Patents by Inventor Alessandro Spaggiari
Alessandro Spaggiari 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).
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Patent number: 7832982Abstract: A centrifugal fan comprises a casing (2) and an impeller (5) that is mounted in the casing (2) and turns about a defined axis of rotation (X). The casing (2) has an axial inlet opening, through which air is drawn in, and a tangential air discharge opening (7). The tangential discharge opening (7) is delimited by a first edge (8) that is substantially parallel with the axis of rotation (X) and is located in the vicinity of the impeller (5), by a second edge (9) opposite the first edge (8) and spaced from the impeller (5) and by two lateral edges (10), each joining the first edge (8) to the second edge (9). The centrifugal fan also comprises an appendage (12) located in the vicinity of the tangential discharge opening (7), delimited by the first edge (8) and having a convex surface (16) inside the casing (2) and a connecting surface (15) between the convex surface (16) and the first stage (8).Type: GrantFiled: November 24, 2005Date of Patent: November 16, 2010Assignee: Spal Automotive S.r.l.Inventor: Alessandro Spaggiari
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Publication number: 20100251538Abstract: A method for assembling an electric motor of the type comprising a stator unit (5) and a rotary unit (6) housed in a containment compartment (2a) delimited by a casing (2), comprises the step of exposing the compartment (2a) to a different pressure relative to the outside environment and the step of checking for the passage of fluid between the outside environment and the compartment (2a) in order to test the motor (1) hermetic seal.Type: ApplicationFiled: June 18, 2010Publication date: October 7, 2010Applicant: SPAL AUTOMOTIVE S. R. L.Inventor: Alessandro SPAGGIARI
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Patent number: 7785069Abstract: The ventilation unit has an electric motor, the output shaft of which is fitted with a fan having a cup-shaped central body and a number of blades. The central body is defined by a base wall, and by an annular wall from whose outer face the blades extend. And the main characteristic of the present inventive subject matter lies in through windows being formed in the annular wall of the central body to channel out, in use, any condensate formed inside the central body.Type: GrantFiled: August 17, 2007Date of Patent: August 31, 2010Assignee: Spal Automotive S.r.l.Inventor: Alessandro Spaggiari
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Patent number: 7768167Abstract: A method for assembling an electric motor of the type comprising a stator unit (5) and a rotary unit (6) housed in a containment compartment (2a) delimited by a casing (2), comprises the step of exposing the compartment (2a) to a different pressure relative to the outside environment and the step of checking for the passage of fluid between the outside environment and the compartment (2a) in order to test the motor (1) hermetic seal.Type: GrantFiled: May 8, 2007Date of Patent: August 3, 2010Assignee: Spal Automotive s.r.l.Inventor: Alessandro Spaggiari
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Publication number: 20100158719Abstract: An electric ventilator (1) comprises a frame (2), a pair of centrifugal fans (3) mounted on the frame (2), an electric motor (4) for driving the fans (3) and axially interposed between the fans (3), and a unit (5) for controlling the speed of the motor (4); the speed control unit (5) comprises a plurality of electrical switching resistors (7) housed in a box-shaped container (8) that can be closed and sealed; the container (8) is mounted on the frame (2) and has the shape of a bridge so as to surround the casing (13) of the motor (4) without touching it.Type: ApplicationFiled: May 28, 2008Publication date: June 24, 2010Applicant: SPAL AUTOMOTIVE S.R.L.Inventor: Alessandro Spaggiari
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Publication number: 20100068081Abstract: In an axial fan (1), equipped with a frame (13), a motor (2) and an impeller (3) whose hub (15) is rotationally driven by the motor (2) and where the hub (15) is cup-shaped, with an end wall (16) and an annular side wall (17) to partially contain the motor (2), the motor (2) protrudes from the hub (15) with its longitudinal end (23) which is supported and laterally surrounded by a crown (12) of the frame (13) and the crown (12) has an annular end strip (21) facing the hub (15) and laterally surrounding an annular end strip (22) of the hub (15) which faces the crown (12).Type: ApplicationFiled: June 28, 2007Publication date: March 18, 2010Applicant: SPAL AUTOMOTIVE S.r.I.Inventor: Alessandro Spaggiari
