Patents by Inventor Darrin Leonhardt

Darrin Leonhardt 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).

  • Publication number: 20160209113
    Abstract: A UV light curing system is provided. The UV light curing system includes: a UV light source; a primary reflector for reflecting light emitted by the UV light source in a direction of an enclosure, the enclosure at least partially surrounding an object of interest; and a secondary reflector on an opposite side of the enclosure with respect to the primary reflector, the secondary reflector being positioned along a portion of a length of the enclosure, the secondary reflector surrounding at least 40% of the enclosure at the portion of the length of the enclosure.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Inventors: Darrin Leonhardt, William Curtis Harper
  • Publication number: 20150069272
    Abstract: A light-emitting source for curing applications is disclosed. The light-emitting source comprises a first housing having a top wall and one or more side walls. The top wall and the one or more side walls define a first enclosure having a first open end. The light-emitting source further comprises a plurality of light-emitting devices arranged within the first enclosure of the first housing. One side of each of the plurality of light-emitting devices faces outward from the first open end of the first enclosure. The plurality of light-emitting devices is configured to emit light from the first open end to produce a substantially uniform area of illumination on a facing portion of a surface of a target.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Inventors: Darrin Leonhardt, Pradyumna Kumar Swain
  • Patent number: 8836220
    Abstract: A modular magnetron for use in UV curing lamp assembly is disclosed. The modular magnetron includes a vacuum tube having a vacuum tube body, a top assembly, and a bottom assembly. The top assembly is configured to substantially overlay the vacuum tube. The bottom assembly is configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity. The top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 16, 2014
    Assignee: Heraeus Noblelight Fusion UV Inc.
    Inventor: Darrin Leonhardt
  • Patent number: 8785868
    Abstract: An “intelligent” UV curing assembly is disclosed. The “intelligent” assembly permits automated monitoring of performance parameters, part lifetime, and inventory control of internal parts. The “intelligent” assembly includes an on lamp microprocessor. The on lamp microprocessor may be configured to recognize the internal parts, record accumulated working time of each part, and sample and process data from the plurality of “intelligent” sensors.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: July 22, 2014
    Assignee: Heraeus Noblelight Fusion UV Inc.
    Inventors: Yixin Yang, William E. Johnson, III, Pradyumna Kumar Swain, Michael Kenneth West, Charles Hudson Wood, David Xu, Darrin Leonhardt, Mahmood Gharagozloo
  • Publication number: 20140138550
    Abstract: An “intelligent” UV curing assembly is disclosed. The “intelligent” assembly permits automated monitoring of performance parameters, part lifetime, and inventory control of internal parts. The “intelligent” assembly includes an on lamp microprocessor. The on lamp microprocessor may be configured to recognize the internal parts, record accumulated working time of each part, and sample and process data from the plurality of “intelligent” sensors.
    Type: Application
    Filed: November 19, 2012
    Publication date: May 22, 2014
    Applicant: FUSION UV SYSTEMS
    Inventors: Yixin Yang, William E. Johnson, III, Pradyumna Kumar Swain, Michael Kenneth West, Charles Hudson Wood, David Xu, Darrin Leonhardt, Mahmood Gharagozloo
  • Patent number: 8507884
    Abstract: A light source having a substantially elliptical cross-section for UV curing lamp assemblies is disclosed. The light source has a pair of end sections and a central section of smaller diameter than the end sections. The end sections are each connected to the central section by a tapered section the diameter of each of which decreases from an end that mates with an end section toward an end that mates with the central section. Each of the end sections has a substantially elliptical cross-section. The central section and the tapered sections may have a substantially elliptical cross-section. The aspect ratio of the elliptical cross-section of the end sections and the central section of the light source is preferably about 2:1.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: August 13, 2013
    Assignee: Heraeus Noblelight Fusion UV Inc.
