Patents by Inventor Richard Shaun Welches

Richard Shaun Welches 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: 7929579
    Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: April 19, 2011
    Assignee: Cynosure, Inc.
    Inventors: Daniel Hohm, Mirko Mirkov, Richard Shaun Welches, Rafael Armando Sierra
  • Publication number: 20100296531
    Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device positioned along the optical axis of the resonator.
    Type: Application
    Filed: January 4, 2010
    Publication date: November 25, 2010
    Applicant: Cynosure, Inc.
    Inventors: Daniel Hohm, Mirko Mirkov, Richard Shaun Welches, Rafael Armando Sierra
  • Publication number: 20100195680
    Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device (e.g., a Pockels cell) positioned along the optical axis of the resonator.
    Type: Application
    Filed: August 3, 2009
    Publication date: August 5, 2010
    Applicant: Cynosure, Inc.
    Inventors: Rafael Armando Sierra, Mirko Mirkov, Richard Shaun Welches
  • Publication number: 20090292277
    Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device (e.g., a Pockels cell) positioned along the optical axis of the resonator.
    Type: Application
    Filed: August 3, 2009
    Publication date: November 26, 2009
    Applicant: Cynosure, Inc.
    Inventors: Rafael Armando Sierra, Mirko Mirkov, Richard Shaun Welches
  • Patent number: 7586957
    Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device (e.g., a Pockels cell) positioned along the optical axis of the resonator.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: September 8, 2009
    Assignee: Cynosure, Inc
    Inventors: Rafael Armando Sierra, Mirko Mirkov, Richard Shaun Welches
  • Publication number: 20090076488
    Abstract: A laser surgical method is disclosed including: providing a laser surgical device including a handpiece including: an optical delivery component that transmits laser energy from a source to a treatment volume; and an accelerometer configured to provide information indicative of the position of the handpiece. The method includes using the handpiece to transmit laser energy from the source to a plurality of positions within the treatment volume; using the accelerometer, providing information indicative of the position of the handpiece; determining information indicative of an amount of energy delivered at each of the plurality of positions within the treatment volume based on the information indicative of the position of the handpiece, and displaying a graphical representation indicative of the amount of energy delivered at each of the plurality of positions within the treatment volume.
    Type: Application
    Filed: June 9, 2008
    Publication date: March 19, 2009
    Inventors: Richard Shaun WELCHES, James Henry Boll, Mirko Mirkov, Rafael Armando Sierra, Daniel Hohm
  • Publication number: 20090076489
    Abstract: A laser surgical method is disclosed including: providing a laser surgical device including a handpiece including: an optical delivery component that transmits laser energy from a source to a treatment volume; and an accelerometer configured to provide information indicative of the position of the handpiece. The method includes using the handpiece to transmit laser energy from the source to a plurality of positions within the treatment volume; using the accelerometer, providing information indicative of the position of the handpiece; determining information indicative of an amount of energy delivered at each of the plurality of positions within the treatment volume based on the information indicative of the position of the handpiece, and displaying a graphical representation indicative of the amount of energy delivered at each of the plurality of positions within the treatment volume.
    Type: Application
    Filed: June 9, 2008
    Publication date: March 19, 2009
    Inventors: Richard Shaun Welches, James Henry Boll, Mirko Mirkov, Rafael Armando Sierra, Daniel Hohm
  • Publication number: 20090024023
    Abstract: An apparatus is disclosed for monitoring a thermal surgical procedure including a thermal camera for monitoring temperature at a plurality of locations within at least a portion of a surgical field undergoing thermal surgical treatment and generating a series of thermal images based on said monitoring, a processor for processing the thermal images, and a display for displaying, in real time, a series of display images indicative of temperature at the plurality of positions.
    Type: Application
    Filed: June 9, 2008
    Publication date: January 22, 2009
    Inventors: Richard Shaun WELCHES, James Henry Boll
  • Publication number: 20090018531
    Abstract: A surgical probe apparatus is disclosed including a handpiece which includes an optical system configured to deliver therapeutic light to provide treatment of an area of tissue; and at least one suction port configured to remove a byproduct of the treatment from the area of tissue in response to an applied vacuum.
