Patents by Inventor Edward Leszak

Edward Leszak 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).

  • Re-entrant groove heat pipe
    Patent number: 4545427
    Abstract: A sealed heat pipe of uniform cross sectional profile from evaporator to condenser which includes a plurality of capillary channels communicating with a central channel by means of narrow re-entrant groove openings having convergent entrances. A two step method of fabrication includes extruding the re-entrant grooves, then drawing a mandrel through the virgin extrusion.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: October 8, 1985
    Assignee: Grumman Aerospace Corporation
    Inventors: Joseph P. Alario, Robert Kosson, Edward Leszak
  • Method of making a re-entrant groove heat pipe
    Patent number: 4457059
    Abstract: A sealed heat pipe of uniform cross sectional profile from evaporator to condenser which includes a plurality of capillary channels communicating with a central channel by means of narrow re-entrant groove openings having convergent entrances. A two step method of fabrication includes extruding the re-entrant grooves, then drawing a mandrel through the virgin extrusion.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: July 3, 1984
    Assignee: Grumman Aerospace Corporation
    Inventors: Joseph P. Alario, Robert Kosson, Edward Leszak