Patents by Inventor James W. Schmitkons

James W. Schmitkons 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).

  • Patent number: 8410410
    Abstract: A microwave-excited ultraviolet lamp system includes a microwave chamber supplied with cooling air from an air source. At least one of a pressure sensor or a temperature sensor is positioned within the system to sense a pressure associated with the flow of cooling air or a temperature of the lamp system. A control receives a signal from the sensor and is operable to adjust the flow of cooling air from the source to obtain a desired cooling air flow rate.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: April 2, 2013
    Assignee: Nordson Corporation
    Inventors: Carl A. Bretmersky, James W. Schmitkons
  • Patent number: 7952289
    Abstract: An ultraviolet lamp system for irradiating a substrate includes a magnetron and a memory physically attached to the magnetron. An electrodeless lamp is configured to emit ultraviolet light when excited by microwave energy generated from the magnetron. Main control circuitry is operable to read and write operational data associated with the magnetron to the memory. The ultraviolet lamp system is operated by generating microwave energy from the magnetron. A plasma within an electrodeless lamp is excited with the microwave energy to emit ultraviolet light. Operational data associated with the magnetron is tracked and written to the memory associated with the magnetron.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 31, 2011
    Assignee: Nordson Corporation
    Inventors: Carl A. Bretmersky, James W. Schmitkons
  • Patent number: 7923706
    Abstract: An ultraviolet radiation curing system is disclosed for treating a substrate, such as fiber optic cable or silicone tubing. The system comprises a processing chamber allowing transport of a continuous piece of substrate to be treated. As the substrate moves through the processing chamber, ultraviolet radiation from a plasma lamp activated by a microwave generator treats the surface of the substrate. The system comprises two elliptical reflectors of different sizes so that larger diameter substrates may be efficiently treated with ultraviolet radiation. The system may also comprise an ultraviolet-transmissive conduit enclosing the substrate and split into a first portion and a second portion, where the second portion is movable from the first portion to open the conduit and allow insertion or alignment of the substrate within the conduit and processing chamber.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: April 12, 2011
    Assignee: Nordson Corporation
    Inventors: Robert Brassell, Edward C. McGhee, James W. Schmitkons
  • Patent number: 7863834
    Abstract: An ultraviolet lamp assembly and corresponding methods is operable to generate ultraviolet light for irradiating a substrate. The lamp assembly includes a magnetron, an electrodeless lamp for emitting ultraviolet light when excited by microwave radiation generated from the magnetron, and a power control circuit arrangement configured to control an output power of the microwave radiation generated by the magnetron corresponding to the intensity of ultraviolet light produced by the lamp. A first control loop of the power control circuit is configured to regulate an input current to the magnetron based upon an input current setting associated with a desired intensity of UV light output of the lamp and a second control loop coupled to the first control loop configured to adjust the input current setting used by the first control loop to regulate the input current to the magnetron based upon an input power to the magnetron, which is proportional to the intensity of UV light output from the lamp.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: January 4, 2011
    Assignee: Nordson Corporation
    Inventors: Carl A. Bretmersky, James W. Schmitkons
  • Patent number: 7723992
    Abstract: A detector for an ultraviolet lamp system of the type having a microwave generator includes a first circuit that is configured to detect the microwave energy generated from the microwave generator. The first circuit includes at least one radiation sensitive component capable of failing upon exposure to an excessive amount of microwave energy. A second circuit is coupled to the first circuit and configured to intermittently test whether the radiation sensitive component has failed. An ultraviolet lamp system includes the detector. An associated method includes monitoring the microwave energy through the first circuit including at least one radiation sensitive component capable of failing upon exposure to an excessive amount of microwave energy and testing the radiation sensitive component to determine whether the radiation sensitive component has failed.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: May 25, 2010
    Assignee: Nordson Corporation
    Inventors: James W. Schmitkons, Carl A. Bretmersky
  • Publication number: 20100084574
    Abstract: An ultraviolet radiation curing system is disclosed for treating a substrate, such as fiber optic cable or silicone tubing. The system comprises a processing chamber allowing transport of a continuous piece of substrate to be treated. As the substrate moves through the processing chamber, ultraviolet radiation from a plasma lamp activated by a microwave generator treats the surface of the substrate. The system comprises two elliptical reflectors of different sizes so that larger diameter substrates may be efficiently treated with ultraviolet radiation. The system may also comprise an ultraviolet-transmissive conduit enclosing the substrate and split into a first portion and a second portion, where the second portion is movable from the first portion to open the conduit and allow insertion or alignment of the substrate within the conduit and processing chamber.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Applicant: NORDSON CORPORATION
    Inventors: Robert Brassell, Edward C. McGhee, James W. Schmitkons
  • Publication number: 20090160345
