Patents by Inventor Steve D. Shivvers
Steve D. Shivvers 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: 20110232124Abstract: A drier apparatus for removing water from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed generally counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with incoming material to be dried.Type: ApplicationFiled: December 13, 2007Publication date: September 29, 2011Inventor: Steve D. Shivvers
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Publication number: 20100154247Abstract: A drier apparatus for removing water or other liquids from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with the incoming material to be dried. In a closed loop embodiment of the apparatus, the fluid is also recycled from the regenerator to the chamber and a chiller is utilized to reduce the temperature of the fluid to a preselected temperature and dew point temperature.Type: ApplicationFiled: August 5, 2009Publication date: June 24, 2010Inventor: Steve D. Shivvers
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Publication number: 20100107439Abstract: A drier for drying wet material includes a drying chamber receiving material to be dried. Heating fluid is flowed generally overall concurrently with the material through at least a portion of the chamber and drying fluid is flowed generally overall countercurrently relative to the material through at least part of the chamber.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Applicant: Tri-Phase Drying Technologies, LLC, an Iowa Limited Liability CompanyInventors: Steve D. Shivvers, Lloyd E. Lerew
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Patent number: 7574816Abstract: A drier apparatus for removing water or other liquids from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with the incoming material to be dried. In a closed loop embodiment of the apparatus, the fluid is also recycled from the regenerator to the chamber and a chiller is utilized to reduce the temperature of the fluid to a preselected temperature and dew point temperature.Type: GrantFiled: July 27, 2007Date of Patent: August 18, 2009Inventor: Steve D. Shivvers
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Publication number: 20080209759Abstract: A drier apparatus for removing water from various materials includes a drying chamber, a regenerator system, a drying fluid system, and a heating fluid recirculation system and a method for use of the apparatus. The material to be dried flows concurrently through the drier with a heating fluid that is segregated from the material but in heat transfer relationship with the material. A drying fluid flows countercurrent through the chamber so as to become heated and at least partially saturated from moisture released by the material. The drying fluid is then used to preheat recycled heating fluid which is further heated by a makeup heater. In some embodiments, the drying fluid is also recycled to the chamber after passing through a chiller.Type: ApplicationFiled: January 25, 2008Publication date: September 4, 2008Inventor: Steve D. Shivvers
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Publication number: 20080209755Abstract: A drier apparatus for removing water from various materials includes a heating portion, a drying chamber, a first fluid recirculation system, a regenerator and a makeup heater. Also, a method for use of the apparatus. The material to be dried is heated with the first fluid and transferred to the drying chamber. The material is passed counterflow through the drying chamber relative to a second fluid. The second fluid upon exiting the drying chamber is used to preheat the first fluid.Type: ApplicationFiled: January 25, 2008Publication date: September 4, 2008Inventor: Steve D. Shivvers
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Publication number: 20080184589Abstract: A drier for drying wet material includes a drying chamber with a plurality of heating region regions and a plurality of drying regions, alternatively located along the path of the material through the drier. Each of the heating regions is heated with heating fluid by a heating recirculation system wherein the heating fluid overall flows in heat exchange with the material in the chamber, but wherein the heating fluid can flow in various ways within each heating region. A fluid circulation system flows drying fluid through each of the drying regions generally in countercurrent flow relative to the flow of material through the drier, although the drying fluid can flow in various ways within each drying region. The drying fluid exiting the drier is used to preheat the heating fluid exiting the drier prior to the heating fluid reentering the drier. Makeup heat is supplied to the system.Type: ApplicationFiled: March 13, 2008Publication date: August 7, 2008Applicant: The Shivvers Group, Inc., an Iowa CorporationInventor: Steve D. Shivvers
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Publication number: 20080184587Abstract: A drier for drying wet material includes a drying chamber with a plurality of heating region regions and a plurality of drying regions, alternatively located along the path of the material through the drier. Each of the heating regions is heated with heating fluid by a heating recirculation system wherein the heating fluid overall flows generally concurrently with the material in the chamber, but wherein the heating fluid can flow in various ways within each heating region. A fluid circulation system flows drying fluid through each of the drying regions generally in countercurrent flow relative to the flow of material through the drier, although the drying fluid can flow in various ways within each drying region. The drying fluid exiting the drier is used to preheat the heating fluid exiting the drier prior to the heating fluid reentering the drier. Makeup heat is supplied to the system.Type: ApplicationFiled: February 4, 2008Publication date: August 7, 2008Inventor: Steve D. Shivvers