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Patent number: 7586227Abstract: The invention relates to an electric motor for electric fans having a casing with at least a lid with a hermetic seal and a method for assembly of the motor. The motor (1) has a casing (2) consisting of a cup-shaped part (5) and a lid (6) and an O-ring seal (7) inserted between them, the seal (7) comprising retaining means (8) so that it remains applied to one of the elements, either the lid (6) or the cup-shaped part (5). The method for assembly includes the steps of inserting an O-ring seal (7) in a seat (10) in the lid (6) or in the cup-shaped part (5), the O-ring seal (7) having retaining rings (11); and inserting each retaining ring (11) on a respective fixing pin (15) present in the lid (6) or in the cup-shaped part (5), so that the seal (7) remains positioned in the seat (10) applied to one of the elements, either the lid (6) or the cup-shaped part (5).Type: GrantFiled: September 28, 2004Date of Patent: September 8, 2009Assignee: Spal Automotive S.r.l.Inventor: Alessandro Spaggiari
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Publication number: 20090121569Abstract: A method for assembling an electric motor of the type comprising a stator unit (5) and a rotary unit (6) housed in a containment compartment (2a) delimited by a casing (2), comprises the step of exposing the compartment (2a) to a different pressure relative to the outside environment and the step of checking for the passage of fluid between the outside environment and the compartment (2a) in order to test the motor (1) hermetic seal.Type: ApplicationFiled: May 8, 2007Publication date: May 14, 2009Inventor: Alessandro Spaggiari
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Publication number: 20090115279Abstract: A rotor (1) for an electric motor with permanent magnets (10) has a principal axis (D), comprises a laminated core (2) delimited by a first and a second end wall (4, 5) and by a lateral surface (6) and has a hole (7) for coupling to a motor shaft (8) and a plurality of longitudinal slots (9) for housing the magnets (10); the rotor also comprises positioning devices (20) for stabilizing the magnets (10) in the slots (9).Type: ApplicationFiled: June 28, 2006Publication date: May 7, 2009Inventor: Alessandro Spaggiari
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Patent number: 7455502Abstract: Described is an axial fan in which an impeller (1) comprises a hub (2), motor-powered so that it rotates about its own central axis (3) and a plurality of blades (5) extending from the hub (2) in directions transversal to the hub (2) axis of rotation (3); the hub having a cup shape and formed by a ring-shaped side wall (7) and a bottom wall (6) which has a plurality of long ribs (20) arranged in a radial direction and extending in height towards the hub (2) cavity, each of the ribs (20) abutting on the internal face of the ring-shaped side wall (7) and delimiting, together with said ring-shaped side wall, a corner area of the bottom wall (6) positioned in front of the rib (20) with reference to the hub (2) direction of rotation (V); each corner area having a through-hole (9) for discharging any debris, in particular water, sand, soil or sludge, from the hub (2) cavity to the outside of the hub (2) The through-holes (9) are evenly distributed along a circle centered on the hub (2) axis of rotation (3) and haveType: GrantFiled: February 1, 2005Date of Patent: November 25, 2008Assignee: SPAL Automotive S.R.L.Inventor: Alessandro Spaggiari
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Patent number: 7422420Abstract: An axial fan (1) rotating in a plane (XY) about an axis (2) comprises a central hub (3), a plurality of blades (4), which have a root (5) and a tip (6), the blades (4) being delimited by a convex leading edge (7) and by a concave trailing edge (8), their projections in the fan rotation plane each being formed by circular arc segments; the blades (4) are made from sections with aerodynamic profiles, each with decreasing length and more curved from the perimeter to the hub.Type: GrantFiled: July 5, 2005Date of Patent: September 9, 2008Assignee: SPAL Automotive S.R.L.Inventor: Alessandro Spaggiari
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Patent number: 7419359Abstract: An axial impeller (1), with enhanced flow, rotating in a plane (XY) about an axis (2) comprises a central hub (3), whose diameter is smaller than the diameter of the drive motor (3a), a plurality of blades (4) having a base (5) and a tip (6), the blades (4) being delimited by a convex leading edge (7) and by a convex trailing edge (8), whose projections onto the plane of rotation of the impeller are each defined by circular arc segments; the blades (4) are composed of sections having aerodynamic profiles (18) each having a decreasing length and an increasingly curved shape starting at the edge towards the hub; towards the hub each blade (4) has a box-shaped portion (20) that forms a wide scat (21) providing housing for an drive motor (3a) having a diameter that corresponds substantially to the seat (21).Type: GrantFiled: July 18, 2005Date of Patent: September 2, 2008Assignee: SPAL Automotive S.R.LInventor: Alessandro Spaggiari
