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).
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Patent number: 10520423Abstract: 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: GrantFiled: May 8, 2017Date of Patent: December 31, 2019Assignee: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATIONInventor: Daniel A. Lehman
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Publication number: 20170343468Abstract: 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: ApplicationFiled: May 8, 2017Publication date: November 30, 2017Inventor: Daniel A. Lehman
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Patent number: 9677991Abstract: 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: GrantFiled: April 15, 2014Date of Patent: June 13, 2017Assignee: Air Dynamics Industrial Systems CorporationInventors: Daniel P. Lehman, Daniel A. Lehman
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Publication number: 20140338470Abstract: 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: ApplicationFiled: April 15, 2014Publication date: November 20, 2014Applicant: Air Dynamics Industrial Systems CorporationInventors: Daniel P. Lehman, Daniel A. Lehman
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Patent number: 8771408Abstract: 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: GrantFiled: January 28, 2011Date of Patent: July 8, 2014Assignee: Air Dynamics Industrial Systems CorporationInventors: Daniel P. Lehman, Daniel A. Lehman
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Patent number: 8733186Abstract: 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: GrantFiled: December 1, 2010Date of Patent: May 27, 2014Assignee: Air Dynamics Industrial Systems CorporationInventors: Daniel P. Lehman, Daniel A. Lehman
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Publication number: 20110290043Abstract: 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: ApplicationFiled: December 1, 2010Publication date: December 1, 2011Applicant: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATIONInventors: Daniel P. Lehman, Daniel A. Lehman
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Publication number: 20110271834Abstract: 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: ApplicationFiled: January 28, 2011Publication date: November 10, 2011Applicant: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATIONInventors: Daniel P. Lehman, Daniel A. Lehman
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Patent number: 8012249Abstract: 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: GrantFiled: July 29, 2008Date of Patent: September 6, 2011Assignee: Air Dynamics Industrial Systems CorporationInventors: Daniel P Lehman, Daniel A Lehman
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Publication number: 20100024655Abstract: 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: ApplicationFiled: July 29, 2008Publication date: February 4, 2010Applicant: AIR DYNAMICS INDUSTRIAL SYSTEMS CORPORATIONInventors: Daniel P. Lehman, Daniel A. Lehman