Patents by Inventor Oscar MacLachlan

Oscar MacLachlan 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).

  • Method of pre-shaping and vacuum molding a thermoplastic sheet
    Patent number: 4975236
    Abstract: A method of shaping a thermoplastic sheet. The sheet is mounted on an articulated frame and pre-shaped by swinging hinged sections of the frame toward each other. A vacuum mold is then placed with its molded surfaces adjacent the pre-shaped sheet. Vacuum applied to the mold finally shapes the sheet.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: December 4, 1990
    Inventor: Oscar MacLachlan
  • Buoy for crab pots or the like
    Patent number: D246095
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: October 18, 1977
    Assignees: Jack A. SAID Eby, Loren R. said Eby, Eugene F. Andersen
    Inventors: Jack A. Eby, Loren R. Eby, Eugene F. Andersen, Oscar MacLachlan