Patents by Inventor Leonard J. Flack

Leonard J. Flack 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).

  • Aspirator tube check valve assembly and method of continuously sensing vehicular interior compartment air temperature
    Patent number: 5167273
    Abstract: An interior air temperature sensing system is provided for use with a vehicle interior compartment air temperature regulating system including an ambient air inlet duct, a blower housing connected to an air inlet duct and an air temperature modifier and a blower situated within the blower housing. The blower draws air from the air inlet duct under negative pressure and conveys the air at positive pressure past the air temperature modifier to the interior compartment. The air temperature sensing system includes an air temperature sensor and a venturi valve coupled to the negative pressure area of the blower. The valve includes an inlet port, and outlet port and a venturi section extending therebetween defining a point of minimum flow area, or valve seat.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: December 1, 1992
    Assignee: Ford Motor Company
    Inventors: Joseph L. Terry, Leonard J. Flack