Patents by Inventor Paolo Nesti
Paolo Nesti 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: 11359711Abstract: A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a cam system (20, 22; 32a, 32b) operating between a fixed bushing (11) and a mobile bushing (9). The device is configured to obstruct the approach between the active surfaces (8a, 10a) or to facilitate the approach of the active surfaces.Type: GrantFiled: December 1, 2016Date of Patent: June 14, 2022Assignee: PIAGGIO & C. S.p.A.Inventors: Walter Mariotti, Giacomo Freschi, Paolo Nesti
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Publication number: 20210380200Abstract: The transmission unit (15) for motor vehicle (1) comprises a shaft (23) of the driving wheel, operatively connected to a main drive (19, 97) to control forward drive, and a reverse drive electric motor (21). The transmission unit further comprises a control bushing (47) rotated by the reverse drive electric motor (21), and a driven transmission bushing (63), operatively connected to the shaft (23) of the driving wheel. An actuator (121) is provided for controlling mutual coupling between the control bushing (47) and the driven transmission bushing (63) to transmit the motion of the reverse drive electric motor (21) to the shaft (23) of the driving wheel.Type: ApplicationFiled: October 28, 2019Publication date: December 9, 2021Inventors: Paolo NESTI, Stefano DOVERI
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Patent number: 11105408Abstract: A CVT transmission device (1) comprises a drive pulley (4) provided with a mobile bushing (9), a fixed bushing (11), a cam system (95,111; 97,113) comprising at least one driven cam portion (95) of mobile bushing (9) and a cam portion (111) of the fixed bushing (11). The mobile bushing (9) comprises a main wall (91) annular with respect to the axis of rotation (X), having an inner surface (91a) which delimits a housing compartment (91c) and said driven cam portion (95) protrudes radially internally from said inner surface (91a). The drive cam portion (111) of the fixed bushing (11) is suitable to penetrate axially in said housing compartment of the mobile bushing (9).Type: GrantFiled: September 19, 2017Date of Patent: August 31, 2021Assignee: PIAGGIO & C. S.P.A.Inventors: Paolo Nesti, Walter Mariotti, Giacomo Freschi
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Publication number: 20210190195Abstract: A CVT transmission device (1) comprises a drive pulley (4) provided with a mobile bushing (9), a fixed bushing (11), a cam system (95,111; 97,113) comprising at least one driven cam portion (95) of mobile bushing (9) and a cam portion (111) of the fixed bushing (11). The mobile bushing (9) comprises a main wall (91) annular with respect to the axis of rotation (X), having an inner surface (91a) which delimits a housing compartment (91c) and said driven cam portion (95) protrudes radially internally from said inner surface (91a). The drive cam portion (111) of the fixed bushing (11) is suitable to penetrate axially in said housing compartment of the mobile bushing (9).Type: ApplicationFiled: September 19, 2017Publication date: June 24, 2021Inventors: Paolo NESTI, Walter MARIOTTI, Giacomo FRESCHI
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Patent number: 11015697Abstract: A continuously variable transmission device (1) for a two-, three- or four-wheel motorcycle comprises a gear shift regulation device provided with a slide (40) axially slidable and suitable to engage special rollers (18) to hold them during the gear shift. A mobile bushing (9) is suitable to influence the slide (40) to cause its translation from a rearward position to a forward limit position to engage the special rollers (18).Type: GrantFiled: December 1, 2016Date of Patent: May 25, 2021Assignee: PIAGGIO & C. S.P.A.Inventors: Walter Mariotti, Giacomo Freschi, Paolo Nesti
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Patent number: 10865860Abstract: A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a gear shift regulation device suitable to operate on special rollers (18) through an adjustable axial action independently of the number of engine revolutions. The device influences the centrifugal movement of the rollers (18) and thus influences the gear shift.Type: GrantFiled: December 1, 2016Date of Patent: December 15, 2020Assignee: PIAGGIO & C. S.p.A.Inventors: Walter Mariotti, Giacomo Freschi, Paolo Nesti
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Publication number: 20180372191Abstract: A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a gear shift regulation device suitable to operate on special rollers (18) through an adjustable axial action independently of the number of engine revolutions. The device influences the centrifugal movement of the rollers (18) and thus influences the gear shift.Type: ApplicationFiled: December 1, 2016Publication date: December 27, 2018Inventors: Walter MARIOTTI, Giacomo FRESCHI, Paolo NESTI