    Type: Application
    Filed: June 9, 2008
    Publication date: January 15, 2009
    Inventors: Richard Shaun WELCHES, James Henry BOLL
  • Publication number: 20090012511
    Abstract: A surgical probe is disclosed which includes a stiff treatment waveguide extending between a first end and a second end, the first end being adapted for connection to a handpiece, the second end being adapted for insertion through an incision into an area of tissue. The treatment waveguide in configured to receive treatment light from the handpiece at the first end, transmit the light to the second end, and emit the light from the second end into a portion of the tissue proximal the second end. The treatment waveguide is adapted to penetrate through a portion of the area of tissue in response to pressure applied to the handpiece.
    Type: Application
    Filed: June 9, 2008
    Publication date: January 8, 2009
    Inventors: Richard Shaun Welches, James Henry Boll
  • Publication number: 20080031288
    Abstract: Apparatuses and methods are disclosed for applying laser energy having desired pulse characteristics, including a sufficiently short duration and/or a sufficiently high energy for the photomechanical treatment of skin pigmentations and pigmented lesions, both naturally-occurring (e.g., birthmarks), as well as artificial (e.g., tattoos). The laser energy may be generated with an apparatus having a resonator with the capability of switching between a modelocked pulse operating mode and an amplification operating mode. The operating modes are carried out through the application of a time-dependent bias voltage, having waveforms as described herein, to an electro-optical device (e.g., a Pockels cell) positioned along the optical axis of the resonator.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Applicant: Cynosure, Inc.
    Inventors: Rafael Armando Sierra, Mirko Mirkov, Richard Shaun Welches
  • Patent number: 6969922
    Abstract: The invention in one embodiment is an improved variable speed engine/generator set with an integrated power conditioning system and control method including load shedding to generate high quality AC power with improved fuel efficiency and reduced emissions. The variable speed generator control scheme allows for load adaptive speed control of engine and generator field. The transformerless power inverter topology and control method provides the necessary output frequency, voltage and/or current waveform regulation, harmonic distortion rejection, and provides for single phase, or unbalanced loading.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 29, 2005
    Assignee: Youtility, INC
    Inventors: Richard Shaun Welches, Daniel P. Hohm, Jian Wen
  • Patent number: 6879053
    Abstract: The invention in the simplest form is an improved variable speed engine/generator set with an integrated power conditioning system and control method, used to generate high quality AC power with optimum fuel efficiency and reduced emissions. The variable speed generator control scheme allows for load adaptive speed control of engine and generator field. The transformerless power inverter topology and control method provides the necessary output frequency, voltage and/or current waveform regulation, harmonic distortion rejection, and provides for single phase, or unbalanced loading.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: April 12, 2005
    Assignee: Youtility, Inc.
    Inventors: Richard Shaun Welches, Daniel P. Hohm, Jian Wen, Kevin E LeRow, Richard Griessel, Thomas O'Reilly
  • Publication number: 20040084965
    Abstract: The invention in the simplest form is an improved hybrid power converter with uninterruptible power supply (UPS) and power quality capabilities as well as an integrated variable speed power source and control method that is used to generate high quality, uninterruptible AC power utilizing fewer batteries and operating at optimum fuel efficiency and with reduced emissions. The variable speed generator control scheme allows for load adaptive speed control of a power source such as an engine and generator. The transformerless hybrid power converter topology and control method provides the necessary output frequency, voltage and/or current waveform regulation, harmonic distortion rejection, and provides for single-phase or unbalanced loading. The transformerless hybrid power converter also provides inline or offline UPS capability, line voltage and/or frequency sag and surge compensation, peak shaving capability, VAR compensation and active harmonic filtering.
