Patents by Inventor Merlyn J. Patrick

Merlyn J. Patrick 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).

  • Thread lead gauge
    Patent number: 4398351
    Abstract: Disclosed is a thread lead gauge which includes a tubular barrel, a handle connected to the barrel, and a dial indicator connected to the handle and having a stem extending into the barrel. A single fixed bearing pin extends from the barrel and a single axially movable point is positioned spaced apart from and in line with the fixed point. A spring is provided for biasing the movable point away from the fixed point. The dial indicator indicates the position of the movable point with respect to the fixed point.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: August 16, 1983
    Assignee: Raines Tool Company
    Inventor: Merlyn J. Patrick