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Publication number: 20180355966Abstract: A continuously variable transmission device (1) for a two-, three- or four-wheel motorcycle comprises a gear shift regulation device provided with a slide (40) axially slidable and suitable to engage special rollers (18) to hold them during the gear shift. A mobile bushing (9) is suitable to influence the slide (40) to cause its translation from a rearward position to a forward limit position to engage the special rollers (18).Type: ApplicationFiled: December 1, 2016Publication date: December 13, 2018Inventors: Walter Mariotti, Giacomo Freschi, Paolo Nesti
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Publication number: 20180355967Abstract: A continuously variable transmission device (1) for a two-wheel, three-wheel or four-wheel motorcycle includes a cam system (20, 22; 32a, 32b) operating between a fixed bushing (11) and a mobile bushing (9). The device is configured to obstruct the approach between the active surfaces (8a, 10a) or to facilitate the approach of the active surfaces.Type: ApplicationFiled: December 1, 2016Publication date: December 13, 2018Inventors: Walter MARIOTTI, Giacomo FRESCHI, Paolo NESTI
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Publication number: 20180223974Abstract: A four-speed transmission (1) for motorcycles has performances similar to those of a continuously variable transmission but, at the same time, a high yield and an easy and automatic operation and it comprises: a crankshaft (2) with a first and a second pulley (9, 10) mounted thereon; a primary shaft (3), with third and fourth pulley (10, 14) and a first and a second gear (18, 19) mounted thereon; transmission belts (11, 13) connecting said pulleys for the transmission of the first and the second speed and of the third and the fourth speed respectively; a secondary shaft (4) with a third and a fourth gear (20, 21) engaged with said first and second gear (18, 19) for transmitting the first and the third speed, and the second and the fourth speed respectively; a first synchronizer (16), which activates the transmission of the third and the fourth speed; and a second actuated synchronizer (17), actuating the transmission of the second and the fourth speed; wherein a first and a second free wheel (15, 22) can releType: ApplicationFiled: August 1, 2016Publication date: August 9, 2018Applicant: Piaggio & C. S.p.AInventors: Paolo NESTI, Walter MARIOTTI
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Publication number: 20180222550Abstract: A three-speed motorcycle transmission (1), to be used aboard a motorcycle as transmission means for 5 transmitting the motion generated by an engine to a driving wheel, having performances similar to those of a continuously variable transmission but, at the same time, a high efficiency and an easy automatic operation, comprises: a crankshaft (2), which receives the motion by 0 an engine, having a first pulley (9) mounted thereon; a primary shaft (4), having a second pulley (12) and a first set of three gears (21, 22, 23) mounted thereon; a transmission belt (11) connecting said first and said second pulley (9, 12); a secondary shaft (4), connected 5 to a driving wheel, comprising a second set of three gears (31, 32, 33), engaged in pairs with respective gears (21, 22, 23) of the first set of three gears for the transmission of the first, second and third speed; a clutch (10) acting selectively on at least two pairs of 0 gears assigned to the transmission of the second and third speeds; and two free wheels (15Type: ApplicationFiled: August 1, 2016Publication date: August 9, 2018Applicant: Piaggio & C. S.p.AInventors: Paolo Nesti, Walter Mariotti
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Patent number: 9518641Abstract: A continuously variable transmission system for a motorcycle includes a first drive sheave (12) operated by a transmission half-shaft (14) and a second driven sheave, connected by a V-belt. The drive sheave (12) has a first half-sheave (16) and a second half-sheave (18) substantially conical, sliding axially aligned, joined in rotation. The first half sheave (16) is fitted internally with a speed regulator composed of centrifugal masses (20) which move to cause the axial shift in the direction of extension of the transmission half-shaft (14), of the first half-sheave (16) relative to the corresponding second half-sheave (18). A device (10) for regulating the gear change curve is provided with an electromechanical actuator to cause selective intervention of a determined group of centrifugal masses (20) to vary, for the same number of revs of the engine, the centrifugal force needed to achieve the axial shift of the first half-sheave (16).Type: GrantFiled: December 12, 2012Date of Patent: December 13, 2016Assignee: PIAGGIO & C. S.p.A.Inventors: Walter Mariotti, Paolo Nesti