    Inventors: Pradyumna Kumar Swain, Darrin Leonhardt, David Allen Sprankle, Charles H. Wood
  • Patent number: 8357878
    Abstract: An ultraviolet (UV) LED-based lamp for UV curing lamp assemblies is disclosed. An array of UV emitting LEDs are packaged together and arranged along the length of a cylindrical lens to form a UV LED-based optical component assembly. The UV LED-based optical component assembly may be made to be modular. A UV LED lamp assembly may comprise a plurality of UV LED-based optical component assemblies arranged around a workpiece tube. The workpiece tube may be filled with an inert gas and may be made of quartz or glass. One or more curved back reflectors may be placed opposite the LED UV LED-based optical component assemblies to collect UV light escaping the workpiece tube and refocus the light to the other side of the workpiece. The UV LEDs may be arranged on a single surface or a multi-level tiered platform.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: January 22, 2013
    Assignee: Fusion UV Systems
    Inventors: Darrin Leonhardt, Charles H. Wood, Pradyumna K. Swain
  • Publication number: 20120286658
    Abstract: A modular magnetron for use in UV curing lamp assembly is disclosed. The modular magnetron includes a vacuum tube having a vacuum tube body, a top assembly, and a bottom assembly. The top assembly is configured to substantially overlay the vacuum tube. The bottom assembly is configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity. The top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.
    Type: Application
    Filed: July 25, 2012
    Publication date: November 15, 2012
    Inventor: Darrin Leonhardt
  • Patent number: 8264150
    Abstract: A modular magnetron for use in UV curing lamp assembly is disclosed. The modular magnetron includes a vacuum tube having a vacuum tube body, a top assembly, and a bottom assembly. The top assembly is configured to substantially overlay the vacuum tube. The bottom assembly is configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity. The top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: September 11, 2012
    Assignee: Fusion UV Systems, Inc.
    Inventor: Darrin Leonhardt
  • Patent number: 8251526
    Abstract: A spread primary reflector for a UV curing lamp employs a substrate that has been faceted. The facets may be produced by means of stamping, etching, or a combination of chemical-mechanical processes. The faceting randomizes the focusing effects of the primary reflector's elliptical curvature while maintaining a total directed energy output and hence a uniform irradiance of a work product. The reflector may be made of a stand-alone reflective material with a preformed faceting pattern, such as from a metal substrate and coated with an optical coating to tailor the reflective properties of the surface of the substrate.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: August 28, 2012
    Assignee: Fusion UV Systems, Inc
    Inventor: Darrin Leonhardt
  • Publication number: 20120168648
    Abstract: A light source having a substantially elliptical cross-section for UV curing lamp assemblies is disclosed. The light source has a pair of end sections and a central section of smaller diameter than the end sections. The end sections are each connected to the central section by a tapered section the diameter of each of which decreases from an end that mates with an end section toward an end that mates with the central section. Each of the end sections has a substantially elliptical cross-section. The central section and the tapered sections may have a substantially elliptical cross-section. The aspect ratio of the elliptical cross-section of the end sections and the central section of the light source is preferably about 2:1.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 5, 2012
    Inventors: Pradyumna Kumar SWAIN, Darrin LEONHARDT, David Allen SPRANKLE, Charles H. WOOD
  • Publication number: 20110308461
    Abstract: An electron beam enhanced nitriding system that passes a high-energy electron beam through nitrogen gas to form a low electron temperature plasma capable of delivering nitrogen ions and radicals to a substrate to be nitrided. The substrate can be mounted on an electrode, and the substrate can be biased and heated.
    Type: Application
    Filed: August 17, 2010
    Publication date: December 22, 2011
    Inventors: Scott G. Walton, Darrin Leonhardt, Robert A. Meger, Richard Fernsler, Christopher Muratore
  • Publication number: 20110147356
    Abstract: An ultraviolet (UV) LED-based lamp for UV curing lamp assemblies is disclosed. An array of UV emitting LEDs are packaged together and arranged along the length of a cylindrical lens to form a UV LED-based optical component assembly. The UV LED-based optical component assembly may be made to be modular. A UV LED lamp assembly may comprise a plurality of UV LED-based optical component assemblies arranged around a workpiece tube. The workpiece tube may be filled with an inert gas and may be made of quartz or glass. One or more curved back reflectors may be placed opposite the LED UV LED-based optical component assemblies to collect UV light escaping the workpiece tube and refocus the light to the other side of the workpiece. The UV LEDs may be arranged on a single surface or a multi-level tiered platform.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Inventors: Darrin Leonhardt, Charles H. Wood, Pradyumna K. Swain
  • Publication number: 20110012508
    Abstract: A modular magnetron for use in UV curing lamp assembly is disclosed. The modular magnetron includes a vacuum tube having a vacuum tube body, a top assembly, and a bottom assembly. The top assembly is configured to substantially overlay the vacuum tube. The bottom assembly is configured to substantially extend about the vacuum tube, the vacuum tube being positioned to partially protrude from the bottom assembly, the bottom assembly including a cooling assembly configured to employ a flexible clamp-type fitting about the vacuum tube body for substantially maintaining thermal and electrical conductivity. The top assembly is configured to be releasably fastened to the bottom assembly about the vacuum tube with removable fasteners.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 20, 2011
    Inventor: Darrin Leonhardt
  • Publication number: 20110002058
    Abstract: A spread primary reflector for a UV curing lamp is disclosed. The spread reflector employs a substrate that has been faceted. The facets may be produced by means of stamping, etching, or a combination of chemical-mechanical processes. The faceting randomizes the focusing effects of the primary reflector's elliptical curvature while maintaining a total directed energy output and hence a uniform irradiance of a work product. The reflector may be made of a stand-alone reflective material with a preformed faceting pattern, such as from a metal substrate and coated with an optical coating to tailor the reflective properties of the surface of the substrate.
