Patents by Inventor Ideo Caleffi

Ideo Caleffi 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: 6790346
    Abstract: Cyclone separator with flow rate regulation for separating solid particles from a fluid, comprises a recipient having a fluid inlet and an upper outlet for clarified fluid. The separator also comprises a recycling conduit which places an outlet conduit in communication with the inlet, a three-way valve to an inlet of which the outlet conduit is connected, and to outlets of which the recycling conduit and the outlet are connected. The three-way valve has an obturator which can block the connection between the outlet conduit and the recycling conduit, a one-way valve which has an obturator and is located at the outlet downstream of the three-way valve. The one-way valve is normally closed and can connect the outlet conduit with the outlet. The three-way valve and the one-way valve are brought into action when the fluid pressure in outlet from the separator reaches first and second predetermined values.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: September 14, 2004
    Assignee: Cattani S.p.A.
    Inventor: Ideo Caleffi
  • Publication number: 20040074828
    Abstract: The cyclone separator with flow rate regulation is for separating solid particles from a fluid, especially in dental apparatus. The separator comprises a recipient having an inlet for the fluid and an upper outlet for the fluid once the solid particles have been removed therefrom. The separator also comprises a recycling conduit which places an outlet conduit in communication with the inlet, a three-way valve to an inlet of which the outlet conduit is connected, and to outlets of which the recycling conduit and the outlet are connected. The three-way valve has an obturator which can block the connection between the outlet conduit and the recycling conduit, a one-way valve which has an obturator and is located at the outlet downstream of the three-way valve. The one-way valve is normally closed and can connect the outlet conduit with the outlet. The three-way valve and the one-way valve are brought into action when the fluid pressure in outlet from the separator reaches first and second predetermined values.
    Type: Application
    Filed: July 22, 2003
    Publication date: April 22, 2004
    Applicant: CATTANI S.P.A.
    Inventor: Ideo Caleffi