Patents by Inventor Lawrence A. Watson

Lawrence A. Watson 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 making foam filled panels
    Patent number: 4075304
    Abstract: A method of making a foam filled panel by clamping two sheets together at one end thereof, spreading the sheets at the opposite ends, introducing foamable material into a hollow, closed space between the sheets where clamped, and progressively clamping and filling space between successive adjoining portions of the sheets working toward the free ends until a foam filled panel is formed. The sheets are kept at a fixed location and a sprayer is manipulated to introduce the foamable material. Panels of unusual shapes can be formed.
    Type: Grant
    Filed: January 29, 1976
    Date of Patent: February 21, 1978
    Assignee: Edgewater Marine, Inc.
    Inventor: Lawrence A. Watson