    Abstract: An ultraviolet lamp system for irradiating a substrate includes a magnetron and a memory physically attached to the magnetron. An electrodeless lamp is configured to emit ultraviolet light when excited by microwave energy generated from the magnetron. Main control circuitry is operable to read and write operational data associated with the magnetron to the memory. The ultraviolet lamp system is operated by generating microwave energy from the magnetron. A plasma within an electrodeless lamp is excited with the microwave energy to emit ultraviolet light. Operational data associated with the magnetron is tracked and written to the memory associated with the magnetron.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: NORDSON CORPORATION
    Inventors: Carl A. Bretmersky, James W. Schmitkons
  • Publication number: 20090101829
    Abstract: A light sensor for an ultraviolet lamp system of the type having an electrodeless lamp excited by microwave energy includes a detector configured to detect light generated by the electrodeless lamp. An elongated channel is configured to be interposed between the detector and the electrodeless lamp. The elongated channel has a first aperture and a second aperture defined at opposing ends thereof. The first aperture is configured to receive light generated by the electrodeless lamp. The second aperture is positioned proximate the detector to transmit at least a portion of light received in the first aperture to the detector.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Applicant: NORDSON CORPORATION
    Inventors: James W. Schmitkons, James C. Smith, Paul Weyandt
  • Patent number: 7497723
    Abstract: An electrical connector includes a receptacle and a plug. The receptacle includes a tubular housing having an axial bore and at least one electrical contact within the bore. The plug is received in the bore of the receptacle housing and includes a tubular core having an axial bore and at least one electrical contact that engages the electrical contact on the receptacle when the plug is coupled to the receptacle. The plug further includes a rotatable collar for securing the plug to the receptacle. A visual indicator on at least one of the plug core or the receptacle housing is visible through a window in the collar to provide a visual indication when the plug is fully coupled to the receptacle.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: March 3, 2009
    Assignee: Nordson Corporation
    Inventors: Robert Brassell, James W. Schmitkons
  • Publication number: 20090001990
    Abstract: A detector for an ultraviolet lamp system of the type having a microwave generator includes a first circuit that is configured to detect the microwave energy generated from the microwave generator. The first circuit includes at least one radiation sensitive component capable of failing upon exposure to an excessive amount of microwave energy. A second circuit is coupled to the first circuit and configured to intermittently test whether the radiation sensitive component has failed. An ultraviolet lamp system includes the detector. An associated method includes monitoring the microwave energy through the first circuit including at least one radiation sensitive component capable of failing upon exposure to an excessive amount of microwave energy and testing the radiation sensitive component to determine whether the radiation sensitive component has failed.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: NORDSON CORPORATION
    Inventors: James W. Schmitkons, Carl A. Bretmersky
  • Publication number: 20090001901
    Abstract: An ultraviolet lamp assembly and corresponding methods is operable to generate ultraviolet light for irradiating a substrate.. The lamp assembly includes a magnetron, an electrodeless lamp for emitting ultraviolet light when excited by microwave radiation generated from the magnetron, and a power control circuit arrangement configured to control an output power of the microwave radiation generated by the magnetron corresponding to the intensity of ultraviolet light produced by the lamp. A first control loop of the power control circuit is configured to regulate an input current to the magnetron based upon an input current setting associated with a desired intensity of UV light output of the lamp and a second control loop coupled to the first control loop configured to adjust the input current setting used by the first control loop to regulate the input current to the magnetron based upon an input power to the magnetron, which is proportional to the intensity of UV light output from the lamp.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Applicant: NORDSON CORPORATION
    Inventors: Carl A. Bretmersky, James W. Schmitkons
  • Publication number: 20080311779
    Abstract: An electrical connector includes a receptacle and a plug. The receptacle includes a tubular housing having an axial bore and at least one electrical contact within the bore. The plug is received in the bore of the receptacle housing and includes a tubular core having an axial bore and at least one electrical contact that engages the electrical contact on the receptacle when the plug is coupled to the receptacle. The plug further includes a rotatable collar for securing the plug to the receptacle. A visual indicator on at least one of the plug core or the receptacle housing is visible through a window in the collar to provide a visual indication when the plug is fully coupled to the receptacle.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 18, 2008
    Applicant: NORDSON CORPORATION
    Inventors: Robert Brassell, James W. Schmitkons
  • Patent number: 7462978
    Abstract: An apparatus (10) for generating ultraviolet radiation includes a pair of magnetrons (12) coupled to a longitudinally extending microwave chamber (14) for generating standing microwave energy waves within the chamber (14). Microwave energy from the magnetrons (12) is directly coupled to the microwave chamber (14) without the use of coupling slots, antennas or other coupling structures. A longitudinally extending electrodeless plasma bulb (20) is mounted within the microwave chamber (14) and is operable to emit ultraviolet radiation (24) in response to excitation by the microwave energy generated by the pair of magnetrons (12). The microwave chamber (14) includes a pair of longitudinally extending tuning walls (42) positioned on opposite sides of the plasma lamp bulb (20) and capable of overlapping the standing microwave energy waves generally along the longitudinal length of the plasma bulb (20).
