Patents by Inventor Renzo Greghi

Renzo Greghi 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).

  • Patent number: 7975635
    Abstract: An asymmetric sail furling and unfurling device comprises a tubular outer foil and an inner stay foil, the inner and outer foils providing a foil assembly adapted to transmit a torque for furling an unhoisted sail, which is furled on a sheath foil fitted on the outer foil, with the assembly of the foils and sheath being flexible.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: July 12, 2011
    Inventor: Renzo Greghi
  • Patent number: 7263941
    Abstract: A sail furling/unfurling device comprises at least an outer foil wound about and made rigid with an inner foil or stay designed for transmitting the furling torque required for furling a sail being wound on a sheath profiled element, thereby the device allows to furl and unfurl large downwind foresails, i.e. asymmetrical spinnakers or the like, such as gennakers or MPS and can be easily used to hoist and lower the sails, in a simplified manner for a cruiser sailing with a short-hand crew.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: September 4, 2007
    Inventor: Renzo Greghi
  • Publication number: 20050211149
    Abstract: A sail furling/unfurling device comprises at least an outer foil wound about and made rigid with an inner foil or stay designed for transmitting the furling torque required for furling a sail being wound on a sheath profiled element, thereby the device allows to furl and unfurl large downwind foresails, i.e. asymmetrical spinnakers or the like, such as gennakers or MPS and can be easily used to hoist and lower the sails, in a simplified manner for a cruiser sailing with a short-hand crew.
    Type: Application
    Filed: March 24, 2005
    Publication date: September 29, 2005
    Inventor: Renzo Greghi
  • Patent number: 6591771
    Abstract: A device for winding sails comprises at least an outer contoured element wound on and made rigid with an inner contoured element for transmitting a torque required for winding a sail being wound on the outer contoured element. The device allows to wind and unwind large size sails, for bearing arrangements, such as asymmetrical spinnakers, or sails of a same type, such as gennakers or MPS's.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: July 15, 2003
    Inventor: Renzo Greghi
  • Publication number: 20020129754
    Abstract: A device for winding sails comprises at least an outer contoured element wound on and made rigid with an inner contoured element for transmitting a torque required for winding a sail being wound on the outer contoured element.
    Type: Application
    Filed: February 13, 2002
    Publication date: September 19, 2002
    Inventor: Renzo Greghi