Patents by Inventor LaVon Wenger
LaVon Wenger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180228183Abstract: A meat dewatering assembly (10) includes a support frame (12), a twin screw dewatering unit (14), a drive assembly (16) coupled with the unit (14), and a perforated housing (60). The unit (14) has a pair of tapered, non-parallel, intermeshed, helically flighted screws (52, 54) presenting nip clearances (59) between the fighting (55). The drive assembly (16) serves to counter-rotate the screws (52, 54). In use, emulsified meat is passed into the housing (60) during counter-rotation of the screws (52, 54), in order to compress the meat within the clearances (59) and thereby express water from the meat. Adjustment collars (38) permit selective size alteration of the nip clearances (59).Type: ApplicationFiled: December 13, 2017Publication date: August 16, 2018Applicant: Wenger Manufacturing Inc.Inventors: LaVon Wenger, Allan C. Spellmeier
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Patent number: 10028516Abstract: Food or feed processing systems (10, 96) include an extruder (14) and a downstream processor (16, 16a), and are operable to process high meat food or feed formulations. The processors (16, 16a) include an elongated processor barrel (38) presenting an inner surface (44) with a central body or tube (60) within the barrel (38) and presenting an outer surface (62). The surfaces (38, 62) thereby define an elongated annular processing region (70). The barrel (38) and tube (60) are steam heated by means of apparatus (52, 66). A rotatable processing element (72) is also located within the region (70). The element (72) has a plurality of helical vanes (88, 104), which scrape the surfaces (44, 62) to prevent buildup of material on these surfaces.Type: GrantFiled: July 17, 2015Date of Patent: July 24, 2018Assignee: Wenger Manufacturing, Inc.Inventors: Thomas Jørgensen, LaVon Wenger
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Publication number: 20170013848Abstract: Food or feed processing systems (10, 96) include an extruder (14) and a downstream processor (16, 16a), and are operable to process high meat food or feed formulations. The processors (16, 16a) include an elongated processor barrel (38) presenting an inner surface (44) with a central body or tube (60) within the barrel (38) and presenting an outer surface (62). The surfaces (38, 62) thereby define an elongated annular processing region (70). The barrel (38) and tube (60) are steam heated by means of apparatus (52, 66). A rotatable processing element (72) is also located within the region (70). The element (72) has a plurality of helical vanes (88, 104), which scrape the surfaces (44, 62) to prevent buildup of material on these surfaces.Type: ApplicationFiled: July 17, 2015Publication date: January 19, 2017Applicant: WENGER MANUFACTURING, INC.Inventors: Thomas Jørgensen, LaVon Wenger
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Patent number: 8999422Abstract: Improved processes for the production of engineered feed or food ingredients by extrusion comprise the steps of directing a dry fraction and a byproduct slurry fraction in serial order through a preconditioner and twin-screw extruder in order to create a wet extrudate, which is thereafter dried. The dry fraction is selected from sources of plant-derived starch and/or protein, sources of animal-derived functional proteins, and mixtures thereof. The slurry fraction comprises aqueous byproduct slurries from meat, dairy, vegetable, and fruit processing. The extrusion processes yield high-quality ingredients without the need for conventional rendering.Type: GrantFiled: October 26, 2012Date of Patent: April 7, 2015Assignee: Wenger Manufacturing, Inc.Inventors: LaVon Wenger, Marc L. Wenger
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Patent number: 8944672Abstract: Improved preconditioners (10) are provided for partial moisturization of human food or animal feed ingredients prior to downstream final processing thereof in an extruder (56) or pellet mill. The preconditioner (10) preferably includes an elongated housing (12) having a wall (14) with an inlet (20) and an opposed outlet (22). The housing (12) also has a larger diameter end wall (16) proximal to the inlet (20), a smaller diameter end wall (18) proximal to outlet (22), and a progressively converging housing wall (14) with a taper angle of from about 2-9°. A shaft (36) extends along the length of housing (14) and supports a plurality of outwardly extending mixing elements (46) positioned in axially and circumferentially spaced relationship along the length of the shaft (36). The outer margins (54) of the mixing elements (46) cooperatively define a taper along the length of the housing wall (14).Type: GrantFiled: December 27, 2010Date of Patent: February 3, 2015Assignee: Wenger Manufacturing, Inc.Inventors: Marc Wenger, LaVon Wenger