    Type: Application
    Filed: July 1, 2009
    Publication date: January 6, 2011
    Inventor: Darrin Leonhardt
  • Publication number: 20090314633
    Abstract: This invention provides a means to deposit thin films and coatings on a substrate using an electron beam generated plasma. The plasma can be used as an ion source in sputter applications, where the ions are used to liberate material from a target surface which can then condense on a substrate to form the film or coating. Alternatively, the plasma may be combined with existing deposition sources including those based on sputter or evaporation techniques. In either configuration, the plasma serves as a source of ion and radical species at the growing film surface in reactive deposition processes. The electron beam large area deposition system (EBELADS) is a new approach to the production of thin films or coatings up to and including several square meters.
    Type: Application
    Filed: August 27, 2009
    Publication date: December 24, 2009
    Applicant: The Gov. of the USA, as represented by the Secretary of the Navy
    Inventors: Scott G. Walton, Darrin Leonhardt, Robert A. Meger, Richard Fernsler, Christopher Muratore
  • Publication number: 20090032143
    Abstract: An electron beam enhanced nitriding system that passes a high-energy electron beam through nitrogen gas to form a low electron temperature plasma capable of delivering nitrogen ions and radicals to a substrate to be nitrided. The substrate can be mounted on an electrode, and the substrate can be biased and heated.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 5, 2009
    Inventors: Scott G Walton, Darrin Leonhardt, Robert A. Meger, Richard F. Fernsler, Christopher Muratore
  • Publication number: 20080087539
    Abstract: A method and system for material processing employing extracting equivalent fluxes of positive and negative ions at two surfaces from an ion-ion plasma without substantially altering the plasma potential. The extraction is achieved by applying a continuously applied bias to the substrate being processed, in order to attract the ions to the substrate surface to facilitate materials processing such as etching, deposition and chemical modification at the surface. The continuously applied bias is applied via a power source coupled to the plate, also referred to as a stage or chuck, holding the substrate.
    Type: Application
    Filed: October 9, 2007
    Publication date: April 17, 2008
    Inventors: Scott G. Walton, Darrin Leonhardt, Richard F. Fernsler
  • Patent number: H2209
    Abstract: A large area metallization pretreatment and surface activation system that uses an electron beam-produced plasma capable of delivering substantial ion and radical fluxes at low temperatures over large areas of an organic plastic or polymer material. The ion and radical fluxes physically and chemically alter the surface structure of the organic plastic or polymer material thereby improving the ability of a film to adhere to the material.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: February 5, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Darrin Leonhardt, Scott G. Walton, Robert A. Meger, Christopher Muratore
  • Patent number: H2212
    Abstract: An ion-ion plasma source, that features a processing chamber containing a large concentration of halogen or halogen-based gases. A second chamber is coupled to the processing chamber and features an electron source which produces a high energy electron beam. The high energy electron beam is injected into the processing chamber where it is shaped and confined by a means for shaping and confining the high energy electron beam. The high energy electron beam produced in the second chamber when injected into the processing chamber ionizes the halogen gas creating a dense, ion-ion plasma in the processing chamber that is continuous in time. A method for creating an ion-ion plasma continuous in time.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 1, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Scott G. Walton, Robert Meger, Richard Fernsler, Darrin Leonhardt