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Publication number: 20080178488Abstract: A drier for particulate material including upper, intermediate, and lower regions. The material to be dried is flowed through the regions while a fluid, preferably ambient air, is counterflowed to the material through the lower and then upper regions, but not the intermediate region, such that the fluid cools and dries the material in the lower region and preheats the material in the upper region. The material is further heated by a makeup heater in the intermediate region to a preselected temperature.Type: ApplicationFiled: November 26, 2007Publication date: July 31, 2008Inventor: Steve D. Shivvers
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Publication number: 20080022547Abstract: A drier apparatus for removing water or other liquids from various materials includes a mixer, drying chamber, separator and regenerator and a method for use of the apparatus. The material to be dried is mixed with a heated media to form a mixture which then passes through the chamber. While passing through the chamber, a comparatively cool fluid is passed counter current through the mixture so that the mixture becomes cooler and drier and the fluid becomes hotter and more saturated with moisture. The mixture is then separated into drier material and media. The media is transferred to the regenerator and heated therein by the hot fluid from the chamber and supplemental heat is supplied to bring the media to a preselected temperature for mixing with the incoming material to be dried. In a closed loop embodiment of the apparatus, the fluid is also recycled from the regenerator to the chamber and a chiller is utilized to reduce the temperature of the fluid to a preselected temperature and dew point temperature.Type: ApplicationFiled: July 27, 2007Publication date: January 31, 2008Applicant: Shivvers Group, Inc.Inventor: Steve D. Shivvers
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Patent number: 6988351Abstract: A self-propelled mower includes a frame and a mower housing mounted underbelly relative to the frame by a mounting assembly. The mounting assembly allows the mower housing to be disconnected from the frame and swung near the front of the housing from a mowing configuration to an access configuration as a front end of the mower is raised. In one embodiment the frame includes a yoke that receives a nose of the housing, as the front of the mower is raised. A mechanized drive is utilized in certain embodiments to swing the mower deck to the access configuration.Type: GrantFiled: August 19, 2002Date of Patent: January 24, 2006Assignee: Shivvers Group, Inc.Inventors: Scott A. Schick, Charles C. Shivvers, Steve D. Shivvers
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Patent number: 6923389Abstract: A grain spreader includes a vertical shaft, a receiver for receiving the grain and distributing the grain to a diverter that is rotatably mounted on the shaft with an outlet that is eccentrically positioned relative to the shaft, and a spreader pan that receives the grain form the distributer. The spreader pan is mounted to rotate on the shaft beneath the diverter. The diverter and the spreader pan are rotated by controllable motors so that the diverter can be stopped and the rotational speed of the spreader pan can be varied. The spreader pan has a bottom base and a series of varying length vanes that are vertically and radially aligned on the base to operably engage the grain and spread the grain within a bin or the like. The lengths of the vanes are preferably determined by a formula. In certain embodiments the spreader pan may have an opening to allow grain to pass through the pan without engaging the base so as to fill the center of a bin more evenly.Type: GrantFiled: August 27, 2002Date of Patent: August 2, 2005Assignee: Shivvers, Inc.Inventor: Steve D. Shivvers
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Publication number: 20040046071Abstract: A grain spreader includes a vertical shaft, a receiver for receiving the grain and distributing the grain to a diverter that is rotatably mounted on the shaft with an outlet that is eccentrically positioned relative to the shaft, and a spreader pan that receives the grain form the distributer. The spreader pan is mounted to rotate on the shaft beneath the diverter. The diverter and the spreader pan are rotated by controllable motors so that the diverter can be stopped and the rotational speed of the spreader pan can be varied. The spreader pan has a bottom base and a series of varying length vanes that are vertically and radially aligned on the base to operably engage the grain and spread the grain within a bin or the like. The lengths of the vanes are preferably determined by a formula. In certain embodiments the spreader pan may have an opening to allow grain to pass through the pan without engaging the base so as to fill the center of a bin more evenly.Type: ApplicationFiled: August 27, 2002Publication date: March 11, 2004Applicant: Shivvers Group, Inc.Inventor: Steve D. Shivvers
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Publication number: 20020194826Abstract: A self-propelled mower includes a frame and a mower housing mounted underbelly relative to the frame by a mounting assembly. The mounting assembly allows the mower housing to be disconnected from the frame and swung near the front of the housing from a mowing configuration to an access configuration as a front end of the mower is raised. In one embodiment the frame includes a yoke that receives a nose of the housing, as the front of the mower is raised. A mechanized drive is utilized in certain embodiments to swing the mower deck to the access configuration.Type: ApplicationFiled: August 19, 2002Publication date: December 26, 2002Applicant: Shivvers Group, Inc.Inventors: Scott A. Schick, Charles C. Shivvers, Steve D. Shivvers