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Publication number: 20080193285Abstract: A centrifugal fan comprises a casing (2) and an impeller (5) that is mounted in the casing (2) and turns about a defined axis of rotation (X). The casing (2) has an axial inlet opening, through which air is drawn in, and a tangential air discharge opening (7). The tangential discharge opening (7) is delimited by a first edge (8) that is substantially parallel with the axis of rotation (X) and is located in the vicinity of the impeller (5), by a second edge (9) opposite the first edge (8) and spaced from the impeller (5) and by two lateral edges (10), each joining the first edge (8) to the second edge (9). The centrifugal fan also comprises an appendage (12) located in the vicinity of the tangential discharge opening (7), delimited by the first edge (8) and having a convex surface (16) inside the casing (2) and a connecting surface (15) between the convex surface (16) and the first stage (8).Type: ApplicationFiled: November 24, 2005Publication date: August 14, 2008Inventor: Alessandro Spaggiari
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Publication number: 20080138500Abstract: The machine (1) for manufacturing electrical circuits (2) from a web (3) of electrically conductive material comprises means (4) for feeding the web (3) along a defined path (P), a stamping station (11) for applying a certain quantity of insulating varnish on certain portions of the web (3) and a punching station (22) for cutting the electrical circuits (2) out of the web (3).Type: ApplicationFiled: January 24, 2006Publication date: June 12, 2008Inventor: Alessandro Spaggiari
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Publication number: 20080096481Abstract: Described is a motor vehicle ventilating device equipped with a housing (3), fastening elements (4) for attaching the housing (3) to the roof of the cabin of a motor vehicle (2) and a fan (5) positioned in the housing (3); the housing (3) defines a closed chamber (9) equipped with an air inlet opening (10) and at least one air outlet opening (11) for delivering to the vehicle cabin through the outlet opening (11) the air that is drawn into the housing (3) by the fan (5) through the inlet opening (10); the housing (3) is defined by two half-shells (12, 13) joined to each other in airtight manner, the first half-shell (12) being designed to be attached to the cabin roof and being equipped with a seat (18) for mounting the motor (6) of the fan (5) impeller (7), and the second half-shell (13) having the air inlet and outlet openings (10, 11) made in it; in an alternative embodiment, the motor (6) of the fan (5) impeller (7) is made in the second half-shell (13); the fan is of the axial-flow type and the air outleType: ApplicationFiled: July 8, 2005Publication date: April 24, 2008Inventor: Alessandro Spaggiari
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Publication number: 20080050231Abstract: The ventilation unit has an electric motor, the output shaft of which is fitted with a fan having a cup-shaped central body and a number of blades. The central body is defined by a base wall, and by an annular wall from whose outer face the blades extend. And the main characteristic of the present inventive subject matter lies in through windows being formed in the annular wall of the central body to channel out, in use, any condensate formed inside the central body.Type: ApplicationFiled: August 17, 2007Publication date: February 28, 2008Inventor: Alessandro Spaggiari
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Publication number: 20080044292Abstract: An axial impeller (1), with enhanced flow, rotating in a plane (XY) about an axis (2) comprises a central hub (3), whose diameter is smaller than the diameter of the drive motor (3a), a plurality of blades (4) having a base (5) and a tip (6), the blades (4) being delimited by a convex leading edge (7) and by a convex trailing edge (8), whose projections onto the plane of rotation of the impeller are each defined by circular arc segments; the blades (4) are composed of sections having aerodynamic profiles (18) each having a decreasing length and an increasingly curved shape starting at the edge towards the hub; towards the hub each blade (4) has a box-shaped portion (20) that forms a wide scat (21) providing housing for an drive motor (3a) having a diameter that corresponds substantially to the seat (21).Type: ApplicationFiled: July 18, 2005Publication date: February 21, 2008Applicant: Spal Automotive S.r.l.Inventor: Alessandro Spaggiari
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Patent number: D593192Type: GrantFiled: June 19, 2008Date of Patent: May 26, 2009Assignee: SPAL Automotive S.R.L.Inventor: Alessandro Spaggiari
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Patent number: D599457Type: GrantFiled: January 14, 2009Date of Patent: September 1, 2009Assignee: Spal Automotive S.R.L.Inventor: Alessandro Spaggiari
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Patent number: D609323Type: GrantFiled: June 18, 2009Date of Patent: February 2, 2010Assignee: Spal Automotive S.R.L.Inventor: Alessandro Spaggiari