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Patent number: 8827539Abstract: Twin screw cooking extruders are provided requiring reduced specific mechanical energy inputs, through use of screw assemblies including first and second elongated, axially rotatable screws which are substantially coextensive in length, with the screw flighting presenting a pair of axially spaced apart sections of short pitch length and intermediate sections of greater pitch length. The intermediate sections have an axial length greater than about four times the length of the axially spaced apart sections.Type: GrantFiled: October 30, 2012Date of Patent: September 9, 2014Assignee: Wenger Manufacturing, Inc.Inventors: LaVon Wenger, Marc L. Wenger, Galen J. Rokey, Allan C. Spellmeier
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Publication number: 20140087044Abstract: Improved processes for the production of engineered feed or food ingredients by extrusion comprise the steps of directing a dry fraction and a byproduct slurry fraction in serial order through a preconditioner and twin-screw extruder in order to create a wet extrudate, which is thereafter dried. The dry fraction is selected from sources of plant-derived starch and/or protein, sources of animal-derived functional proteins, and mixtures thereof. The slurry fraction comprises aqueous byproduct slurries from meat, dairy, vegetable, and fruit processing. The extrusion processes yield high-quality ingredients without the need for conventional rendering.Type: ApplicationFiled: October 26, 2012Publication date: March 27, 2014Inventors: LaVon Wenger, Marc L. Wenger
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Patent number: 8393780Abstract: Screw assemblies are provided for cooking extruders characterized by operation using significantly reduced specific mechanical energy inputs, wherein the screw assemblies include first and second elongated, axially rotatable screws which are substantially coextensive in length, with the screw flighting presenting a pair of axially spaced apart sections of short pitch length and an intermediate section of greater pitch length. The intermediate section has an axial length greater than about four times the length of the axially spaced apart sections. The screw assemblies permit incorporation of significantly greater amounts of steam into comestible products during cooking thereof, as compared with prior art designs.Type: GrantFiled: October 28, 2011Date of Patent: March 12, 2013Assignee: Wenger Manufacturing, Inc.Inventors: LaVon Wenger, Marc Wenger, Galen J. Rokey, Allan C. Spellmeier
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Publication number: 20130059053Abstract: Improved extruders and methods for the extrusion cooking of comestible products such as human foods or animal feeds are provided wherein the products may be produced with very low specific mechanical energy (SME) inputs as compared with conventional processing. The methods preferably involve introduction of very high levels of steam into the extruder barrel during processing, which concomitantly reduces necessary SME inputs required to achieve desired cook and expansion levels in the products. In accordance with the invention, fully-cooked pet foods can be fabricated with SME inputs of up to about 18 kWhr/T, whereas aquatic feeds can be fabricated with SME inputs of up to about 16 kWhr/T.Type: ApplicationFiled: October 30, 2012Publication date: March 7, 2013Inventors: LaVon Wenger, Marc L. Wenger, Galen J. Rokey, Allan C. Spellmeier
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Patent number: 8277866Abstract: Improved extruded starch-bearing products (e.g., starches, starch-bearing legumes, starch-bearing grains and formulations containing any of the foregoing) are provided having relatively high cook values and low cold water viscosities. The products are prepared by initial preconditioning to partially cook the starting material(s), followed by low shear extrusion cooking, with a total STE/SME ratio of at least about 4.Type: GrantFiled: April 21, 2010Date of Patent: October 2, 2012Assignee: Wenger Manufacturing, Inc.Inventors: Brian S. Plattner, LaVon Wenger, Galen J. Rokey
