Patents by Inventor Dennis Helfritch
Dennis Helfritch 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: 20240316583Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: ApplicationFiled: June 4, 2024Publication date: September 26, 2024Applicants: South Dakota Board of Regents, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Patent number: 11998942Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: GrantFiled: March 2, 2022Date of Patent: June 4, 2024Assignees: South Dakota Board of Regents, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Publication number: 20220184647Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: ApplicationFiled: March 2, 2022Publication date: June 16, 2022Applicants: South Dakota Board of Regents, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Patent number: 11292019Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: GrantFiled: August 30, 2019Date of Patent: April 5, 2022Assignees: South Dakota Board of Regents, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Publication number: 20190381525Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: ApplicationFiled: August 30, 2019Publication date: December 19, 2019Applicants: South Dakota Board of Regents, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Patent number: 10441962Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: GrantFiled: October 29, 2013Date of Patent: October 15, 2019Assignees: SOUTH DAKOTA BOARD OF REGENTS, GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Publication number: 20140117109Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.Type: ApplicationFiled: October 29, 2013Publication date: May 1, 2014Inventors: Christian Widener, Victor Champagne, Matthew Trexler, Dennis Helfritch, Rob Hrabe
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Patent number: 5695616Abstract: A flue-gas scrubbing arrangement removes sulfur oxides and nitrogen oxides from stack gases at low energy costs and converts these into non-noxious ammonium sulfate-nitrate, which is utilizable as an agricultural fertilizer. The flue gases, cleaned of fly ash, pass through a spray dryer, where water is spray-injected to cool and humidify the gas. Then the humidified gas passes through an e-beam reactor where high energy electrons bombard water and oxygen to create strong reagents that react with the SO.sub.2 and NO.sub.X to form sulfuric and nitric acids. These react with ammonia gas that is injected into the flue gas stream to form sulfate and nitrate salts of ammonia. The ammonia should be present in near stoichiometric amounts relative to the sulfur and nitrogen oxides. The flue gas with the moisture and entrained salts pass to a wet precipitator, where the salts are removed in aqueous solution, and the remaining, scrubbed flue gases pass to the stack.Type: GrantFiled: September 27, 1995Date of Patent: December 9, 1997Assignees: Virginia Accelerators Corporation, Research-Cotrella Companies, Inc.Inventors: Dennis Helfritch, Ralph D. Genuario