Patents by Inventor Lanny D. Cook

Lanny D. Cook 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).

  • Soft seat Y pattern globe valve
    Patent number: 4688757
    Abstract: A globe valve (10) is disclosed which reduces the pressure drop across a soft seal (38) as it moves into and out of engagement with a seal surface (24) on the valve body (12) to reduce the wear effect of the pressure drop, particularly in control of gas flow with maximum pressures of approximately 6000 psi. A hard seal (28) is resiliently mounted on the valve stem (20) to engage the valve seal surface of the valve body prior to engagement of the soft seal to reduce the pressure drop across the soft seal.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: August 25, 1987
    Assignee: Dresser Industries, Inc.
    Inventors: Lanny D. Cook, George W. Parker