Patents by Inventor Richard L. Black

Richard L. Black 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: 20210137544
    Abstract: A surgical instrument, has an end effector that includes an ultrasonic blade, and a clamp arm that moves relative to the ultrasonic blade from an opened position toward an intermediate position and a closed position. The clamp arm is offset from the ultrasonic blade to define a predetermined gap in the intermediate position between the opened position and the closed position. A clamp arm actuator connects to the clamp arm and moves from an opened configuration to a closed configuration to direct the clamp arm from the opened position toward the intermediate position and the closed position. A spacer connects with the clamp arm to inhibit movement of the clamp arm from the intermediate position toward the closed position for maintaining the predetermined gap between the clamp arm and the ultrasonic blade.
    Type: Application
    Filed: December 21, 2020
    Publication date: May 13, 2021
    Inventors: Ryan M. Asher, Brian D. Black, John E. Brady, Joseph Dennis, Geni M. Giannotti, Bryce L. Heitman, Timothy S. Holland, Joseph E. Hollo, Andrew Kolpitcke, Amy M. Krumm, Jason R. Lesko, Matthew C. Miller, David A. Monroe, Ion V. Nicolaescu, Rafael J. Ruiz Ortiz, Matthew S. Schneider, Richard C. Smith, Shawn C. Snyder, Sarah A. Worthington, Monica L. Rivard, Fajian Zhang
  • Patent number: 7952300
    Abstract: A power supply with a capacitor providing an output voltage. A switch is connected between a voltage source and the capacitor. A control terminal of the switch has a switching threshold. The switch conducts a charging current from the voltage source into the capacitor. A control circuit controls the switch on when the voltage source is below a predetermined level and off when the voltage source is above the level. A control voltage supply circuit provides a control supply voltage. A control terminal voltage for the switch derived from the control supply voltage with a magnitude in excess of the switching threshold drives the switch on in a saturated region of operation.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: May 31, 2011
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Jamie J. Steffie, Richard L. Black
  • Patent number: 7859815
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: December 28, 2010
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L Black, Benjamin Aaron Johnson, Shawn L. Leichliter, Robert C. Newman, Jr., Chenming Wu
  • Publication number: 20100231055
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared.
    Type: Application
    Filed: April 5, 2010
    Publication date: September 16, 2010
    Applicant: LUTRON ELECTRONICS CO., INC.
    Inventors: Richard L. Black, Benjamin Aaron Johnson, Shawn L. Leichliter, Robert C. Newman, JR., Chenming Wu
  • Patent number: 7781919
    Abstract: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a load control module for a lighting control system operable to start up a plurality of the lighting loads in sequence to reduce stress on the power distribution system. The lighting loads are each turned on as part of a startup sequence at predetermined times after an output voltage of the power distribution system has stabilized. The lighting control module is operable to wait for a predetermined amount of time for the startup sequence to begin before turning on the lighting loads.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 24, 2010
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Joel Hnatow, Neil Orchowski, Jason P. Petrella, Brian R. Valenta
  • Patent number: 7741732
    Abstract: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a method of configuring a lighting control system to power up a plurality of the lighting loads in sequence to reduce stress on the power distribution system. The lighting control system includes a plurality of load control devices for controlling the electrical loads. The method comprising the steps of enabling a startup-delay mode in the load control devices, and determining a startup sequence having a plurality of event times for the electrical loads to turn on after the power distribution system has stabilized. A graphical user interface may be used to create a database defining the operation of the startup sequence.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: June 22, 2010
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Joel Hnatow, Neil Orchowski, Jason P. Petrella, Brian R. Valenta
  • Publication number: 20090206983
    Abstract: A radio-frequency (RF) load control system allows for the expedient transmission of subsequent digital messages to one or more recipients via an RF communication link. The control system comprises at least one load control device for controlling the amount of power delivered to an electrical load in response to a received digital message. Each control device of the load control system is operable to interrupt the propagation of a first digital message to transmit a second digital message in response to determining that the second digital message has a high priority than the first digital message. For example, an originating control device may transmit first and second digital messages in response to a press and a release of an actuator, respectively, and may interrupt the propagation of the first digital message to transmit the second digital message if the first digital message is irrelevant in view of the second digital message.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 20, 2009
    Applicant: LUTRON ELECTRONICS CO., INC.
