Patents by Inventor W. Doyle Lamb

W. Doyle Lamb 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).

  • Thermal element
    Patent number: 4253304
    Abstract: A thermal element having a tubular casing with an open end, a volume of heat-responsive, expandable wax positioned in said casing at a distance from the open end thereof, a spherical resilient seal member compressively positioned in the casing adjacent said wax, a motion-transmitting pin extended between the seal member and the open end of the casing and having a relatively soft washer affixed thereto for engagement against the seal member and with at least one peripheral notch in the washer permitting flow of liquid thereacross.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: March 3, 1981
    Assignee: A. W. Cash Valve Manufacturing Corporation
    Inventors: W. Doyle Lamb, Lawrence F. Luckenbill