Patents by Inventor David Charles Hass

David Charles Hass 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).

  • Ice crystal icing condition simulation method and system
    Patent number: 10928272
    Abstract: A method and apparatus for simulating icing conditions using a wind tunnel is provided. Water drops are sprayed from a number of nozzles into the wind tunnel. A mist of cryogenic liquid is sprayed into a path of the water drops downwind of the nozzles in the wind tunnel, wherein the mist of cryogenic liquid turns the water drops into ice crystals.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: February 23, 2021
    Assignee: The Boeing Company
    Inventors: Charles Steven Meis, Erik M. Langhofer, David Charles Hass, Rachel M. Darr
  • Ice Crystal Icing Condition Simulation Method and System
    Publication number: 20200182741
    Abstract: A method and apparatus for simulating icing conditions using a wind tunnel is provided. Water drops are sprayed from a number of nozzles into the wind tunnel. A mist of cryogenic liquid is sprayed into a path of the water drops downwind of the nozzles in the wind tunnel, wherein the mist of cryogenic liquid turns the water drops into ice crystals.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 11, 2020
    Inventors: Charles Steven Meis, Erik M. Langhofer, David Charles Hass, Rachel M. Darr
  • Inlet icing protection simulation system
    Patent number: 9134196
    Abstract: A method and apparatus for generating a flow of heated air in an airfoil model of an inlet of an aircraft engine. Heated air is sent into a duct system associated with the airfoil model of the inlet of the aircraft engine. The heated air is circulated within the airfoil model of the inlet of the aircraft engine using the duct system in a manner that simulates air flowing in the inlet of the aircraft engine.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 15, 2015
    Assignee: The Boeing Company
    Inventors: Charles Steven Meis, David Charles Hass
  • Inlet Icing Protection Simulation System
    Publication number: 20140060166
    Abstract: A method and apparatus for generating a flow of heated air in an airfoil model of an inlet of an aircraft engine. Heated air is sent into a duct system associated with the airfoil model of the inlet of the aircraft engine. The heated air is circulated within the airfoil model of the inlet of the aircraft engine using the duct system in a manner that simulates air flowing in the inlet of the aircraft engine.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: THE BOEING COMPANY
    Inventors: Charles Steven Meis, David Charles Hass
  • Supercooled large drop icing condition simulation system
    Patent number: 8650944
    Abstract: A method and apparatus for an icing simulation system. The icing simulation system comprises a wind tunnel, a nozzle system, and a controller. The nozzle system is configured to spray drops of water within the wind tunnel. The controller is configured to control a number of properties of the water in the nozzle system such that the nozzle system sprays the drops of the water with different sizes for a desired type of icing condition.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: February 18, 2014
    Assignee: The Boeing Company
    Inventors: Charles Steven Meis, David Charles Hass, Carl Hallstrom
  • Supercooled Large Drop Icing Condition Simulation System
    Publication number: 20130239670
    Abstract: A method and apparatus for an icing simulation system. The icing simulation system comprises a wind tunnel, a nozzle system, and a controller. The nozzle system is configured to spray drops of water within the wind tunnel. The controller is configured to control a number of properties of the water in the nozzle system such that the nozzle system sprays the drops of the water with different sizes for a desired type of icing condition.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 19, 2013
    Applicant: THE BOEING COMPANY
    Inventors: Charles Steven Meis, David Charles Hass, Carl Hallstrom