Patents by Inventor Joseph R. Kasmarik

Joseph R. Kasmarik 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).

  • Thrust spoiler for turbofan engine
    Patent number: 4112677
    Abstract: A multiplicity of retractable spoilers are placed at spaced angular intervals within the annular duct which carries the bypass airstream in a turbofan engine. Deployment of the spoilers into the bypass annular duct causes a partial blockage of the airstream. This results in a decrease in thrust from the engine without any change in throttle setting.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: September 12, 1978
    Assignee: Avco Corporation
    Inventor: Joseph R. Kasmarik