Patents by Inventor Piero Losi
Piero Losi 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: 11548319Abstract: Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (?); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) anType: GrantFiled: September 20, 2019Date of Patent: January 10, 2023Assignee: PIRELLI TYRE S.p.A.Inventor: Piero Losi
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Publication number: 20220402300Abstract: Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (?); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) anType: ApplicationFiled: August 25, 2022Publication date: December 22, 2022Applicant: PIRELLI TYRE S.P.A.Inventor: Piero LOSI
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Patent number: 10625481Abstract: A green tyre has a symmetric profile in radial section having a radially outer tread band, two radially inner beads and two sidewalls each extended from one edge of the tread band to one of the beads. During a moulding and vulcanisation treatment of the green tyre, a movement is imposed to the tread band with respect to the beads along a direction parallel to a rotation axis of the tyre, to obtain a moulded and vulcanised tyre having an asymmetric profile in radial section. A mould for vulcanizing tyres for vehicle wheels is also described, having a tread wall axially asymmetric with respect to a middle line plane of the mould.Type: GrantFiled: June 27, 2018Date of Patent: April 21, 2020Assignee: PIRELLI TYRE S.P.A.Inventor: Piero Losi
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Publication number: 20200070580Abstract: Method for controlling the symmetry of the footprint area of a tyre miming on a straight trajectory with camber angle different from zero, wherein the method comprises the steps: —reducing the contact pressure of the tyre (2) on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); —disposing any medium line (Im) of the tread band (9) placed in correspondence with the footprint area substantially parallel to the ground; the invention also defines a tyre and a wheel for motor-vehicles, wherein the medium line (Im) of the tread hand (9) and the rotation axis (X-X) of the tyre (2) form an angle (a) substantially equal in absolute value to the camber angle (?); the invention also encompasses a process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle (a) different from zero is formed between any medium line (Im) of the tread band (9) anType: ApplicationFiled: September 20, 2019Publication date: March 5, 2020Applicant: PIRELLI TYRE S.P.A.Inventor: Piero LOSI
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Patent number: 10457099Abstract: A method for controlling the symmetry of the footprint area of a tire running on a straight trajectory with camber angle different from zero, includes the steps: reducing the contact pressure of the tire on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); and disposing any medium line of the tread band placed in correspondence with the footprint area substantially parallel to the ground. A tire and a wheel for motor-vehicles, wherein the medium line of the tread band and the rotation axis of the tire form an angle substantially equal in absolute value to the camber angle. A process for manufacturing such tires, wherein a green tire with symmetric outer profile is deformed during the vulcanizing and moulding step until a predetermined angle different from zero is formed between any medium line of the tread band and the rotation axis of the vulcanized tire.Type: GrantFiled: June 6, 2013Date of Patent: October 29, 2019Assignee: PIRELLI TYRE S.P.A.Inventor: Piero Losi
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Publication number: 20180304566Abstract: A green tyre has a symmetric profile in radial section having a radially outer tread band, two radially inner beads and two sidewalls each extended from one edge of the tread band to one of the beads. During a moulding and vulcanisation treatment of the green tyre, a movement is imposed to the tread band with respect to the beads along a direction parallel to a rotation axis of the tyre, to obtain a moulded and vulcanised tyre having an asymmetric profile in radial section. A mould for vulcanizing tyres for vehicle wheels is also described, having a tread wall axially asymmetric with respect to a middle line plane of the mould.Type: ApplicationFiled: June 27, 2018Publication date: October 25, 2018Inventor: Piero LOSI
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Patent number: 10035314Abstract: A green tire has a symmetric profile in radial section having a radially outer tread band, two radially inner beads and two sidewalls each extended from one edge of the tread band to one of the beads. During a molding and vulcanization treatment of the green tire, a movement is imposed to the tread band with respect to the beads along a direction parallel to a rotation axis of the tire, to obtain a molded and vulcanized tire having an asymmetric profile in radial section. A mold for vulcanizing tires for vehicle wheels is also described, having a tread wall axially asymmetric with respect to a middle line plane of the mold.Type: GrantFiled: March 31, 2014Date of Patent: July 31, 2018Assignee: PIRELLI TYRE S.P.A.Inventor: Piero Losi