    Inventors: Galen Edgar Knode, Daniel Curtis Raneri, Richard L. Black, Jordan Henry Crafts
  • Patent number: 7566987
    Abstract: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a lighting control system operable to power up a plurality of the lighting loads in sequence to reduce stress on the power distribution system. The lighting loads are each turned on as part of a startup sequence at predetermined times after an output voltage of the power distribution system has stabilized. The lighting control system is operable to begin the startup sequence in response to receiving a control signal representative that the power distribution system has stabilized. The lighting loads are each controlled by a lighting control module, which is operable to wait for a predetermined amount of time for the startup sequence to begin before turning on the lighting loads.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: July 28, 2009
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Joel Hnatow, Neil Orchowski, Jason P. Petrella, Brian R. Valenta
  • Patent number: 7542258
    Abstract: An overcurrent protection circuit for a power switching transistor wherein the power switching transistor has a control electrode and two main electrodes, the circuit comprising a circuit including a protection switch for sensing the rate of change of voltage with respect to time at one of the main electrodes of the power switching transistor and for controlling the protection switch to remove a control signal to the control electrode of the power switching transistor to turn off the power switching transistor if the rate of change exceeds a predefined value.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: June 2, 2009
    Assignee: Lutron Electronics Co., Inc.
    Inventor: Richard L. Black
  • Publication number: 20090115345
    Abstract: A power supply circuit comprising a charge storage capacitor having a first capacitor terminal adapted to provide a power supply voltage of the power supply and a second capacitor terminal coupled to a circuit common; a first switching device having a first switching terminal adapted to be connected to a voltage source, a second switching terminal operatively coupled to the first capacitor terminal of the charge storage capacitor, and a control terminal, the first switching device characterized by a control terminal switching threshold voltage, the first switching device adapted to conduct a charging current from the first switching terminal to the second switching terminal and into the charge storage capacitor; a control circuit controlling an on/off operation of the first switching device whereby the first switching device is operable to turn on when the magnitude of the voltage of the voltage source is below a predetermined level and turn off when the magnitude of the voltage of the voltage source is above
    Type: Application
    Filed: October 22, 2008
    Publication date: May 7, 2009
    Applicant: LUTRON ELECTRONICS CO., INC.
    Inventors: Jamie J. Steffie, Richard L. Black
  • Patent number: 7480128
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. The system may have a high efficiency switching type power supply in parallel with a low frequency controllably conductive device. A control circuit may control the controllably conductive device. The control circuit may switch from the two wire mode of operation to the three wire mode of operation upon the detection of a zero cross detection signal. A detector circuit may be used to detect the presence of an output signal from a zero cross detector. Two separate zero cross detectors may be used such that timing information can be collected in both two and three wire installations. Both zero cross detectors may be monitored and used to automatically configure the electronic control.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 20, 2009
    Assignee: Lutron Electronics Co., Inc.
    Inventor: Richard L. Black
  • Patent number: 7446486
    Abstract: A method of providing power to an electronic circuit in a two wire dimmer connecting a hot line of an AC network to a lamp load, the method comprising obtaining power from the two wire dimmer during regions of an AC waveform formed across a portion of a circuit of the dimmer when a phase cut switching device of the dimmer providing power to the lamp load is substantially off; driving a switching device providing charging current to a charge storage capacitor on in a saturated region of operation of the switching device when a voltage from a voltage source developed in the dimmer from the AC waveform is less than a predetermined level, and turning the switching device off when the voltage is above the predetermined level; and providing a voltage across the charge storage device as an output voltage.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: November 4, 2008
    Assignee: Lutron Electronics Co., Ltd.
