Patents by Inventor David Carmein
David Carmein 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: 11911653Abstract: A motor driven omnidirectional treadmill that allows users to walk, jog, or run in any direct ion. When the treadmill is coupled with computer-generated immersive environments users can maneuver their way on-foot through 360-degree VR environments of infinite expanse and scope.Type: GrantFiled: October 2, 2019Date of Patent: February 27, 2024Assignee: OmniPad, Inc.Inventors: Neil Epstein, David Carmein
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Patent number: 11724426Abstract: A method of producing a product utilizing a liner. The method comprises securing, at an injection molding manufacturing system, a liner to a first half of a mold. The method further comprises clamping, at an injection molding manufacturing system, the first half of the mold to a second half of the mold, wherein clamping the first half of the mold to a second half of the mold generates a total mold. The method further comprises generating, at an injection molding manufacturing system, a formed product, wherein generating the formed product further comprises filling an opening of the total mold with a molten material. The method further comprises ejecting, at an injection molding manufacturing system, the formed product, and the liner from a completed first half of the mold and releasing, at an injection molding manufacturing system, the formed product from the liner.Type: GrantFiled: August 27, 2021Date of Patent: August 15, 2023Assignee: PROTOLABS, INC.Inventor: David Carmein
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Publication number: 20220024096Abstract: A method of producing a product utilizing a liner. The method comprises securing, at an injection molding manufacturing system, a liner to a first half of a mold. The method further comprises clamping, at an injection molding manufacturing system, the first half of the mold to a second half of the mold, wherein clamping the first half of the mold to a second half of the mold generates a total mold. The method further comprises generating, at an injection molding manufacturing system, a formed product, wherein generating the formed product further comprises filling an opening of the total mold with a molten material. The method further comprises ejecting, at an injection molding manufacturing system, the formed product, and the liner from a completed first half of the mold and releasing, at an injection molding manufacturing system, the formed product from the liner.Type: ApplicationFiled: August 27, 2021Publication date: January 27, 2022Applicant: PROTOLABS, INC.Inventor: David Carmein
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Publication number: 20210346755Abstract: A motor driven omnidirectional treadmill that allows users to walk, jog, or run in any direct ion. When the treadmill is coupled with computer-generated immersive environments users can maneuver their way on-foot through 360-degree VR environments of infinite expanse and scope.Type: ApplicationFiled: October 2, 2019Publication date: November 11, 2021Inventors: Neil Epstein, David Carmein
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Patent number: 11130268Abstract: A method of producing a product utilizing a liner. The method comprises securing, at an injection molding manufacturing system, a liner to a first half of a mold. The method further comprises clamping, at an injection molding manufacturing system, the first half of the mold to a second half of the mold, wherein clamping the first half of the mold to a second half of the mold generates a total mold. The method further comprises generating, at an injection molding manufacturing system, a formed product, wherein generating the formed product further comprises filling an opening of the total mold with a molten material. The method further comprises ejecting, at an injection molding manufacturing system, the formed product, and the liner from a completed first half of the mold and releasing, at an injection molding manufacturing system, the formed product from the liner.Type: GrantFiled: July 21, 2020Date of Patent: September 28, 2021Assignee: Protolabs, Inc.Inventor: David Carmein
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Publication number: 20160368006Abstract: A system for energy extraction from a fluid stream including a wave pump configured to pump a volume of liquid from a liquid source in response to wave motion of the liquid source; a charge source, fluidly connected to the volume of fluid, that emits a charged droplet of the volume of fluid into the fluid stream, the charged droplet having a first polarity; and an electrical isolation mechanism configured to selectively electrically isolate the charge source from the wave pump.Type: ApplicationFiled: December 23, 2013Publication date: December 22, 2016Applicant: Accio Energy, Inc.Inventors: Francis Mills, Dawn White, David Carmein
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Publication number: 20160040646Abstract: An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.Type: ApplicationFiled: October 22, 2015Publication date: February 11, 2016Inventors: David Carmein, Dawn White, Randy C. Stevenson
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Patent number: 9194368Abstract: An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.Type: GrantFiled: October 18, 2011Date of Patent: November 24, 2015Assignee: Accio Energy, Inc.Inventors: David Carmein, Dawn White, Randy C. Stevenson
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Patent number: 8878150Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: GrantFiled: July 1, 2013Date of Patent: November 4, 2014Assignee: Accio Energy, Inc.Inventors: David Carmein, Dawn White
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Publication number: 20140292140Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: ApplicationFiled: June 9, 2014Publication date: October 2, 2014Inventors: David Carmein, Dawn White
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Patent number: 8796655Abstract: An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.Type: GrantFiled: July 9, 2013Date of Patent: August 5, 2014Assignee: Accio Energy, Inc.Inventors: David Carmein, Dawn White, Randy C Stevenson
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Patent number: 8779404Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: GrantFiled: July 1, 2013Date of Patent: July 15, 2014Assignee: Accio Energy, Inc.Inventors: David Carmein, Dawn White
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Publication number: 20140110494Abstract: A system for energy extraction from a fluid stream including a wave pump configured to pump a volume of liquid from a liquid source in response to wave motion of the liquid source; a charge source, fluidly connected to the volume of fluid, that emits a charged droplet of the volume of fluid into the fluid stream, the charged droplet having a first polarity; and an electrical isolation mechanism configured to selectively electrically isolate the charge source from the wave pump.Type: ApplicationFiled: December 23, 2013Publication date: April 24, 2014Applicant: Accio Energy, Inc.Inventors: Francis Mills, Dawn White, David Carmein
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Publication number: 20130292944Abstract: An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.Type: ApplicationFiled: July 9, 2013Publication date: November 7, 2013Inventors: David Carmein, Dawn White, Randy C. Stevenson
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Publication number: 20130293034Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: ApplicationFiled: July 1, 2013Publication date: November 7, 2013Inventors: David Carmein, Dawn White
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Publication number: 20130285378Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: ApplicationFiled: July 1, 2013Publication date: October 31, 2013Inventors: David Carmein, Dawn White
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Publication number: 20130285376Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: ApplicationFiled: July 1, 2013Publication date: October 31, 2013Inventors: David Carmein, Dawn White
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Patent number: 8502181Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: GrantFiled: December 21, 2011Date of Patent: August 6, 2013Assignee: Accio Energy, Inc.Inventors: David Carmein, Dawn White
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Patent number: 8421047Abstract: A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric field on the particle. A sensor monitors an ambient atmospheric condition, and a controller changes a parameter of the injector in response to a change in the atmospheric condition.Type: GrantFiled: January 22, 2009Date of Patent: April 16, 2013Assignee: Accio Energy, Inc.Inventors: David Carmein, Dawn White
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Publication number: 20120211989Abstract: An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a second electric field opposing the first, such that the net electric field at a predetermined distance downstream from the injector is approximately zero; an upstream collector that collects a second species of particles having a polarity opposite the first particle species; a downstream collector that collects the charged particle; and a load coupled between the downstream collector and the upstream collector, wherein the load converts the kinetic energy of the gas stream into electric power.Type: ApplicationFiled: October 18, 2011Publication date: August 23, 2012Inventors: DAVID CARMEIN, DAWN WHITE, RANDY C. STEVENSON