Patents by Inventor Simo A. O. Pennila

Simo A. O. Pennila 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).

  • Crosshead
    Patent number: 4280801
    Abstract: A crosshead for extruding an annular layer of thermoplastic material about a central longitudinal axis. The crosshead comprises a die having an annular slotted die opening surrounding the axis, a transverse inlet passageway for receiving molten thermoplastic material, an annular cavity connected to the inlet passageway, an annular distribution passage connected to the annular cavity and an annular connecting passage extending from the annular distribution passage to the die opening. The annular cavity and annular distribution passage each extend radially with respect to the longitudinal axis. Two or more layers of thermoplastic material are extruded by the crosshead when it is equipped with two or more dies.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: July 28, 1981
    Assignee: Crompton & Knowles Corporation
    Inventors: Norton C. Wheeler, Jr., John G. Seuferling, Simo A. O. Pennila
  • Thin and low specific heat ceramic coating and method for increasing operating efficiency of internal combustion engines
    Patent number: 4074671
    Abstract: An internal combustion engine having combustion chamber walls coated with a thin ceramic coating with a specific heat of less than 0.12 BTU/lb/.degree. F, a thermal conductivity of less than 11 BTU/HR/FT/.degree. F and a thickness of 0.2 to 1 mil so as to reduce heat losses and increase efficiency of the engine.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: February 21, 1978
    Inventor: Simo A. O. Pennila