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: December 9, 2008
    Assignee: Nordson Corporation
    Inventors: James W. Schmitkons, James M. Borsuk
  • Publication number: 20080017637
    Abstract: A microwave-excited ultraviolet lamp system includes a microwave chamber supplied with cooling air from an air source. At least one of a pressure sensor or a temperature sensor is positioned within the system to sense a pressure associated with the flow of cooling air or a temperature of the lamp system. A control receives a signal from the sensor and is operable to adjust the flow of cooling air from the source to obtain a desired cooling air flow rate.
    Type: Application
    Filed: July 12, 2006
    Publication date: January 24, 2008
    Applicant: NORDSON CORPORATION
    Inventors: Carl A. Bretmersky, James W. Schmitkons
  • Patent number: 7109669
    Abstract: A radiation generating system for treating a coating on a substrate. A high voltage circuit provides power to a microwave generator that, in turn, supplies microwave radiation to drive a lamp. A current limiting device is connected between the high voltage circuit and the microwave generator, and a fault detector is connected to the high voltage circuit for providing an error signal in response to excess current being supplied to the microwave generator. A control is operative to interrupt a supply of AC power to the high voltage circuit in response to the error signal.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: September 19, 2006
    Assignee: Nordson Corporation
    Inventors: Carl Bretmersky, James W. Schmitkons, Jay Wolf
  • Patent number: 7077547
    Abstract: An ultraviolet lamp assembly includes an elongate lamp bulb, a central reflector mounted above the bulb and side reflector panels mounted on opposite sides of the central reflector panel. A first air gap is located between the first side reflector panel and the central reflector panel when the first and second side reflector panels are in the open position. A second air gap is located between the second side reflector panel and the central reflector panel when the first and second side reflector panels are in the open position. An air moving device is configured to direct cooling air downwardly through the perforations at the upper portion of the bulb and downwardly through the first and second air gaps at the lower portion of the bulb.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: July 18, 2006
    Assignee: Nordson Corporation
    Inventors: James W. Schmitkons, Jan L. Shanaberger
  • Patent number: 6952082
    Abstract: A microwave excited ultraviolet lamp system having a single electrical cable that supplies operating voltages from a power supply to a lamp head. The single electrical cable may provide high voltage to a magnetron of the lamp head and a lesser voltage to an internal blower of the lamp head. The electrical cable may incorporate conductors for transferring communications signals between the power supply and sensors associated with the lamp head.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: October 4, 2005
    Assignee: Nordson Corporation
    Inventors: James W. Schmitkons, Carl A. Bretmersky, Jay Wolf
  • Patent number: 6905230
    Abstract: A lamp retainer for a UV lamp system includes a retainer bracket having a registration surface configured to engage a UV lamp to thereby facilitate accurate and repeatable positioning of the lamp in a lamp housing. The lamp retainer further comprises a retainer clip couplable to the retainer bracket and configured to bias a UV lamp toward the registration surface. The retainer clip facilitates removal and installation of the UV lamp in the lamp housing.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: June 14, 2005
    Assignee: Nordson Corporation
    Inventor: James W. Schmitkons
  • Patent number: 6831419
    Abstract: An exhaust system for use with a microwave excited ultraviolet lamp system is provided to receive cooling air emitted from the lamp system and to contain and direct the cooling air so as not to contact a substrate being irradiated with ultraviolet light. A lens, such as a quartz lens, is supported by the exhaust duct to transmit the ultraviolet light emitted from the lamp system toward the substrate.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: December 14, 2004
    Assignee: Nordson Corporation
    Inventors: James W. Schmitkons, James M. Borsuk, Jan L. Shanaberger
  • Publication number: 20040239256
    Abstract: An exhaust system for use with a microwave excited ultraviolet lamp system is provided to receive cooling air emitted from the lamp system and to contain and direct the cooling air so as not to contact a substrate being irradiated with ultraviolet light. A lens, such as a quartz lens, is supported by the exhaust duct to transmit the ultraviolet light emitted from the lamp system toward the substrate.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Applicant: NORDSON CORPORATION
    Inventors: James W. Schmitkons, James M. Borsuk, Jan L. Shanaberger