Patents by Inventor David Leonard

David Leonard 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: 12326300
    Abstract: A system includes a heat exchanger that includes a relatively hotter process gas inlet and an exit port, a moisture removing filter coupled to the exit port, the moisture removing filter including a relatively colder gas exit, and a drain valve coupled to the moisture removing filter. The heat exchanger, the moisture removing filter, and the drain valve are all located in a thermally-insulated enclosure. A fan is placed outside the thermally-insulated enclosure and forces ambient air over the heat exchanger. The ambient air is sufficient to maintain a temperature above a water freezing temperature in the thermally-insulated enclosure even if the ambient air is below the water freezing temperature.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: June 10, 2025
    Assignee: Qnergy Inc.
    Inventor: David Leonard
  • Publication number: 20240167770
    Abstract: A system includes a heat exchanger that includes a relatively hotter process gas inlet and an exit port, a moisture removing filter coupled to the exit port, the moisture removing filter including a relatively colder gas exit, and a drain valve coupled to the moisture removing filter. The heat exchanger, the moisture removing filter, and the drain valve are all located in a thermally-insulated enclosure. A fan is placed outside the thermally-insulated enclosure and forces ambient air over the heat exchanger. The ambient air is sufficient to maintain a temperature above a water freezing temperature in the thermally-insulated enclosure even if the ambient air is below the water freezing temperature.
    Type: Application
    Filed: August 28, 2023
    Publication date: May 23, 2024
    Applicant: Qnergy Inc.
    Inventor: David Leonard
  • Publication number: 20240052797
    Abstract: A method for operation of a closed-cycle power conversion device includes receiving measured thermal information from one or more sensors that sense thermal characteristics of a hot portion of an absorber heat exchanger of a closed-cycle power conversion device which uses a working medium in its operation. The closed-cycle power conversion device is in thermal connection with a heat source, and absorption of heat from the heat source is proportional to a mass or mass flow rate of the working medium. If the measured thermal information is not in a defined normal range, a message is provided of an abnormality in operation of the closed-cycle power conversion device.
    Type: Application
    Filed: August 10, 2023
    Publication date: February 15, 2024
    Applicant: Qnergy Inc.
    Inventors: David Leonard, Isaac Garaway, Ben Figlin, Allen A. Peterson
  • Publication number: 20210364629
    Abstract: A system (100) for remote detection of one or more dimensions of a metallic and/or dielectric object (116), comprising: at least one sensor component configured to identify one or more candidate objects (111), a transmission apparatus, including a transmission element (106), configured to direct microwave and/or mm wave radiation, a detection apparatus (108,109) configured to receive radiation from an entity resulting from the transmitted radiation and to generate one or more detection signals in the frequency domain, and a controller (104), the controller being operable to: generate location data for the one or more candidate objects (111) based on data received from the sensor component; cause the transmission apparatus to direct radiation towards a candidate object, cause the transmitted radiation to be continuously swept over a predetermined range of frequencies, perform a transform operation on the detection signals to generate one or more transformed signals, and determine, from one or more features of
    Type: Application
    Filed: May 10, 2019
    Publication date: November 25, 2021
    Inventors: Philip Edward RYDER, David LEONARD, Tony TSZ-HONG YAU, Srikrishna NUDURUMATI
  • Publication number: 20210321936
    Abstract: The present disclosure relates to methods and devices to detect perforation of the bowel, for example, resulting from surgical procedures, such as laparoscopy, diagnostic procedures, such as colonoscopy, medical conditions, such as diverticulitis, and trauma. The present disclosure also relates to filtration systems and electrical connector assemblies for use in the methods and devices.
    Type: Application
    Filed: July 7, 2021
    Publication date: October 21, 2021
    Inventors: Tony SCALICI, David LEONARD, David KRASNE, Balakrishna HARIDAS, M. Robert GARFIELD, III
  • Publication number: 20190053749
    Abstract: The present disclosure relates to methods and devices to detect perforation of the bowel, for example, resulting from surgical procedures, such as laparoscopy, diagnostic procedures, such as colonoscopy, medical conditions, such as diverticulitis, and trauma. The present disclosure also relates to filtration systems and electrical connector assemblies for use in the methods and devices.
