Patents by Inventor Alfonso Caldiroli

Alfonso Caldiroli 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).

  • Publication number: 20020093145
    Abstract: A gasket for fittings comprises: a sealing body (2) able to be associated with a movable part (3a) of a fitting and able to be actuated between an open and a closed position; a primary return element (4), connected to the movable part (3a) of the fitting (3) and active on the sealing body (2) to actuate it to the open position; and a secondary return element (5), connected to the fixed part (3b) of the fitting (3) and active on the sealing body (2) to actuate it to the closed position.
    Type: Application
    Filed: December 12, 2001
    Publication date: July 18, 2002
    Inventors: Alfonso Caldiroli, Paolo Cittadini
  • Patent number: 6173533
    Abstract: A weather strip in particular for window and door frames having a base portion (2) arranged to be engaged in a respective anchoring area (3) of a first bearing frame (4). A head portion (5) of the weather strip is arranged to act against an abutment area (6) associated with the a second bearing frame (7). A band of magnetic material (8) is associated with the head portion, and there is an intermediate connecting portion (9) formed, in transverse section, by a single fillet element connecting the head portion with the base portion.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: January 16, 2001
    Assignee: Industrie Ilpea S.p.A
    Inventors: Paolo Cittadini, Alfonso Caldiroli
  • Patent number: 6145256
    Abstract: A thermal-insulation element for window and door frames, which has a main body adapted to be operatively interposed between an inner half and an outer half of the framework of the door or window frame. There is an abutment portion projecting in a transverse direction from the main body and adapted to receive a head portion of a weather strip coming into abutment against it. A magnetic material is operatively associated with the abutment portion and an axial stop is operatively associated with the magnetic material to prevent expansions/contractions of the magnetic means.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: November 14, 2000
    Assignee: Industrie ILPEA S.p.A.
    Inventors: Paolo Cittadini, Alfonso Caldiroli