Patents by Inventor Ernest M. Pettit

Ernest M. Pettit 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).

  • Transpiration cooling system having an expulsion bladder
    Patent number: 3998359
    Abstract: A transpiration cooling system having a conical expulsion bladder for cooling conical re-entry vehicles and other uses. The bladder is of high temperature resistant elastomeric materials such as fabric impregnated silicones and carboxynitroso rubber attached to a housing by a circumferential bead. A transpiration coolant is on one side of the bladder and a source of expansive gases on the other. As the gases expand, the bladder pressures the fluid to move to the tip of the re-entry vehicle where it bleeds off to cool the vehicle on re-entry.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: December 21, 1976
    Assignee: McDonnell Douglas Corporation
    Inventor: Ernest M. Pettit