Patents by Inventor Daniele Foresti
Daniele Foresti 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: 11897263Abstract: A subwavelength resonator for acoustophoretic printing comprises a hollow resonator body for local enhancement of an acoustic field integrated with a nozzle body for delivery of an ink into the acoustic field. The nozzle body has a first end outside the hollow resonator body and a second end inside the hollow resonator body, and includes a fluid channel extending between a fluid inlet at the first end and a fluid outlet at the second end. The fluid channel passes through a side wall of the hollow resonator body and includes at least one bend. During acoustophoretic printing, an ink delivered through the fluid channel of the nozzle body and out of the fluid outlet is exposed to a high-intensity acoustic field.Type: GrantFiled: March 23, 2020Date of Patent: February 13, 2024Assignee: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Daniele Foresti, Aleksandra Markovic, Jennifer A. Lewis
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Patent number: 11498332Abstract: A method of acoustophoretic printing comprises generating an acoustic field at a first end of an acoustic chamber fully or partially enclosed by sound-reflecting walls. The acoustic field interacts with the sound-reflecting walls and travels through the acoustic chamber. The acoustic field is enhanced in a chamber outlet at a second end of the acoustic chamber. An ink is delivered into a nozzle positioned within the acoustic chamber. The nozzle has a nozzle opening projecting into the chamber outlet. The ink travels through the nozzle and is exposed to the enhanced acoustic field at the nozzle opening, and a predetermined volume of the ink is ejected from the nozzle opening and out of the acoustic chamber.Type: GrantFiled: July 24, 2017Date of Patent: November 15, 2022Assignee: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Daniele Foresti, Jennifer A. Lewis, Armand Kurum
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Publication number: 20220176694Abstract: A subwavelength resonator for acoustophoretic printing comprises a hollow resonator body for local enhancement of an acoustic field integrated with a nozzle body for delivery of an ink into the acoustic field. The nozzle body has a first end outside the hollow resonator body and a second end inside the hollow resonator body, and includes a fluid channel extending between a fluid inlet at the first end and a fluid outlet at the second end. The fluid channel passes through a side wall of the hollow resonator body and includes at least one bend. During acoustophoretic printing, an ink delivered through the fluid channel of the nozzle body and out of the fluid outlet is exposed to a high-intensity acoustic field.Type: ApplicationFiled: March 23, 2020Publication date: June 9, 2022Applicant: President and Fellows of Harvard CollegeInventors: Daniele FORESTI, Aleksandra MARKOVIC, Jennifer A. LEWIS
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Publication number: 20210154998Abstract: A method of acoustophoretic printing comprises generating an acoustic field at a first end of an acoustic chamber fully or partially enclosed by sound-reflecting walls. The acoustic field interacts with the sound-reflecting walls and travels through the acoustic chamber. The acoustic field is enhanced in a chamber outlet at a second end of the acoustic chamber. An ink is delivered into a nozzle positioned within the acoustic chamber. The nozzle has a nozzle opening projecting into the chamber outlet. The ink travels through the nozzle and is exposed to the enhanced acoustic field at the nozzle opening, and a predetermined volume of the ink is ejected from the nozzle opening and out of the acoustic chamber.Type: ApplicationFiled: January 6, 2021Publication date: May 27, 2021Applicant: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Jennifer A. Lewis, Armand Kurum
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Patent number: 10556428Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e., pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: GrantFiled: February 5, 2019Date of Patent: February 11, 2020Assignee: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari
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Publication number: 20190240976Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e., pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: ApplicationFiled: February 5, 2019Publication date: August 8, 2019Applicant: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari
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Publication number: 20190160813Abstract: A method of acoustophoretic printing comprises generating an acoustic field at a first end of an acoustic chamber fully or partially enclosed by sound-reflecting walls. The acoustic field interacts with the sound-reflecting walls and travels through the acoustic chamber. The acoustic field is enhanced in a chamber outlet at a second end of the acoustic chamber. An ink is delivered into a nozzle positioned within the acoustic chamber. The nozzle has a nozzle opening projecting into the chamber outlet. The ink travels through the nozzle and is exposed to the enhanced acoustic field at the nozzle opening, and a predetermined volume of the ink is ejected from the nozzle opening and out of the acoustic chamber.Type: ApplicationFiled: July 24, 2017Publication date: May 30, 2019Applicant: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Jennifer A. Lewis, Armand Kurum
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Patent number: 10214013Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e., pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: GrantFiled: December 14, 2017Date of Patent: February 26, 2019Assignee: PRESIDENT AND FELLOWS OF HARVARD COLLEGEInventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari
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Publication number: 20180117909Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e., pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: ApplicationFiled: December 14, 2017Publication date: May 3, 2018Applicant: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari
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Patent number: 9878536Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e. pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: GrantFiled: January 23, 2015Date of Patent: January 30, 2018Assignee: President and Fellows of Harvard CollegeInventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari
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Publication number: 20170001439Abstract: The present invention contains a printing apparatus and a method, e.g., for ejecting inks (i.e. pure liquids, mixtures, colloids, etc.) for a very broad range of physical properties (such as viscosity). Acoustic forces 3a may be generated by an emitter 1 and a reflector 2 to detach droplets 10 from a nozzle 6. The ink may be advanced through the nozzle 6 by a standard back pressure system 5. A reflectorless chamber 7 may enhance acoustic forces 8a and the droplets 10 may be ejected at a bottom 9 of said chamber 7, so that droplets 10 may be deposited on any substrate 11.Type: ApplicationFiled: January 23, 2015Publication date: January 5, 2017Inventors: Daniele Foresti, Dimos Poulikakos, Manish Kumar Tiwari