Patents by Inventor Leslie J. Cook

Leslie J. Cook 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).

  • Patent number: 4319862
    Abstract: The trailer has a main frame of generally U shape having stub axles on which ground-engaging wheels are journalled. A structurally rigid boat supporting frame is suspended from the main frame by a cable and pulley arrangement which enables the boat supporting frame to be raised and lowered horizontally and to be tilted lengthwise to a relatively steep angle relative to the main frame. The desired degree of tilt is facilitated by the fact that the front end of the boat supporting frame can be pivotally connected to the main frame at various heights.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: March 16, 1982
    Inventor: Leslie J. Cook
  • Patent number: 4124801
    Abstract: Apparatus and method for separating materials, particularly isotopes of heavy metals. An electrohydrodynamic source of positive ions directed in a beam to a transverse magnetic field which deflects the ions along paths which carry the different mass ions to different collectors. An ion source incorporating a container for molten material, a pressure system for delivering the liquid material to a capillary tube, and a high voltage power supply providing an intense electrostatic field at the tube end for producing ions by field emission.
    Type: Grant
    Filed: September 24, 1976
    Date of Patent: November 7, 1978
    Assignee: Phrasor Technology Incorporated
    Inventors: Leslie J. Cook, Alvin T. Forrester, John F. Mahoney, Julius Perel, Kenneth E. Vickers