    Type: Application
    Filed: February 6, 2018
    Publication date: February 21, 2019
    Applicant: Sentire Medical Systems, LLC
    Inventors: Tony SCALICI, David LEONARD, David KRASNE, Balakrishna HARIDAS, M. Robert GARFIELD, III
  • Patent number: 9907505
    Abstract: The present disclosure relates to methods and devices to detect perforation of the bowel, for example, resulting from surgical procedures, such as laparoscopy, diagnostic procedures, such as colonoscopy, medical conditions, such as diverticulitis, and trauma. The present disclosure also relates to filtration systems and electrical connector assemblies for use in the methods and devices.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: March 6, 2018
    Assignee: Sentire Medical Systems, LLC
    Inventors: Tony Scalici, David Leonard, David Krasne, Balakrishna Haridas, M. Robert Garfield, III
  • Patent number: 9572228
    Abstract: Commissioning a lighting system is disclosed. A user can be provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. Additional user gestures are also disclosed.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: February 14, 2017
    Assignee: Redwood Systems, Inc.
    Inventors: Robert Henig, David Fowler, Deepak Nulu, David Leonard, Carl P. Zwanzig
  • Publication number: 20150159810
    Abstract: A pressure relief device includes a rupture disc installed in a housing disposed on a pressure vessel chamber, and a flow restrictor placed between the pressure vessel chamber and the rupture disc.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 11, 2015
    Inventors: David Leonard, Gilad Doron
  • Publication number: 20150115805
    Abstract: Commissioning a lighting system is disclosed. A user can be provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. Additional user gestures are also disclosed.
    Type: Application
    Filed: January 9, 2015
    Publication date: April 30, 2015
    Inventors: Robert Henig, David Fowler, Deepak Nulu, David Leonard, Carl P. Zwanzig
  • Patent number: 8981913
    Abstract: Commissioning a lighting system is disclosed. A user can be provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. Additional user gestures are also disclosed.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 17, 2015
    Assignee: Redwood Systems, Inc.
    Inventors: Robert Henig, David Fowler, Deepak Nulu, David Leonard, Carl P. Zwanzig
  • Patent number: 8729835
    Abstract: A lighting system for areal illumination is disclosed which may include a remote driver and a plurality of fixtures including luminaires. The luminaires may include a light source whose output light level can be adjusted, a light sensor co-located therewith adapted to measure light received from adjacent fixtures. The remote driver may provide power for the light sources of the luminaires.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: May 20, 2014
    Assignee: Redwood Systems, Inc.
    Inventors: Robert Henig, David Fowler, Jeremy Stieglitz, David Leonard, Mark Covaro
  • Patent number: 8710772
    Abstract: A lighting system for areal illumination is disclosed which includes a remote driver and a plurality of fixtures including luminaires, control devices, and/or standalone sensors. The luminaires include a light source whose output light level can be adjusted, a light sensor co-located therewith adapted to measure light received from adjacent fixtures, and a microcontroller capable of transmitting the output of the light sensor over wires to the remote driver. The remote driver is capable of bidirectional communication with the luminaires and provides independently controllable power for the light sources of the luminaires. A movable orb region containing luminaires can also be defined and the light levels of individual luminaires can be set according to their location within the orb region.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: April 29, 2014
    Assignee: Redwood Systems, Inc.
    Inventors: Robert Henig, David Fowler, Jeremy Stieglitz, David Leonard, Mark Covaro
  • Patent number: 8706271
    Abstract: A system may communicate between a display device and a lighting system using light generated by the display device and a light sensor in the lighting system. A computing device and a building control system may communication over a wireless link. The building control system may determine that the computing device is co-located with a fixture in the building control system based on whether communication over the wireless link between the computing device and the building control system is detected.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Redwood Systems, Inc.
