pieces removed from the peeled or skinned bodies while retaining the bodies within the vessel of the floodable peeling vessel. In other embodiments of the floodable peeling vessel of the present invention, unpeeled or unskinned bodies may be fed continuously into the floodable peeling apparatus, a stream of liquid may be continuously fed into the floodable peeling apparatus, the stream of liquid with solid pieces removed from the bodies is continuously removed, displaced or drained from the floodable peeling apparatus and peeled or skinned bodies are continuously removed from the vessel of the floodable peeling apparatus. In the latter embodiments, the stream of liquid may be routed to a settling tank or through filters or screens to remove the entrained solid pieces therein and thereby condition the discharged stream of liquid for being recirculated into the floodable peeling apparatus.
“Fluid,” as that term is used herein, includes either liquid or gas. In preferred embodiments of the present invention, the specific density of the bodies is higher than the density of the fluid. In most applications where pieces removed from the bodies comprise a solid material, the fluid will be a liquid.
“Peeling” and “skinning,” as those terms are used herein, include peeling, skinning, abrading, rubbing and buffing, and all other terms that indicate that a small bit or piece of material is removed as a result of the peeling or skinning. An abrasive surface, for example, may be one that includes a large number of very small peeling members thereon, whereas the peeling members may also be larger and separated one from the others as depicted in some drawings appended hereto. Although the drawings appended hereto show larger, separated peeling members for visual representation, this should not be taken as limiting of the size or shape of the peeling members.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components and/or groups, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms “preferably,” “preferred,” “prefer,” “optionally,” “may,” and similar terms are used to indicate that an item, condition or step being referred to is an optional (not required) feature of the invention.
The corresponding structures, materials, acts, and equivalents of all means or steps plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present invention has been presented for purposes of illustration and description, but it is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the invention. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
This application depends from and claims priority to U.S. Provisional Patent Application Ser. No. 63/389,909 filed on Jul. 17, 2022.
Number | Date | Country | |
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63389909 | Jul 2022 | US |