Patents by Inventor Daniel A Lehman

Daniel A Lehman 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: 10520423
    Abstract: A portable environmental testing system for environmental testing with particulate matter, such as sand and dust, is disclosed. The components of the system are largely contained within a modular container, such as an intermodal shipping container. The testing system uses a feeder to feed precise amounts of particulate matter into an injector, which injects the particulate matter into an airflow that leads to a nozzle assembly. The airflow itself is generated by a compressed air system. The material input station, for inputting particulate matter, includes operator protection features, like a negative draw fan. The system may be provided with wheels and a tow bar.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 31, 2019
    Assignee: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Daniel A. Lehman
  • Publication number: 20170343468
    Abstract: A portable environmental testing system for environmental testing with particulate matter, such as sand and dust, is disclosed. The components of the system are largely contained within a modular container, such as an intermodal shipping container. The testing system uses a feeder to feed precise amounts of particulate matter into an injector, which injects the particulate matter into an airflow that leads to a nozzle assembly. The airflow itself is generated by a compressed air system. The material input station, for inputting particulate matter, includes operator protection features, like a negative draw fan. The system may be provided with wheels and a tow bar.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 30, 2017
    Inventor: Daniel A. Lehman
  • Patent number: 9677991
    Abstract: An environmental testing system for environmental testing with particulate matter, such as sand and dust, is disclosed. The testing system uses a feeder to feed precise amounts of particulate matter into an injector, which injects the particulate matter into the airflow leading to a test chamber with approximately the same velocity as the surrounding airflow. The feeder may be a loss-in-weight gravimetric feeder, and the injector may be a Venturi valve actuated by compressed air. The system also includes operator protection features, such as an exhaust fan that creates negative pressure when the door to the test chamber is opened, and when particulate matter is dumped into the system. A temperature control system heats and cools the airflow during tests, a pneumatic conveying system moves fluidized particulate matter into and out of the system, and a controller provides automatic control over the system.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: June 13, 2017
    Assignee: Air Dynamics Industrial Systems Corporation
    Inventors: Daniel P. Lehman, Daniel A. Lehman
  • Publication number: 20140338470
    Abstract: An environmental testing system for environmental testing with particulate matter, such as sand and dust, is disclosed. The testing system uses a feeder to feed precise amounts of particulate matter into an injector, which injects the particulate matter into the airflow leading to a test chamber with approximately the same velocity as the surrounding airflow. The feeder may be a loss-in-weight gravimetric feeder, and the injector may be a Venturi valve actuated by compressed air. The system also includes operator protection features, such as an exhaust fan that creates negative pressure when the door to the test chamber is opened, and when particulate matter is dumped into the system. A temperature control system heats and cools the airflow during tests, a pneumatic conveying system moves fluidized particulate matter into and out of the system, and a controller provides automatic control over the system.
    Type: Application
    Filed: April 15, 2014
    Publication date: November 20, 2014
    Applicant: Air Dynamics Industrial Systems Corporation
    Inventors: Daniel P. Lehman, Daniel A. Lehman
  • Patent number: 8771408
    Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: July 8, 2014
    Assignee: Air Dynamics Industrial Systems Corporation
    Inventors: Daniel P. Lehman, Daniel A. Lehman
  • Patent number: 8733186
    Abstract: An environmental testing system for environmental testing with particulate matter, such as sand and dust, is disclosed. The testing system uses a feeder to feed precise amounts of particulate matter into an injector, which injects the particulate matter into the airflow leading to a test chamber with approximately the same velocity as the surrounding airflow. The feeder may be a loss-in-weight gravimetric feeder, and the injector may be a Venturi valve actuated by compressed air. The system also includes operator protection features, such as an exhaust fan that creates negative pressure when the door to the test chamber is opened, and when particulate matter is dumped into the system. A temperature control system heats and cools the airflow during tests, a pneumatic conveying system moves fluidized particulate matter into and out of the system, and a controller provides automatic control over the system.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: May 27, 2014
    Assignee: Air Dynamics Industrial Systems Corporation
    Inventors: Daniel P. Lehman, Daniel A. Lehman
  • Publication number: 20110290043
    Abstract: An environmental testing system for environmental testing with particulate matter, such as sand and dust, is disclosed. The testing system uses a feeder to feed precise amounts of particulate matter into an injector, which injects the particulate matter into the airflow leading to a test chamber with approximately the same velocity as the surrounding airflow. The feeder may be a loss-in-weight gravimetric feeder, and the injector may be a Venturi valve actuated by compressed air. The system also includes operator protection features, such as an exhaust fan that creates negative pressure when the door to the test chamber is opened, and when particulate matter is dumped into the system. A temperature control system heats and cools the airflow during tests, a pneumatic conveying system moves fluidized particulate matter into and out of the system, and a controller provides automatic control over the system.
    Type: Application
    Filed: December 1, 2010
    Publication date: December 1, 2011
    Applicant: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Daniel P. Lehman, Daniel A. Lehman
  • Publication number: 20110271834
    Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.
    Type: Application
    Filed: January 28, 2011
    Publication date: November 10, 2011
    Applicant: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Daniel P. Lehman, Daniel A. Lehman
  • Patent number: 8012249
    Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: September 6, 2011
    Assignee: Air Dynamics Industrial Systems Corporation
    Inventors: Daniel P Lehman, Daniel A Lehman
  • Publication number: 20100024655
    Abstract: A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.
    Type: Application
    Filed: July 29, 2008
    Publication date: February 4, 2010
    Applicant: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Daniel P. Lehman, Daniel A. Lehman