Patents by Inventor Mike Lantier, Sr.

Mike Lantier, Sr. 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).

  • Combination check valve & back pressure valve
    Patent number: 5320181
    Abstract: The invention relates to a combination valve and back pressure valve which in one embodiment performs as a two-way check valve, and in another embodiment performs as a back pressure valve. The invention contains both apparatus and method claims. The valve includes a cylindrical member having an inlet port and an outlet port, with a bore therethrough. A valve sleeve is disposed within the bore. A valve stem is also slidably disposed within the bore. A selective dis-attachment assembly is incorporated into the valve and includes pre-selected shear pistons.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: June 14, 1994
    Assignee: Wellheads & Safety Control, Inc.
    Inventors: Mike Lantier, Sr., Warren L. Walmer, Sr.