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Patent number: 9718310Abstract: A wheel for vehicles includes: a rim and a tire mounted on the rim and inflated to an operating pressure; axial end portions of a tread band of the tire radially spaced apart the same distance from a rotation axis of the wheel and a median circumferential line of the tread band axially shifted by a predetermined distance relative to a mid-line plane of the wheel; the wheel mounted on a car with a camber angle substantially zero and with the median circumferential line shifted toward the outside of the car relative to the mid-line plane.Type: GrantFiled: March 27, 2013Date of Patent: August 1, 2017Assignee: PIRELLI TYRE S.P.A.Inventor: Piero Losi
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Patent number: 9333806Abstract: A high performance rain tire includes a tread band, having an inner portion and an outer portion as well as a central zone. There are formed in the tread band: two circumferential grooves in the inner portion, a central circumferential groove and a plurality of inner transverse grooves and a plurality of outer transverse grooves, wherein the inner transverse grooves include a central inner section which defines an angle with respect to the equatorial plane of between approximately ?95° and approximately ?135° and the outer transverse grooves include a central outer section which defines an angle, relative to the equatorial plane, of between approximately +125° and approximately +165°.Type: GrantFiled: September 27, 2011Date of Patent: May 10, 2016Assignee: PIRELLI TYRE S.P.A.Inventors: Piero Losi, Alfredo Balini, Maurizio Boiocchi
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Publication number: 20160039159Abstract: A green tyre has a symmetric profile in radial section having a radially outer tread band, two radially inner beads and two sidewalls each extended from one edge of the tread band to one of the beads. During a moulding and vulcanisation treatment of the green tyre, a movement is imposed to the tread band with respect to the beads along a direction parallel to a rotation axis of the tyre, to obtain a moulded and vulcanised tyre having an asymmetric profile in radial section. A mould for vulcanizing tyres for vehicle wheels is also described, having a tread wall axially asymmetric with respect to a middle line plane of the mould.Type: ApplicationFiled: March 31, 2014Publication date: February 11, 2016Inventor: Piero LOSI
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Publication number: 20150174959Abstract: A method for controlling the symmetry of the footprint area of a tyre running on a straight trajectory with camber angle different from zero, includes the steps: reducing the contact pressure of the tyre on the footprint area at an inner shoulder (in case of negative camber) or at an outer shoulder (in case of positive camber); and disposing any medium line of the tread band placed in correspondence with the footprint area substantially parallel to the ground. A tyre and a wheel for motor-vehicles, wherein the medium line of the tread band and the rotation axis of the tyre form an angle substantially equal in absolute value to the camber angle. A process for manufacturing such tyres, wherein a green tyre with symmetric outer profile is deformed during the vulcanising and moulding step until a predetermined angle different from zero is formed between any medium line of the tread band and the rotation axis of the vulcanised tyre.Type: ApplicationFiled: June 5, 2013Publication date: June 25, 2015Applicant: PIRELLI TYRE S.P.A.Inventor: Piero Losi
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Publication number: 20150090407Abstract: A wheel for vehicles includes: a rim and a tyre mounted on the rim and inflated to an operating pressure; axial end portions of a tread band of the tyre radially spaced apart the same distance from a rotation axis of the wheel and a median circumferential line of the tread band axially shifted by a predetermined distance relative to a mid-line plane of the wheel; the wheel mounted on a car with a camber angle substantially zero and with the median circumferential line shifted toward the outside of the car relative to the mid-line plane.Type: ApplicationFiled: March 27, 2013Publication date: April 2, 2015Inventor: Piero Losi
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Publication number: 20130213540Abstract: A high performance rain tyre includes a tread band, having an inner portion and an outer portion as well as a central zone. There are formed in the tread band: two circumferential grooves in the inner portion, a central circumferential groove and a plurality of inner transverse grooves and a plurality of outer transverse grooves, wherein the inner transverse grooves include a central inner section which defines an angle with respect to the equatorial plane of between approximately ?95° and approximately ?135° and the outer transverse grooves include a central outer section which defines an angle, relative to the equatorial plane, of between approximately +125° and approximately +165°.Type: ApplicationFiled: September 27, 2011Publication date: August 22, 2013Inventors: Piero Losi, Alfredo Balini, Maurizio Boiocchi
