Patents by Inventor David Dornbush
David Dornbush 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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Patent number: 5878508Abstract: A modular food dehydrator utilizing a heater blower assembly located on a top surface of a dehydrator module. The heater blower assembly includes a motor driven fan, a heating element and an air distribution portion for directing heated air across the support surfaces. The heater blower assembly is preferably releasably attachable to the dehydrator module. In a first embodiment, the dehydrator module has a central opening extending generally vertically through the support surfaces in fluid communication with the heater blower assembly for directing heated air radially outward across the plurality of support surfaces. The dehydrator module preferably includes outlet vents on an outer perimeter surface for exhausting the heated air. At least one outlet vent is preferably located between each of the plurality of support surfaces.Type: GrantFiled: January 10, 1997Date of Patent: March 9, 1999Assignee: American Harvest, Inc.Inventors: John L. Knoll, Troy M. Iverson, Jeffrey E. Sandahl, Bryce M. Lemon, Joaquim da Rosa, Chad S. Erickson, David A. Dornbush, Richard P. Riedel
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Patent number: 5839356Abstract: A front-loading bread making machines for making two loaves of bread simultaneously. The bread maker utilizes bread pans with a pseudo-overrise which emulate the shape of conventional bread and facilitates handling of the bread pans. The bread pans have a high pan surface area to opening ratio which decreases rise and bake time.Type: GrantFiled: August 30, 1994Date of Patent: November 24, 1998Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Neal P. Barnes, Michael A. Fritz, Troy M. Iverson, Michael F. Meyer, Kevin B. Moore, Jeffrey E. Sandahl, Jeffrey S. Duncan
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Patent number: 5699722Abstract: A rapid cooking method is provided in which food pieces are contacted with an air stream at a velocity of at least 1,000 linear feet per minute. Rapid cooking equipment is disclosed which creates high velocity air current.Type: GrantFiled: December 8, 1995Date of Patent: December 23, 1997Inventors: Chad Erickson, David Dornbush, John Finn
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Patent number: 5520096Abstract: A handle adapted for replacing a heater and blower system removably located in a central opening defined a top enclosure of a countertop oven. The handle comprises a mounting system for removably attaching the handle to the top enclosure in order to replace the heater and blower system when the heater and blower system is removed. The handle enables a user to remove the top enclosure from the bottom enclosure by lifting up on the handle when the handle is installed in the top enclosure. In this manner, the countertop oven may be converted to a food server comprising the handle, the top enclosure, and the bottom enclosure.Type: GrantFiled: March 3, 1995Date of Patent: May 28, 1996Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Chad S. Erickson, Steven Alseth, N. Philip Sked, Robert T. Lee, Theodore H. Rehmeyer
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Patent number: 5513558Abstract: A rapid cooking method is provided in which food pieces are contacted with an air stream at a velocity of at least 1,000 linear feet per minute.Rapid cooking equipment is disclosed which creates high velocity air current.Type: GrantFiled: May 5, 1993Date of Patent: May 7, 1996Assignee: American Harvest, Inc.Inventors: Chad Erickson, David Dornbush, John Finn
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Patent number: 5484621Type: GrantFiled: September 29, 1994Date of Patent: January 16, 1996Assignee: American Harvest, Inc.Inventors: Chad Erickson, David Dornbush, John Finn
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Patent number: 5465651Abstract: A rapid cooking method is provided in which food pieces are contacted with an air stream at a velocity of at least 1,000 linear feet per minute.Rapid cooking equipment is disclosed which creates high velocity air current.Type: GrantFiled: March 21, 1995Date of Patent: November 14, 1995Assignee: American Harvest, Inc.Inventors: Chad Erickson, David Dornbush, John Finn
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Patent number: 5466912Abstract: A convection oven includes a frame having a base member and two upright members which extend upwardly from the base member. A cooking chamber is removably supported by the frame and includes an upper enclosure member and a lower enclosure member. A housing attached to the upper enclosure member is configured so that cool air flows from a peripheral portion of an arm into a central portion of the housing and then is expelled from the arm over the upper surface of the upper enclosure member. A passive hinge connects the housing to the frame such that the housing and upper enclosure member may be both separated from the frame and lower enclosure member by lifting the housing vertically and pivoted relative to the frame and lower enclosure member. An extension ring selectively enlarges the size of the cooking chamber. A holster may hold the upper enclosure member and the housing when they are separated from the lower enclosure member.Type: GrantFiled: July 27, 1993Date of Patent: November 14, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Chad S. Erickson, Troy M. Iverson, Jeffrey E. Sandahl, Kevin B. Moore, Neal P. Barnes, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke