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Patent number: 8246240Abstract: Improved single screw extruders systems (40) are provided including a single screw extruder (42, 92) as well as an upstream preconditioner (44). The extruders (42, 92) include a single, internal, elongated, helically flighted, axially rotatable screw assembly (52) having one or more improved screw sections (74, 74a, 76). The screw sections (74, 74a, 76) include specially configured flighting (86) wherein adjacent flighting portions (86a, 86b) have smoothly arcuate surfaces (88) extending between the respective flighting portion peripheries (90a, 90b). This flighting design provides smooth, substantially surge-free operation while increasing SME and cook values. The preferred preconditioner (44) has independently controlled mixing shafts (106, 108) allowing the shafts (106, 108) to be rotated at different rotational speeds and/or directions.Type: GrantFiled: January 3, 2008Date of Patent: August 21, 2012Assignee: Wenger Manufacturing, Inc.Inventor: LaVon Wenger
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Publication number: 20120171346Abstract: Improved extruded starch-bearing products (e.g., starches, starch-bearing legumes, starch-bearing grains and formulations containing any of the foregoing) are provided having relatively high cook values and low cold water viscosities. The products are prepared by initial preconditioning to partially cook the starting material(s), followed by low shear extrusion cooking, with a total STE/SME ratio of at least about 4.Type: ApplicationFiled: March 13, 2012Publication date: July 5, 2012Applicant: WENGER MANUFACTURING, INC.Inventors: Brian S. Plattner, LaVon Wenger, Galen J. Rokey
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Publication number: 20120092952Abstract: Improved extruders and methods for the extrusion cooking of comestible products such as human foods or animal feeds are provided wherein the products may be produced with very low specific mechanical energy (SME) inputs as compared with conventional processing. The methods preferably involve introduction of very high levels of steam into the extruder barrel during processing, which concomitantly reduces necessary SME inputs required to achieve desired cook and expansion levels in the products. In accordance with the invention, fully-cooked pet foods can be fabricated with SME inputs of up to about 18 kWhr/T, whereas aquatic feeds can be fabricated with SME inputs of up to about 16 kWhr/T.Type: ApplicationFiled: October 28, 2011Publication date: April 19, 2012Applicant: WENGER MANUFACTURING, INC.Inventors: LaVon Wenger, Marc Wenger, Galen J. Rokey, Allan C. Spellmeier
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Publication number: 20120052174Abstract: Improved preconditioners (10) are provided for partial moisturization of human food or animal feed ingredients prior to downstream final processing thereof in an extruder (56) or pellet mill. The preconditioner (10) preferably includes an elongated housing (12) having a wall (14) with an inlet (20) and an opposed outlet (22). The housing (12) also has a larger diameter end wall (16) proximal to the inlet (20), a smaller diameter end wall (18) proximal to outlet (22), and a progressively converging housing wall (14) with a taper angle of from about 2-9°. A shaft (36) extends along the length of housing (14) and supports a plurality of outwardly extending mixing elements (46) positioned in axially and circumferentially spaced relationship along the length of the shaft (36). The outer margins (54) of the mixing elements (46) cooperatively define a taper along the length of the housing wall (14).Type: ApplicationFiled: December 27, 2010Publication date: March 1, 2012Applicant: Wenger Manufacturing, Inc.Inventors: Marc Wenger, LaVon Wenger
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Patent number: 7987774Abstract: An improved extruder (10) is provided which permits successful introduction of very high quantities of injected steam into material being processed, on the order of 6-8% or more by weight steam. The extruder (10) includes an elongated extruder barrel (12) having at least one elongated, axially rotatable, helically flighted extrusion screw (16,18) therein. The barrel (12) is equipped with obliquely oriented steam injection ports (44, 46) along the length thereof, housing steam injectors (48, 50). The barrel (12) includes relatively high free volume steam injection heads (32 and 38, 40) having therein screw sections (78, 82) of relatively long pitch length, together with steam restriction heads (30, 34, and 42) on opposite sides of the injection heads (32, and 38, 40) having therein relatively short pitch length screw sections (76, 80, 84).Type: GrantFiled: March 16, 2007Date of Patent: August 2, 2011Assignee: Wenger Manufacturing, Inc.Inventors: LaVon Wenger, Galen J. Rokey, Allan Spellmeier
