Patents by Inventor Ali Berker
Ali Berker 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: 9324312Abstract: A sound barrier and method of sound insulation are disclosed. In one aspect of the disclosure, a sound barrier comprises a first, solid medium, such as a viscoelastic solid and a second medium, such as air. At least one of the two media forms a periodic array disposed in the other medium. The solid medium has a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave.Type: GrantFiled: December 15, 2008Date of Patent: April 26, 2016Assignees: 3M INNOVATIVE PROPERTIES COMPANY, THE ARIZONA BOARD OF REGENTS ON BEHALFF OF THE UNIVERSITY OF ARIZONAInventors: Ali Berker, Manish Jain, Mark D. Purgett, Sanat Mohanty, Pierre A. Deymier, Bassam Merheb
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Patent number: 8727071Abstract: A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a porous medium other than a porous metal, the porous medium having a porosity of at least about 0.02, and wherein the other of the first and second media is a viscoelastic or elastic medium.Type: GrantFiled: June 22, 2010Date of Patent: May 20, 2014Assignee: 3M Innovative Properties CompanyInventors: Ali Berker, Joon Chatterjee, Richard W. Greger, Marie Aloshyna ep Lesuffleur, Sanat Mohanty
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Patent number: 8607921Abstract: A hearing protection process comprises (a) providing at least one hearing protection device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the hearing protection device between an acoustic source and an acoustic receiver in the form of a human ear.Type: GrantFiled: December 16, 2009Date of Patent: December 17, 2013Assignee: 3M Innovative Properties CompanyInventors: Ali Berker, Sharon R Garber, Richard W. Greger, Marie Aloshyna ep Lesuffleur, Smarajit Mitra
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Patent number: 8276709Abstract: A sound insulation process comprises (a) providing at least one sound insulation device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the sound insulation device between an acoustic source area and an acoustic receiving area of a transportation vehicle.Type: GrantFiled: December 16, 2009Date of Patent: October 2, 2012Assignee: 3M Innovative Properties CompanyInventors: Ali Berker, Richard W. Greger, Marie Aloshyna ep Lesuffieur, Michael Patrick M. Mandanas, Sanat Mohanty, David A. Ylitalo, Patrick G. Zimmerman
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Publication number: 20120090916Abstract: A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a porous medium other than a porous metal, the porous medium having a porosity of at least about 0.02, and wherein the other of the first and second media is a viscoelastic or elastic medium.Type: ApplicationFiled: June 22, 2010Publication date: April 19, 2012Inventors: Ali Berker, Joon Chatterjee, Richard W. Greger, Marie Aloshyna ep Lesuffleur, Sanat Mohanty
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Patent number: 8132643Abstract: A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium.Type: GrantFiled: December 16, 2008Date of Patent: March 13, 2012Assignee: 3M Innovative Properties CompanyInventors: Ali Berker, Richard W. Greger, Manish Jain, Marie Alsohyna ep Lesuffleur, Sanat Mohanty
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Publication number: 20110253153Abstract: A hearing protection process comprises (a) providing at least one hearing protection device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the hearing protection device between an acoustic source and an acoustic receiver in the form of a human ear.Type: ApplicationFiled: December 16, 2009Publication date: October 20, 2011Inventors: Ali Berker, Sharon R. Garber, Richard W. Greger, Marie Aloshyna ep Lesuffleur, Smarajit Mitra
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Publication number: 20110247893Abstract: A sound insulation process comprises (a) providing at least one sound insulation device comprising at least one sound barrier comprising at least one substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium; and (b) interposing the sound insulation device between an acoustic source area and an acoustic receiving area of a transportation vehicle.Type: ApplicationFiled: December 16, 2009Publication date: October 13, 2011Inventors: Ali Berker, Richard W. Greger, Marie Aloshyna ep Lesuffieur, Michael Patrick M. Mandanas, Sanat Mohanty, David A. Yitalo, Patrick G. Zimmerman
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Publication number: 20110100746Abstract: A sound barrier and method of sound insulation are disclosed. In one aspect of the disclosure, a sound barrier comprises a first, solid medium, such as a viscoelastic solid and a second medium, such as air. At least one of the two media forms a periodic array disposed in the other medium. The solid medium has a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave.Type: ApplicationFiled: December 15, 2008Publication date: May 5, 2011Applicants: 3M Innovative Properties Company, The University of Arizona, The Arizona Board of Re gentsInventors: Ali Berker, Manish Jain, Mark D. Purgett, Sanat Mohanty, Pierre A. Deymier, Bassam Merheb
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Publication number: 20110005859Abstract: A sound insulation process comprises (a) providing at least one sound barrier comprising a substantially periodic array of structures disposed in a first medium having a first density, the array comprising at least one row of at least two of the structures, the structures being made of a second medium having a second density that is greater than the first density, the second medium being a viscoelastic medium, an elastic medium, or a combination thereof, and the first medium being a gaseous medium; and (b) placing the at least one sound barrier in at least one at least partially enclosed gas stream in a manner such that the row of structures extends in a direction that is perpendicular to the direction of flow of the gas stream.Type: ApplicationFiled: February 27, 2009Publication date: January 13, 2011Inventors: Ali Berker, Manish Jain, Smarajit Mitra, Sanat Mohanty
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Publication number: 20110000741Abstract: A sound insulation process comprises (a) providing at least one sound barrier comprising at least one composite resonator element; and (b) placing the at least one sound barrier in at least one gas stream that is at least partially enclosed.Type: ApplicationFiled: February 27, 2009Publication date: January 6, 2011Inventors: Ali Berker, Richard W. Greger, Manish Jain, Marie Aloshyna ep Lesuffleur, Smarajit Mitra, Sanat Mohanty
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Publication number: 20100288580Abstract: A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a viscoelastic medium having a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave, and wherein the other of the first and second media is a viscoelastic or elastic medium.Type: ApplicationFiled: December 16, 2008Publication date: November 18, 2010Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Ali Berker, Richard W. Greger, Marie Alsohyna Ep Lesuffleur, Sanat Mohanty