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Patent number: 5438916Abstract: A rack invention includes a rack having a rack surface and a plurality of legs attached to the rack surface. Each of the legs is made of wire and has two straight segments extending downwardly from the rack surface and a connecting segment which connects together the straight segments. The connecting segment is shaped so as to allow the rack surface to be placed at one of a plurality of predetermined distances above the surface in the oven. The cooking rack invention also includes a plurality of such racks which may be used together in an oven. In such an instance, the length of the straight segments of one rack are different that those of another rack, so that the racks provide different ranges of height adjustability.Type: GrantFiled: March 26, 1993Date of Patent: August 8, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Steven Alseth, Chad S. Erickson, Theodore H. Rehmeyer, N. Philip Sked, Robert T. Lee
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Patent number: 5420393Abstract: Assemblies for increasing airflow and heating efficiency in a multi-shelf food heating device having a base, a plurality of circular vertically stacked trays, and a top, wherein the airflow within the device is assisted by a fan is disclosed. One assembly involves a biasing system supported in the base for biasing the motor in place. Another assembly involves a thin, substantially planar constructed heater and a radial fan supported within a chamber of the base of the device, wherein the heater is aligned with the movement of the airflow within the chamber so that the airflow therein is substantially unobstructed by the heater. Another assembly involves providing the base with a wall substantially surrounding and adjacent an air inlet in the base to define a cavity into which substantially all of the airflow from the air inlet is directed, so that the motor is continuously cooled during operation of the device.Type: GrantFiled: January 14, 1994Date of Patent: May 30, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Steven M. Alseth, Chad S. Erickson
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Patent number: 5416950Abstract: A handle adapted for replacing a heater and blower system removably located in a central opening defined a top enclosure of a countertop oven. The handle comprises a mounting system for removably attaching the handle to the top enclosure in order to replace the heater and blower system when the heater and blower system is removed. The handle enables a user to remove the top enclosure from the bottom enclosure by lifting up on the handle when the handle is installed in the top enclosure. In this manner, the countertop oven may be converted to a food server comprising the handle, the top enclosure, and the bottom enclosure.Type: GrantFiled: January 8, 1993Date of Patent: May 23, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Chad S. Erickson, Steven Alseth
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Patent number: 5403607Abstract: A rapid cooking method is provided in which food pieces are contacted with an air stream at a velocity of at least 1,000 linear feet per minute. Rapid cooking equipment is disclosed which creates high velocity air current.Type: GrantFiled: February 4, 1993Date of Patent: April 4, 1995Assignee: American Harvest, Inc.Inventors: Chad Erickson, David Dornbush, John Finn
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Patent number: D438756Type: GrantFiled: August 29, 1994Date of Patent: March 13, 2001Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Neal P. Barnes, Jeffrey S. Duncan
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Patent number: D354659Type: GrantFiled: November 17, 1993Date of Patent: January 24, 1995Assignee: Alternative Prioneering Systems, Inc.Inventors: David A. Dornbush, Andrew L. Von Duyke, Neal P. Barnes
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Patent number: D355564Type: GrantFiled: March 31, 1993Date of Patent: February 21, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Chad S. Erickson, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke
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Patent number: D356230Type: GrantFiled: January 8, 1993Date of Patent: March 14, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, William Dorr, Chad S. Erickson, N. Philip Sked, Steven Alseth
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Patent number: D356716Type: GrantFiled: January 8, 1993Date of Patent: March 28, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, N. Philip Sked, Robert T. Lee, Theodore H. Rehmeyer
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Patent number: D357383Type: GrantFiled: April 13, 1993Date of Patent: April 18, 1995Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Chad S. Erickson, Jeffrey E. Sandahl, Neal P. Barnes, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke, Kevin B. Moore
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Patent number: D367397Type: GrantFiled: July 15, 1994Date of Patent: February 27, 1996Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Neal P. Barnes
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Patent number: D369274Type: GrantFiled: April 27, 1993Date of Patent: April 30, 1996Assignee: American Harvest, Inc.Inventors: David A. Dornbush, Chad S. Erickson, Jeffrey E. Sandahl, Neal P. Barnes, James B. Easley, Richard C. Jackson, Andrew L. Von Duyke, Kevin B. Moore