    Type: Application
    Filed: October 22, 2003
    Publication date: May 6, 2004
    Inventors: Richard Shaun Welches, Daniel P. Hohm, Jian Wen, Kevin E. LeRow, Richard Griessel
  • Patent number: 6654261
    Abstract: The invention in the simplest form is a power conditioning and inverting system for improved and efficient power generation. In particular, the present invention is a modulated dc link scheme that dramatically reduces the switching frequency ripple across the PWM output filter inductor and provides cost, size, and weight reductions, as well as efficiency enhancements. In a preferred embodiment of the present invention, the DC-DC converter control takes a feedback signal proportional to the inverter output voltage. This feedback is “summed” into the primary DC-DC volts command thereby causing the dc bus/link voltage to vary at a multiple of the output fundamental frequency causing the DC link to become a signal at a fundamental frequency voltage with a dc offset. The tooth modulator DC supply tracks the AC output voltage, reducing the difference between the applied DC volts and the AC output volts, thereby reducing inductor core losses.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: November 25, 2003
    Assignee: Youtility, INC
    Inventors: Richard Shaun Welches, Richard E Griessel, Peter Beckedahl, Karl Bond
  • Patent number: 6567283
    Abstract: The invention in the simplest form is an improved AC inductor circuit design that is ideal for single boost, or split phase dual boost topologies, and other poly-phase systems improving input power factor and total harmonic distortion. The implementation is efficient, reliable, and flexible, utilizing a wide range of input voltages and currents (including synthesized input voltage waveforms other than sinusoids), and variable frequency voltage sources such as flywheels or micro-turbines, switches, such as IGBT, MOSFET, in combination with AC inductors and typical high frequency rectifier diodes, high frequency rectifiers, or even some line frequency rectifier diodes. The present invention is applicable to power supplies, motor drives, power conditioners, power generation equipment, hybrid power conditioning and distribution equipment, appliances, and flywheels.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: May 20, 2003
    Assignee: Youtility Inc.
    Inventor: Richard Shaun Welches
  • Publication number: 20030080741
    Abstract: Techniques for detecting an island in a system including a node that is operatively coupled to a primary power source (e.g., grid) and one or more distributed power generation sources are disclosed. In one embodiment, a current pulse is included in the output of a distributed power source. The grid voltage is monitored at the node to determine if a pulse-related disturbance occurs. If the grid is present, no pulse-related disturbance will manifest. If grid is down, then a pulse-related disturbance will manifest. Detection of the pulse-related disturbance is used to signal island detection.
    Type: Application
    Filed: October 25, 2002
    Publication date: May 1, 2003
    Inventors: Kevin E. LeRow, Richard Shaun Welches
  • Publication number: 20020181258
    Abstract: The invention in the simplest form is an improved AC inductor circuit design that is ideal for single boost, or split phase dual boost topologies, and other poly-phase systems improving input power factor and total harmonic distortion. The implementation is efficient, reliable, and flexible, utilizing a wide range of input voltages and currents (including synthesized input voltage waveforms other than sinusoids), and variable frequency voltage sources such as flywheels or micro-turbines, switches, such as IGBT, MOSFET, in combination with AC inductors and typical high frequency rectifier diodes, high frequency rectifiers, or even some line frequency rectifier diodes. The present invention is applicable to power supplies, motor drives, power conditioners, power generation equipment, hybrid power conditioning and distribution equipment, appliances, and flywheels.
    Type: Application
    Filed: April 1, 2002
    Publication date: December 5, 2002
    Inventor: Richard Shaun Welches
  • Patent number: 6404655
    Abstract: The invention in the simplest form is an improved transformerless 3 phase power inverter topology and control method for power distribution systems. This 3 phase power inverter system provides the necessary output voltage and current waveform regulation, harmonic distortion rejection, very low output impedance, and ultra low DC offset of the output AC power, even when exposed to a high magnitude of the non-linear, single phase, or the unbalanced loading.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: June 11, 2002
    Assignee: Semikron, Inc.
    Inventor: Richard Shaun Welches