Patents by Inventor Michael L. Mannis

Michael L. Mannis 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).

  • Combined directional and flow control valve
    Patent number: 6098659
    Abstract: A one-way spring tensioned flapper is located at one end of a valve housing to control the direction of flow. A rotatable plug at a second end can be partially opened to control the flow rate through the valve. A top mounted handle controls movement of the rotatable plug 90.degree. in either direction from a longitudinal line between a first and second opening to the valve. A rubber seal on each side of the flapper and the rotatable plug prevents leakage in the closed position.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: August 8, 2000
    Assignee: J. Barry Cook
    Inventor: Michael L. Mannis