Patents by Inventor Paolo Cittadini

Paolo Cittadini 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: 20040197590
    Abstract: The present invention relates to a synthetic leather free from halogens and prepared with a method characterized in that it comprises the following stages: a) forming, in a mould by means of slush moulding, a first layer, i.e. the visible layer in the finished leather, from a polyolefin composition grafted with silanes and cross-linkable in the presence of water, b) in immediate succession, forming, in said mould by means of slush moulding, a second layer from a polyolefin composition having a semi-crystalline phase with a high melting point not less than 120° C. and preferably not less than 140° C.
    Type: Application
    Filed: May 7, 2004
    Publication date: October 7, 2004
    Inventors: Paolo Cittadini, Marco De Giorgi
  • Patent number: 6785948
    Abstract: The invention relates to a method and apparatus for assembling in an automated manner a sealing profile on an inner door for refrigerators. The method comprises the stages of: a) providing said profile (1) in the form of a frame welded at the corners, b) stably resting said frame on a support (10), c) gripping said section (4) along all the sides of said frame using engaging means (12) so as to perform said elastic splaying, d) retaining said sections (4) in the splayed position, e) positioning said inner door (31) on said sections (2) of said profile base, f) releasing said sections (4) so as to allow the elastic return of the profile base onto the edge of the inner door, g) extracting inner door and profile thus assembled from said support.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: September 7, 2004
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Pierpaolo Ferrante
  • Patent number: 6776950
    Abstract: A slush-moulding method combined with cross-linking, including the filling of a tank with a suitable quantity of ground polymer blend and the coupling of said tank with a heated mold is provided. The closed system thus obtained is moved in order to transfer the powder onto the mold, so as to carry out on the latter a layer of completely or partially melted powder. Before and after a stage of stripping of the leather off the mold, said leather is cross-linked by means of radiations.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: August 17, 2004
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Vladimir Ignatov
  • Publication number: 20040157079
    Abstract: The present invention relates to a method for forming a vibration-damping sheet or panel to be joined to a sheet metal element, such as the bodywork of a motor vehicle, this sheet or panel being formed using a plurality of materials including at least a material having vibration-damping properties and a magnetic material, characterized in that it comprises the stages of forming a first layer which is operationally intended to come into contact with said sheet metal and in which substantially all of said magnetic material is included, forming a second layer comprising all or part of said material with vibration-damping properties and joining together said layers to form said sheet or panel.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventor: Paolo Cittadini
  • Publication number: 20040139661
    Abstract: The present invention relates to an improved profile, in particular for refrigerator furniture units, of the type with a bellows seal which forms a sealed closure between the door and the furniture and able to allow automated assembly of the various components.
    Type: Application
    Filed: November 17, 2003
    Publication date: July 22, 2004
    Inventor: Paolo Cittadini
  • Publication number: 20040078951
    Abstract: The invention relates to a method and apparatus for assembling in an automated manner a sealing profile on an inner door for refrigerators. The method comprises the stages of: a) providing said profile (1) in the form of a frame welded at the corners, b) stably resting said frame on a support (10), c) gripping said section (4) along all the sides of said frame using engaging means (12) so as to perform said elastic splaying, d) retaining said sections (4) in the splayed position, e) positioning said inner door (31) on said sections (2) of said profile base, f) releasing said sections (4) so as to allow the elastic return of the profile base onto the edge of the inner door, g) extracting inner door and profile thus assembled from said support.
    Type: Application
    Filed: December 16, 2003
    Publication date: April 29, 2004
    Inventors: Paolo Cittadini, Pierpaolo Ferrante
  • Publication number: 20040051427
    Abstract: Sealing assembly comprising a bellows-scal gasket (20) and a profile (1) with a base (3) provided, at opposite ends, with sealing strips (4, 15) and a groove (23) for a replacement of the bellows-seal gasket (20); the profile (1) has at least one side branch (7) terminating in a grooved scat (9) with a C-shaped cross-section for receiving an edge (28) of an inner door panel (31) against which a sealing strip (2) provided at the end of the grooved seat (9) is pressed under the action of elastic return of the side branch (7); the inner door panel (31) is bend with a radius that ensures an optimal contact with one of the sealing strips (15) of the base (3) of the profile (1). The bellows-seal gasket (20) and the profile (1) may be formed of plastic material in a single piece or fitted together.
