Patents by Inventor Charles E. Scheffler

Charles E. Scheffler 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).

  • Fire suppression test apparatus
    Patent number: 4693320
    Abstract: A military tank is equipped with an auxiliary (extra) power source located utside the tank. With the tank engine inactive (non-running) the auxiliary power source can be energized to deliver power to the engine transmission and to the air-coolant fans for the engine. A tank, equipped with the auxiliary power source, can be subjected to a realistic live fire test of its fire suppression system even though the tank engine is inoperable or inactive.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: September 15, 1987
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul J. Lescoe, Charles E. Scheffler
  • Pulsation valve
    Patent number: 4581887
    Abstract: A valve mechanism for delivering time-spaced pulses of coolant air to coog passages within a turbine engine. The mechanism is designed for varying the pulse frequency to ascertain the affect that pulse frequency variations have on the cooling effect. The valve mechanism is manufacturable at relatively low cost, using standard shelf components and easily machined parts.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: April 15, 1986
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Charles E. Scheffler, Richard E. McClelland