    Inventors: Mark Covaro, David Leonard
  • Publication number: 20130096399
    Abstract: The present disclosure relates to methods and devices to detect perforation of the bowel, for example, resulting from surgical procedures, such as laparoscopy, diagnostic procedures, such as colonoscopy, medical conditions, such as diverticulitis, and trauma. The present disclosure also relates to filtration systems and electrical connector assemblies for use in the methods and devices.
    Type: Application
    Filed: April 9, 2012
    Publication date: April 18, 2013
    Inventors: Tony SCALICI, David Leonard, David Krasne, Balakrishna Haridas, M. Robert Garfield, III
  • Publication number: 20120194083
    Abstract: A lighting system for areal illumination is disclosed which may include a remote driver and a plurality of fixtures including luminaires. The luminaires may include a light source whose output light level can be adjusted, a light sensor co-located therewith adapted to measure light received from adjacent fixtures. The remote driver may provide power for the light sources of the luminaires.
    Type: Application
    Filed: April 9, 2012
    Publication date: August 2, 2012
    Applicant: REDWOOD SYSTEMS, INC.
    Inventors: Robert Henig, David Fowler, Jeremy Stieglitz, David Leonard, Mark Covaro
  • Publication number: 20120161643
    Abstract: A lighting system for areal illumination is disclosed which includes a remote driver and a plurality of fixtures including luminaires, control devices, and/or standalone sensors. The luminaires include a light source whose output light level can be adjusted, a light sensor co-located therewith adapted to measure light received from adjacent fixtures, and a microcontroller capable of transmitting the output of the light sensor over wires to the remote driver. The remote driver is capable of bidirectional communication with the luminaires and provides independently controllable power for the light sources of the luminaires. A movable orb region containing luminaires can also be defined and the light levels of individual luminaires can be set according to their location within the orb region.
    Type: Application
    Filed: March 1, 2012
    Publication date: June 28, 2012
    Applicant: Redwood Systems, Inc.
    Inventors: Robert Henig, David Fowler, Jeremy Stieglitz, David Leonard, Mark Covaro
  • Patent number: 8159156
    Abstract: A lighting system for areal illumination is disclosed which includes a remote driver and a plurality of fixtures including luminaires, control devices, and/or standalone sensors. A method of commissioning a lighting system is also disclosed which includes causing a light source co-located with each luminaire to emit a signal, detecting the signal at light sensors co-located with each luminaire, converting the signals obtained by the light sensors into distance measurements between luminaires, creating a map recording the relative location of luminaires, and assigning luminaires to groups based on their relative locations in the map. A movable orb region containing luminaires can also be defined.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: April 17, 2012
    Assignee: Redwood Systems, Inc.
    Inventors: Robert Henig, David Fowler, Jeremy Stieglitz, David Leonard, Mark Covaro
  • Publication number: 20110199020
    Abstract: A method of commissioning a lighting system is disclosed. A user is provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. This commissioning method can be used with a lighting system comprising a central control unit and a plurality of fixtures comprising luminaires, optional control devices, and optional standalone sensors, wherein each fixture includes a co-located sensor capable of receiving the signal emitted by the pointing device, and a central control unit which can communicate bidirectionally with each fixture. Additional user gestures are disclosed together with methods for the central control unit to acknowledge gestures.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Applicant: REDWOOD SYSTEMS, INC.
    Inventors: Robert Henig, David Fowler, Deepak Nulu, David Leonard
  • Publication number: 20110199004
    Abstract: Commissioning a lighting system is disclosed. A user can be provided with a pointing device capable of emitting or returning a signal which can be received by detectors co-located with each fixture in the lighting system. The user can add a fixture to a group by aiming the pointing device at the fixture when the fixture is not assigned to the group, and the user can remove a fixture from a group in the same way when the fixture was previously assigned to the group. Additional user gestures are also disclosed.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: REDWOOD SYSTEMS, INC.
    Inventors: Robert Henig, David Fowler, Deepak Nulu, David Leonard, Carl P. Zwanzig