    Type: Application
    Filed: August 12, 2003
    Publication date: March 18, 2004
    Inventors: Paolo Cittadini, Adriano Merla
  • 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: 6258307
    Abstract: A process for preparing a molding element for car bodies comprising the steps of: manufacturing a main body (2) of elongated conformation and manufacturing a continuous support element (7) carrying attachment projections (9) which are then connected with the main body (2) for engaging a corresponding anchoring region (5a) formed on a car body (5); the attachment projections (9) are rigidly in engagement with the continuous support element (7) which is fitted by sliding in a longitudinal housing (10) formed in the main body (2)and then axially fixed to this latter.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: July 10, 2001
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Pier Paolo Ferrante, Ralf Laudwein
  • Patent number: 6227634
    Abstract: A gasket made of a plastic material for refrigerator chests, including an inner door and an outer door, rigidly connected to each other by a foamed material injected in the hollow space between them for insulating purposes, in which the inner door is profiled along one or more sides with a groove is profiled alone one or more sides with a groove next to an extremity thereof overlaying the outer door, wherein the groove functions as a seat to receive an appropriate fastener for the gasket and the latter is fitted with a bellows-type section made of a soft plastic material capable of providing a closing seal between the inner door and the chest, and a base from which the fastener extends to the inner door, the gasket base being made of a rigid plastic material shaped by co-extrusion with the soft plastic material of the bellows-type portion and presents a substantially horizontal, flat or slightly curved configuration in the portion where the base overlays the extremity of the inner door, while presenting a sub
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: May 8, 2001
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Pier Paolo Ferrante
  • Patent number: 6190587
    Abstract: A method for forming products such as simulated leather including one or more layers from thermoplastic, thermosetting or elastomer materials all formed by slush-moulding, comprising: forming in a slush-moulding mould a first layer of compacted material representing the exposed layer of the finished product, on said first layer forming a second layer of expandable material by further slush-moulding, completing with heat the consolidation of said layers by gelling and expansion of said second layer, the free face of which has an irregular shape. To the layered material thus formed is coupled a support of rigid material without discontinuity points or regions between them by filling every possible interspace.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: February 20, 2001
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Giuseppe Luisetti
  • 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
  • Patent number: 6136407
    Abstract: A molding element for car bodies is provided which comprises a main body (2) of elongated conformation and attachment projections (9) operatively associated with the main body (2) and adapted to engage a corresponding anchoring region (5a) formed on a car body (5). The attachment projections (9) are rigidly in engagement with a continuous support element (7) to be fitted in a longitudinal housing (10) formed in the main body (2).
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: October 24, 2000
    Assignee: Industrie Ilpea, S.p.A.
    Inventors: Paolo Cittadini, Pier Paolo Ferrante, Ralf Laudwein
  • Patent number: 6117265
    Abstract: A method and apparatus for heat-welding corners lengths of profiles together, for sealing gaskets, where the profiles include at least one extendible or compressible air chamber and are cut at their ends at an angle. The method includes positioning two profiles, with one of the cut ends of each profile opposite each other inside a suitable device including clamps which make the positioning possible, heating the positioned ends until the positioned ends reach a softened state, choking the profiles so as to completely occlude the air chambers along choking sections, closing the clamps in order to cause the profiles to come into mutual mating contact at the heated ends, injecting air into the air chambers by perforating the air chambers in a region between the choking sections and the heated ends so as to apply pressure to walls of the profiles in that region, pressing the walls against walls of the clamps to join the heated ends by heat-welding under pressure, and opening the occluded sections.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: September 12, 2000
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Umberto Lovison
  • Patent number: 6022028
    Abstract: Gaskets especially for refrigerators are made from a polymeric material consisting of a mixture comprising a-olefin copolymers. The gaskets obtained therefrom are lighter, thinner and have better mechanical characteristics than those of the known art.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: February 8, 2000
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Giancarlo Buzzoni
  • Patent number: 5916076
    Abstract: The invention provides a plastics structural shape for refrigerator cabinets provided with a door and a door liner comprising a bellows gasket portion forming a seal between the door and the cabinet box part, the structural shape and the gasket portion being joined together or being integral with each other by being co-extruded from two materials having different rigidities so that the gasket portion can be easily detached from the structural shape when necessary along the region in which they are joined together, said structural shape having a channel arranged to receive a replacement bellows gasket portion, and at least one elastically yieldable lateral flange acting as a spring clip for snap-fitting the structural shape to the door liner, characterised in that within said structural shape said channel is defined by a pair of walls which extend vertically or obliquely from a base which when in its coupled operating position overlies the door and door liner along their joining line.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: June 29, 1999
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Adriano Merla
  • Patent number: 5900196
    Abstract: A process for forming such manufactured items as imitation leather, or the like, from thermoplastic materials, thermosetting materials or elastomers, having at least one foamed layer, characterized in that said process comprises the following steps: a) forming, inside a mold for slush molding, a first layer of material which will constitute the top (i.e.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: May 4, 1999
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Paolo Cittadini, Giancarlo Buzzoni
  • Patent number: 5676381
    Abstract: An apparatus including of a mold for slush molding articles of a least two colors; a tank; a separation wall disposed in the tank and dividing the tank into two spaces; a gasket mounted on a free edge of the separation wall which faces the mold, the gasket having a plurality of rigid inserts disposed therein in a predetermined distribution; and an actuator device which expands and retracts the rigid inserts thereby correspondingly expanding and retracting the gasket. A method for slush molding utilizes the apparatus.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: October 14, 1997
    Assignee: Industrie Ilpea S.P.A. - Malgesso
    Inventors: Giancarlo Buzzoni, Paolo Cittadini
  • Patent number: 5575485
    Abstract: This invention relates to a magnetic gasket particularly suitable for forming a seal between a fixed part and an openable part including in regions of curvilinear extension, for example between the body and door of a vehicle, of the type comprising an element for fixing to one of said parts and a seat housing a magnetized bar (11) of substantially rectangular cross-section in which said fixing element and said seat (8) for the magnetized bar are connected together by an extendable deformable tubular chamber, characterised in that said bar (11) is magnetized along at least one of the two shorter opposing sides (19, 19') of its substantially rectangular cross-section, said magnetized side facing when in its operating position the part with which contact is to be made for sealing purposes.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: November 19, 1996
    Assignee: Industrie Ilpea S.p.A.
    Inventors: Adriano Merla, Paolo Cittadini