Patents by Inventor Renard G. Tubergen
Renard G. Tubergen 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: 20230302392Abstract: A cyclonic chiller-separator, including a vertically oriented treatment tower defining an interior space and having an exhaust inlet disposed in an upper portion, and a chimney with an exhaust outlet; an exhaust stream conduit in fluid communication with said interior volume of said treatment tower through said exhaust inlet, wherein said exhaust inlet is configured to induce cyclonic fluid motion in an exhaust stream entering said interior volume; a coolant water source; and a plurality of nozzles disposed about interior walls of said treatment tower and in fluid communication with said coolant water source for spraying cooling water into said interior volume above and into an exhaust stream introduced into said interior volume so as to cool, condense, and precipitate volatile organic compounds and organic acids, and to entrain and remove particulates from the exhaust stream.Type: ApplicationFiled: April 11, 2023Publication date: September 28, 2023Applicant: VortX KleanAir SystemsInventors: Renard G. Tubergen, Ronald G. Kleist
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Patent number: 8091942Abstract: An embodiment of the invention includes a ramp mechanism configured for use in a recreational vehicle including a ramp portion and an actuation mechanism. The ramp portion is movable between a closed position and an open position. The actuation mechanism is configured to move the ramp portion between the closed position and the open position. The actuation mechanism includes a first mounting assembly, a second mounting assembly and an actuator connecting the first mounting assembly to the second mounting assembly.Type: GrantFiled: November 19, 2009Date of Patent: January 10, 2012Assignee: Gumbo Product Development, Inc.Inventors: Robert R. Watts, William G. Guerrant, Renard G. Tubergen
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Publication number: 20100123330Abstract: An embodiment of the invention includes a ramp mechanism configured for use in a recreational vehicle including a ramp portion and an actuation mechanism. The ramp portion is movable between a closed position and an open position. The actuation mechanism is configured to move the ramp portion between the closed position and the open position. The actuation mechanism includes a first mounting assembly, a second mounting assembly and an actuator connecting the first mounting assembly to the second mounting assembly.Type: ApplicationFiled: November 19, 2009Publication date: May 20, 2010Applicant: Gumbo Product Development, Inc.Inventors: Robert R. Watts, William G. Guerrant, Renard G. Tubergen
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Patent number: 7360835Abstract: A chair includes a base, a seat, a back, and a control operably supporting the seat and back on the base for movement between upright and recline positions. The seat and back include a stiff perimeter frame with opposing perimeter sections, and a plurality of rods each independently bendable in vertical and angled directions. End bearings on the rods are captured in pockets in the perimeter frame, which limits their inward and outward sliding movement. The control includes front and rear leaf springs and a pivot arm operably supporting the seat and the back for synchronous movement, with the direction of movement being such that energy is stored during recline. The energy stored during recline assists in providing a heavier person with added counterbalancing force during recline. A booster mechanism is also selectively engageable for added support upon recline.Type: GrantFiled: June 4, 2007Date of Patent: April 22, 2008Assignee: Steelcase Inc.Inventors: Renard G. Tubergen, Gordon J. Peterson, Kurt R. Heidmann
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Patent number: 7334845Abstract: A seating unit includes a perimeter frame, a flexible seating surface supported by the frame, and parallel elongated resilient force-distributing members coupled to the seating surface to control a contour of the seating surface when supporting a seated user. The resilient force-distributing members are bendable along their length and are sufficient in number and distribution to substantially reduce localized deflection of the seating surface and thereby reduce pressure point contact felt by the seated user. The resilient force-distributing members can be wire rods, long strips, or other resilient material with memory.Type: GrantFiled: May 14, 2004Date of Patent: February 26, 2008Assignee: Steelcase Development CorporationInventors: Gordon J. Peterson, Kurt R. Heidmann, Renard G. Tubergen, Christopher J. Norman, Bruce M. Smith, Steven James Beukema
