Patents by Inventor Frank Libretto

Frank Libretto 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).

  • Portable flow control valve
    Patent number: 6866241
    Abstract: A portable flow control valve for allowing a user to control fluid flow from a conduit from anywhere along the hose. The portable flow control valve includes a frame assembly being designed for being selectively positioned around the conduit. A clamping member is coupled to the frame assembly whereby the clamping member is slidably positionable with respect to the frame assembly. The clamping member is designed for engaging the conduit whereby the clamping member is for compressing the conduit between the frame assembly and the clamping member for controlling the rate of flow of the fluid through the conduit beyond the clamping member.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: March 15, 2005
    Inventor: Frank Libretto