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Patent number: 8104523Abstract: A pneumatic tire has a carcass structure having at least one carcass ply and at least one annual reinforcing structure associated with the carcass ply, a tread band made of an elastomeric material at a radially outer position with respect to the carcass structure, a belt structure interposed between the carcass structure and the tread band and a pair of axially opposite side walls on the carcass structure, wherein the tread band has i) at least one first sector, radially extending, substantially of a first elastomeric material; ii) a plurality of second sectors radially extending, positioned at axially opposite sides of the at least one first sector and substantially of a second elastomeric material; iii) at least one longitudinal groove formed in the at least one first sector and extending substantially for the entire circumferential development of the tread band, wherein the first elastomeric material has a modulus of elasticity under compression at 23° C.Type: GrantFiled: December 30, 2003Date of Patent: January 31, 2012Assignee: Pirelli Pneumatici S.p.A.Inventors: Piero Losi, Pierluigi De Cancellis, Gaetano Lo Presti, Rodolfo Noto, Claudio Lacagnina
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Publication number: 20080105353Abstract: A pneumatic tire includes a carcass structure, at least one annular reinforcing structure, a tread band, a belt structure, and axially opposite sidewalls. The tread band includes at least one radially inner layer and a radially outer layer. The at least one radially inner layer includes a first modulus of elasticity under compression, the radially outer layer includes a second modulus of elasticity under compression, and the first modulus is greater than the second. The at least one radially inner layer includes a plurality of circumferential abutment elements that radially extend into the radially outer layer and are axially distributed along a transverse development of the tread band. A related process includes making carcass and belt structures, disposing the at least one first layer in a radially outer position with respect to the belt structure, and disposing the at least one second layer on the at least one first layer.Type: ApplicationFiled: April 28, 2003Publication date: May 8, 2008Inventors: Piero Losi, Pierluigi De Cancellis, Gaetano Lo Presti, Rodolfo Noto, Claudio Lacagnina
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Publication number: 20070295433Abstract: A pneumatic tire includes a carcass structure, tread band, belt structure, and sidewalls. The carcass structure includes at least one carcass ply and at least one annular reinforcing structure associated with the at least one carcass ply. The tread band includes first and second sectors. The first sectors are axially spaced apart from each other and tapered along a radially inner direction. The second sectors are axially spaced apart from each other and tapered along a radially outer direction. The first and second sectors are disposed axially side-by-side, one after the other, along a transverse development of the tread band. A ratio of Shore A hardness at 23° C. of the elastomeric material of the first sectors to Shore A hardness at 23° C. of the elastomeric material of the second sectors is greater than 1.10:1. A process for manufacturing the tire is also disclosed.Type: ApplicationFiled: September 30, 2003Publication date: December 27, 2007Inventors: Piero Losi, Pierluigi De Cancellis, Gaetano Lo Presti, Rodolfo Noto, Claudio Lacagnina
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Publication number: 20070187013Abstract: A pneumatic tire has a carcass structure having at least one carcass ply and at least one annual reinforcing structure associated with the carcass ply, a tread band made of an elastomeric material at a radially outer position with respect to the carcass structure, a belt structure interposed between the carcass structure and the tread band and a pair of axially opposite side walls on the carcass structure, wherein the tread band has i) at least one first sector, radially extending, substantially of a first elastomeric material; ii) a plurality of second sectors radially extending, positioned at axially opposite sides of the at least one first sector and substantially of a second elastomeric material; iii) at least one longitudinal groove formed in the at least one first sector and extending substantially for the entire circumferential development of the tread band, wherein the first elastomeric material has a modulus of elasticity under compression at 23° C.Type: ApplicationFiled: December 30, 2003Publication date: August 16, 2007Applicant: PIRELLI PNEUMATICI S.P.A.Inventors: Piero Losi, Pierluigi De Cancellis, Gaetano Lo Presti, Rodolfo Noto, Claudio Lacagnina
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Patent number: D751493Type: GrantFiled: September 20, 2013Date of Patent: March 15, 2016Assignee: Pirelli Tyre S.p.A.Inventors: Matteo Braga, Fiorenzo Brivio, Piero Losi
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Patent number: D798222Type: GrantFiled: January 27, 2016Date of Patent: September 26, 2017Assignee: Pirelli Tyre S.p.A.Inventors: Matteo Braga, Fiorenzo Brivio, Piero Losi
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Patent number: D918124Type: GrantFiled: July 31, 2017Date of Patent: May 4, 2021Assignee: PIRELLI TYRE S.p.A.Inventors: Matteo Braga, Fiorenzo Brivio, Piero Losi