Patents by Inventor Joseph Salvatore Shifrin

Joseph Salvatore Shifrin 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).

  • Hydroelectric in-pipe generator
    Patent number: 7579703
    Abstract: The present device provides an in-pipe turbine generator having a conduit, a plurality of runner blades positioned within the conduit, and a pitch adjustment mechanism whereby the pitch of the runner blades may be varied. The pitch adjustment mechanism further includes pitch adjustment screws that are positioned on a tangential flat on the master pitch adjustment bevel gear. Rotation of the pitch adjustment screw rotates the master pitch adjustment bevel gear thereby rotating the blade hub gears and the runner blades. Runner blade torque and angular velocity is transferred to a DC power generator and may be converted to AC power.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: August 25, 2009
    Inventor: Joseph Salvatore Shifrin
  • Hydroelectric in-pipe generator
    Publication number: 20080290663
    Abstract: The present device provides an in-pipe turbine generator having a conduit, a plurality of runner blades positioned within the conduit, and a pitch adjustment mechanism whereby the pitch of the runner blades may be varied. The pitch adjustment mechanism further includes pitch adjustment screws that are positioned on a tangential flat on the master pitch adjustment bevel gear. Rotation of the pitch adjustment screw rotates the master pitch adjustment bevel gear thereby rotating the blade hub gears and the runner blades. Runner blade torque and angular velocity is transferred to a DC power generator and may be converted to AC power.
    Type: Application
    Filed: May 21, 2008
    Publication date: November 27, 2008
    Inventor: Joseph Salvatore Shifrin