Patents by Inventor Jack L. Hagar

Jack L. Hagar 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).

  • Metering regulator for pneumatic tools
    Patent number: 4817667
    Abstract: A metering regulator for air tools which includes a ported sleeve adjustable to control the volume of air flowing therethrough while simultaneously controlling the shut-off pressure of the air tool by adjusting the biasing force exerted on a differential pressure actuated pressure regulating member.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: April 4, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: Jack L. Hagar