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Publication number: 20110091627Abstract: Improved extruders and methods for the extrusion cooking of comestible products such as human foods or animal feeds are provided wherein the products may be produced with very low specific mechanical energy (SME) inputs as compared with conventional processing. The methods preferably involve introduction of very high levels of steam into the extruder barrel (12) during processing, which concomitantly reduces necessary SME inputs required to achieve desired cook and expansion levels in the products. In accordance with the invention, fully-cooked pet foods can be fabricated with SME inputs of up to about 18 kWhr/T, whereas aquatic feeds can be fabricated with SME inputs of up to about 16 kWhr/T.Type: ApplicationFiled: December 28, 2010Publication date: April 21, 2011Applicant: WENGER MANUFACTURING, INC.Inventors: LaVon Wenger, Marc Wenger, Galen J. Rokey, Allan C. Spellmeier
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Publication number: 20110086150Abstract: Improved extruded starch-bearing grain products (e.g., corn and wheat) are provided having relatively high cook values and low cold water viscosities. The products are prepared by initial preconditioning to partially cook the starting material(s), followed by low shear extrusion cooking, with a total STE/SME ratio of at least about 4.Type: ApplicationFiled: July 2, 2010Publication date: April 14, 2011Applicant: WENGER MANUFACTURING, INC.Inventors: Brian S. Plattner, LaVon Wenger, Galen J. Rokey
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Publication number: 20110086151Abstract: Improved extruded starch-bearing products (e.g., starches, starch-bearing legumes, starch-bearing grains and formulations containing any of the foregoing) are provided having relatively high cook values and low cold water viscosities. The products are prepared by initial preconditioning to partially cook the starting material(s), followed by low shear extrusion cooking, with a total STE/SME ratio of at least about 4.Type: ApplicationFiled: April 21, 2010Publication date: April 14, 2011Applicant: WENGER MANUFACTURING, INC.Inventors: Brian S. Plattner, LaVon Wenger, Galen J. Rokey
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Patent number: 7906166Abstract: An improved, dual-shaft preconditioner (10, 70, 102) is provided having independent drive mechanism (18, 20, 78, 80) operatively coupled with a corresponding preconditioner shaft (14, 16, 74, 76, 106, 108) and permitting selective rotation of the shafts (14, 16, 74, 76, 106, 108) at rotational speeds and directions independent of each other. Preferably, the speed differential between the shafts (14, 16, 74, 76, 106, 108) is at least about 5:1. The mechanisms (18, 20, 78, 80) are operatively coupled with a digital control device (60) to allow rotational speed and direction control. Preferably, the preconditioner (10, 70, 102) is supported on load cells (62, 100) also coupled with control device (60) to permit on-the-go changes in material retention time within the preconditioner (10, 70, 102).Type: GrantFiled: November 11, 2008Date of Patent: March 15, 2011Assignee: Wenger Manufacturing, Inc.Inventors: LaVon Wenger, Marc Wenger, Galen J. Rokey
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Patent number: 7883263Abstract: Improved preconditioners (10) are provided for partial moisturization of human food or animal feed ingredients prior to downstream final processing thereof in an extruder (56) or pellet mill. The preconditioner (10) preferably includes an elongated housing (12) having a wall (14) with an inlet (20) and an opposed outlet (22). The housing (12) also has a larger diameter end wall (16) proximal to the inlet (20), a smaller diameter end wall (18) proximal to outlet (22), and a progressively converging housing wall (14) with a taper angle of from about 2-9°. A shaft (36) extends along the length of housing (14) and supports a plurality of outwardly extending mixing elements (46) positioned in axially and circumferentially spaced relationship along the length of the shaft (36). The outer margins (54) of the mixing elements (46) cooperatively define a taper along the length of the housing wall (14).Type: GrantFiled: August 30, 2010Date of Patent: February 8, 2011Assignee: Wenger Manufacturing, Inc.Inventors: Marc Wenger, LaVon Wenger