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Patent number: 8893374Abstract: Method and Apparatus are provided for automatically disposing plural wires along predetermined trajectories, wherein the plural wires extend from coils wound in slots of dynamoelectric machine cores. Plural wires forming leads are located in predetermined positions and caused to extend along predetermined directions by means of manipulating equipment and tooling which operates automatically. In addition, the equipment and tooling cause the plural wires to become twisted and cut to form portions for connection to terminals. The tooling is provided with reference surfaces and seats which are used to bend the plural wires along the predetermined trajectories and to provide a position constraint for the portions becoming twisted. Apparatus can be provided for positioning portions of a plurality of restraining members in the spacing existing between the bridges of the coils and the end faces of a dynamo electric machine core.Type: GrantFiled: May 22, 2013Date of Patent: November 25, 2014Assignee: ATOP S.p.A.Inventors: Massimo Ponzio, Gianfranco Stratico, Rubino Corbinelli, Paolo Nesti
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Publication number: 20140315670Abstract: A continuously variable transmission system for a motorcycle includes a first drive sheave (12) operated by a transmission half-shaft (14) and a second driven sheave, connected by a V-belt. The drive sheave (12) has a first half-sheave (16) and a second half-sheave (18) substantially conical, sliding axially aligned, joined in rotation. The first half sheave (16) is fitted internally with a speed regulator composed of centrifugal masses (20) which move to cause the axial shift in the direction of extension of the transmission half-shaft (14), of the first half-sheave (16) relative to the corresponding second half-sheave (18). A device (10) for regulating the gear change curve is provided with an electromechanical actuator to cause selective intervention of a determined group of centrifugal masses (20) to vary, for the same number of revs of the engine, the centrifugal force needed to achieve the axial shift of the first half-sheave (16).Type: ApplicationFiled: December 12, 2012Publication date: October 23, 2014Applicant: PIAGGIO & C. S.p.A.Inventors: Walter Mariotti, Paolo Nesti
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Publication number: 20140000095Abstract: Method and Apparatus are provided for automatically disposing plural wires along predetermined trajectories, wherein the plural wires extend from coils wound in slots of dynamoelectric machine cores. Plural wires forming leads are located in predetermined positions and caused to extend along predetermined directions by means of manipulating equipment and tooling which operates automatically. In addition, the equipment and tooling cause the plural wires to become twisted and cut to form portions for connection to terminals. The tooling is provided with reference surfaces and seats which are used to bend the plural wires along the predetermined trajectories and to provide a position constraint for the portions becoming twisted. Apparatus can be provided for positioning portions of a plurality of restraining members in the spacing existing between the bridges of the coils and the end faces of a dynamo electric machine core.Type: ApplicationFiled: May 22, 2013Publication date: January 2, 2014Applicant: ATOP S.p.A.Inventors: Massimo Ponzio, Gianfranco Stratico, Rubino Corbinelli, Paolo Nesti
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Patent number: 8468686Abstract: Method and Apparatus are provided for automatically disposing plural wires along predetermined trajectories, wherein the plural wires extend from coils wound in slots of dynamoelectric machine cores. Plural wires forming leads (16?, 17?) are located in predetermined positions and caused to extend along predetermined directions (33,34) by means of manipulating equipment and tooling (3) which operates automatically. In addition, the equipment and tooling (3) cause the plural wires to become twisted and cut to form portions (16?, 17?) for connection to terminals. The tooling (3) is provided with reference surfaces (21,23) and seats (26,27) which are used to bend the plural wires along the predetermined trajectories and to provide a position constraint for the portions becoming twisted.Type: GrantFiled: November 5, 2007Date of Patent: June 25, 2013Assignee: ATOP S.p.A.Inventors: Massimo Ponzio, Gianfranco Stratico, Rubino Corbinelli, Paolo Nesti
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Publication number: 20100043205Abstract: Method and Apparatus are provided for automatically disposing plural wires along predetermined trajectories, wherein the plural wires extend from coils wound in slots of dynamoelectric machine cores. Plural wires forming leads (16?, 17?) are located in predetermined positions and caused to extend along predetermined directions (33,34) by means of manipulating equipment and tooling (3) which operates automatically. In addition, the equipment and tooling (3) cause the plural wires to become twisted and cut to form portions (16?, 17?) for connection to terminals. The tooling (3) is provided with reference surfaces (21,23) and seats (26,27) which are used to bend the plural wires along the predetermined trajectories and to provide a position constraint for the portions becoming twisted.Type: ApplicationFiled: November 5, 2007Publication date: February 25, 2010Applicant: Atop S.p.A.Inventors: Massimo Ponzio, Gianfranco Stratico, Rubino Corbinelli, Paolo Nesti