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Publication number: 20070198098Abstract: An improved prosthetic device having a plurality of independently movable members that operate at peak efficiency for a majority of the time that it is in the on state, thereby extending battery life, includes at least two members that are independently movable, a fluid actuator associated with each of the independently movable members for effecting movement, a fluid pump or compressor having a fluid inlet and a compressed or pressurized fluid outlet, an electrical motor coupled to the pump or compressor, a fluid conveying conduit between the pump or compressor outlet and the actuator, a fluid reservoir in communication with the conduit between the pump or compressor outlet and the actuator, and at least one valve associated with each of the independently movable members.Type: ApplicationFiled: February 15, 2007Publication date: August 23, 2007Inventors: Gerald P. Roston, Renard G. Tubergen
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Patent number: 7234774Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports are integrally molded with the center section of the motion control.Type: GrantFiled: September 23, 2005Date of Patent: June 26, 2007Assignee: Steelcase Development CorporationInventors: Kurt R. Heidmann, Renard G. Tubergen
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Patent number: 7226130Abstract: A chair includes a base, a seat, a back, and a control operably supporting the seat and back on the base for movement between upright and recline positions. The seat and back include a stiff perimeter frame with opposing perimeter sections, and a plurality of rods each independently bendable in vertical and angled directions. End bearings on the rods are captured in pockets in the perimeter frame, which limits their inward and outward sliding movement. The control includes front and rear leaf springs and a pivot arm operably supporting the seat and the back for synchronous movement, with the direction of movement being such that energy is stored during recline. The energy stored during recline assists in providing a heavier person with added counterbalancing force during recline. A booster mechanism is also selectively engageable for added support upon recline.Type: GrantFiled: June 5, 2003Date of Patent: June 5, 2007Assignee: Steelcase Development CorporationInventors: Renard G. Tubergen, Gordon J. Peterson, Kurt R. Heidmann
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Patent number: 6957863Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.Type: GrantFiled: September 13, 2004Date of Patent: October 25, 2005Assignee: Steelcase Development CorporationInventors: Kurt R. Heidmann, Renard G. Tubergen
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Patent number: 6869142Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.Type: GrantFiled: September 12, 2002Date of Patent: March 22, 2005Assignee: Steelcase Development CorporationInventors: Kurt R. Heidmann, Renard G. Tubergen
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Publication number: 20040245841Abstract: A seating unit includes a perimeter frame, a flexible seating surface supported by the frame, and parallel elongated resilient force-distributing members coupled to the seating surface to control a contour of the seating surface when supporting a seated user. The resilient force-distributing members are bendable along their length and are sufficient in number and distribution to substantially reduce localized deflection of the seating surface and thereby reduce pressure point contact felt by the seated user. The resilient force-distributing members can be wire rods, long strips, or other resilient material with memory.Type: ApplicationFiled: May 14, 2004Publication date: December 9, 2004Inventors: Gordon J. Peterson, Kurt R. Heidmann, Renard G. Tubergen, Christopher J. Norman, Bruce M. Smith, Steven James Beukema
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Publication number: 20040245840Abstract: A chair includes a base, a seat, a back, and a control operably supporting the seat and back on the base for movement between upright and recline positions. The seat and back include a stiff perimeter frame with opposing perimeter sections, and a plurality of rods each independently bendable in vertical and angled directions. End bearings on the rods are captured in pockets in the perimeter frame, which limits their inward and outward sliding movement. The control includes front and rear leaf springs and a pivot arm operably supporting the seat and the back for synchronous movement, with the direction of movement being such that energy is stored during recline. The energy stored during recline assists in providing a heavier person with added counterbalancing force during recline. A booster mechanism is also selectively engageable for added support upon recline.Type: ApplicationFiled: June 5, 2003Publication date: December 9, 2004Inventors: Renard G. Tubergen, Gordon J. Peterson, Kurt R. Heidmann
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Publication number: 20040051362Abstract: A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and/or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and/or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.Type: ApplicationFiled: September 12, 2002Publication date: March 18, 2004Inventors: Kurt R. Heidmann, Renard G. Tubergen