Patents by Inventor Ramey L. Brown, executor

Ramey L. Brown, executor 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).

  • Check valve assembly
    Patent number: 4088298
    Abstract: A check valve assembly for permitting unrestricted flow in one direction and limited flow in the reverse direction comprising: a valve body having a longitudinal flowbore therethrough; a seat member carried by the valve body; a closure member carried by the valve body for movement from a normally open position, in which flow through the flowbore is unrestricted, to a closed position engaging the seat member, in which reverse flow through the valve body is prevented; and a reciprocal sleeve member carried by the valve body for movement between a first position, preventing movement of the closure member to its closed position, to a second position, allowing movement of the closure member to its closed position.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: May 9, 1978
    Assignee: Brown Oil Tools, Inc.
    Inventors: Cicero C. Brown, deceased, Ramey L. Brown, executor