    Inventors: Jamie J Steffie, Richard L Black
  • Patent number: 7358627
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: April 15, 2008
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Stephen Spencer Thompson
  • Publication number: 20080067959
    Abstract: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a method of configuring a lighting control system to power up a plurality of the lighting loads in sequence to reduce stress on the power distribution system. The lighting control system includes a plurality of load control devices for controlling the electrical loads. The method comprising the steps of enabling a startup-delay mode in the load control devices, and determining a startup sequence having a plurality of event times for the electrical loads to turn on after the power distribution system has stabilized. A graphical user interface may be used to create a database defining the operation of the startup sequence.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: Lutron Electronics Company, Inc.
    Inventors: Richard L. Black, Joel Hnatow, Neil Orchowski, Jason P. Petrella, Brian R. Valenta
  • Publication number: 20080067954
    Abstract: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a load control module for a lighting control system operable to start up a plurality of the lighting loads in sequence to reduce stress on the power distribution system. The lighting loads are each turned on as part of a startup sequence at predetermined times after an output voltage of the power distribution system has stabilized. The lighting control module is operable to wait for a predetermined amount of time for the startup sequence to begin before turning on the lighting loads.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Joel Hnatow, Neil Orchowski, Jason P. Petrella, Brian R. Valenta
  • Publication number: 20080067871
    Abstract: Power distribution systems that have a limited peak power capability or a high source impedance, such as site supply generators, are often susceptible to abnormal operation in response to the current drawn at power up from the loads connected to the power distribution system. The present invention provides a lighting control system operable to power up a plurality of the lighting loads in sequence to reduce stress on the power distribution system. The lighting loads are each turned on as part of a startup sequence at predetermined times after an output voltage of the power distribution system has stabilized. The lighting control system is operable to begin the startup sequence in response to receiving a control signal representative that the power distribution system has stabilized. The lighting loads are each controlled by a lighting control module, which is operable to wait for a predetermined amount of time for the startup sequence to begin before turning on the lighting loads.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: Lutron Electronics Company, Inc.
    Inventors: Richard L. Black, Joel Hnatow, Neil Orchowski, Jason P. Petrella, Brian R. Valenta
  • Patent number: 7342764
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: March 11, 2008
    Assignee: Lutron Electronics Co., Inc.
    Inventor: Richard L. Black
  • Patent number: 7091672
    Abstract: A power supply circuit comprising a first switching transistor having a control terminal and a control terminal switching threshold and that charges current from a voltage source into a charge storage capacitor, a control circuit controlling the on/off operation of the switching transistor whereby the switching transistor is turned on when the voltage of the voltage source is below a predetermined level and turned off when the voltage of the voltage source is above the predetermined level, a control voltage supply circuit providing a control voltage to the control terminal of the switching transistor substantially in excess of the switching threshold when the voltage of the voltage source is below the predetermined voltage thereby to drive the switching transistor on in a saturated region of operation; and a charge storage capacitor for providing an output voltage of the power supply.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: August 15, 2006
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Jamie J. Steffie, Richard L. Black
  • Patent number: 7005762
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared.
    Type: Grant
    Filed: April 8, 2003
    Date of Patent: February 28, 2006
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Graham Christensen, Benjamin Aaron Johnson, Shawn L. Leichliter, Robert C. Newman, Jr., Stephen Spencer Thompson, Chenming Wu
  • Patent number: 6969959
    Abstract: An apparatus in an electronic control system allows two or three wire operation. A power supply can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such that timing information can be collected in both two and three wire installations. Both zero cross detectors are monitored and are used to automatically configure the electronic control. Over voltage circuitry senses an over voltage condition across a MOSFET which is in the off state and turns the MOSFET on so that it desirably will not reach the avalanche region. Over current circuitry senses when the current through the MOSFETs has exceeded a predetermined current threshold and then turns the MOSFETs off so they do not exceed the MOSFETs' safe operating area (SOA) curve. Latching circuitry is employed to keep the protection circuitry in effect even after a fault condition has cleared.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: November 29, 2005
    Assignee: Lutron Electronics Co., Inc.
    Inventors: Richard L. Black, Graham Christensen, Benjamin Aaron Johnson, Shawn L. Leichliter, Robert C. Newman, Jr., Stephen Spencer Thompson, Chenming Wu