Patents by Inventor Nadav Shalem
Nadav Shalem 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: 11860557Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: GrantFiled: January 21, 2022Date of Patent: January 2, 2024Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Patent number: 11638927Abstract: There is disclosed a selective wetting apparatus comprising a roller rotatable about a roller axis and comprising a wettable roller surface; an applicator unit having a lip which extends parallel to the roller axis and is radially spaced apart from the roller surface by a gap, wherein the applicator unit is to convey liquid agent towards the roller so that the liquid agent forms a liquid bridge over the gap to wet a wetted axial portion of the roller surface; and a flow guide to direct a gas flow into a regulated axial portion of the gap to locally prevent formation of a liquid bridge, and thereby prevent wetting of a corresponding axial portion of the roller surface.Type: GrantFiled: September 15, 2017Date of Patent: May 2, 2023Assignee: HP Indigo B.V.Inventors: Alex Lipnizkiy, Mordechai Arenson, Marko Richter, Yossi Yaacobov, Gil Fisher, Michael Vinokur, Nadav Shalem, Chen Talmor
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Patent number: 11573507Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: GrantFiled: September 16, 2021Date of Patent: February 7, 2023Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Patent number: 11520248Abstract: Some examples relate to printing apparatuses and methods. In an example, a roller transfers printing fluid to a substrate. In some examples an electrically grounded roller is positioned proximate the electrically charged roller and guides the substrate. In some examples, the roller is an electrically charged roller. In some examples an electric field is applied and its strength is varied based on a dielectric coefficient of the substrate and/or a thickness of the substrate.Type: GrantFiled: December 12, 2018Date of Patent: December 6, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ehud Eyal, Eric Nelson, Nadav Shalem
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Patent number: 11407236Abstract: A method is disclosed. The method may comprise applying a coating of electrically charged fluid print agent to a developer surface, the fluid print agent comprising particles of thermoplastic resin in a carrier fluid. The method may further comprise controlling migration of fluid print agent from the developer surface to form an image from fluid print agent on a first surface. The method may further comprise irradiating the print agent on the first surface with ultraviolet radiation to heat the print agent to a temperature of at least 70° C. to melt the thermoplastic resin. A print system and a heating unit are also disclosed.Type: GrantFiled: March 22, 2019Date of Patent: August 9, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Ehud Eyal, Nadav Shalem
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Publication number: 20220146964Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Patent number: 11320766Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: GrantFiled: March 21, 2018Date of Patent: May 3, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Publication number: 20220024227Abstract: A method is disclosed. The method may comprise applying a coating of electrically charged fluid print agent to a developer surface, the fluid print agent comprising particles of thermoplastic resin in a carrier fluid. The method may further comprise controlling migration of fluid print agent from the developer surface to form an image from fluid print agent on a first surface. The method may further comprise irradiating the print agent on the first surface with ultraviolet radiation to heat the print agent to a temperature of at least 70° C. to melt the thermoplastic resin. A print system and a heating unit are also disclosed.Type: ApplicationFiled: March 22, 2019Publication date: January 27, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Ehud Eyal, Nadav Shalem
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Publication number: 20220004124Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: ApplicationFiled: September 16, 2021Publication date: January 6, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Publication number: 20220004115Abstract: Some examples relate to printing apparatuses and methods. In an example, a roller transfers printing fluid to a substrate. In some examples an electrically grounded roller is positioned proximate the electrically charged roller and guides the substrate. In some examples, the roller is an electrically charged roller. In some examples an electric field is applied and its strength is varied based on a dielectric coefficient of the substrate and/or a thickness of the substrate.Type: ApplicationFiled: December 12, 2018Publication date: January 6, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Ehud EYAL, Eric NELSON, Nadav SHALEM
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Patent number: 11163247Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: GrantFiled: July 31, 2018Date of Patent: November 2, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Publication number: 20210294245Abstract: In an example, a print apparatus comprises an intermediate transfer member to receive thermoplastic print agent from a photoconductive surface, a rotatably mounted endless cleaning surface to receive a layer of thermoplastic print agent from the intermediate transfer member and a heater, to heat the endless cleaning surface. The endless cleaning surface may be to engage with the intermediate transfer member when heated to transfer residue from the intermediate transfer member to the layer of thermoplastic print agent on the endless cleaning surface.Type: ApplicationFiled: March 21, 2018Publication date: September 23, 2021Inventors: Amir Kedem, Michael Kokotov, Elina Ploshnik, Guy Nesher, Alex Feygelman, Eran Shiran, Nadav Shalem, Chen Talmor
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Publication number: 20210232069Abstract: In an example of the disclosure, a blanket servicing system includes a rotatably mounted endless cleaning surface and a scraper. The endless cleaning surface is to have a first engagement with a blanket to obtain a layer of thermoplastic print agent from the blanket. The endless cleaning surface is to have a second engagement with the blanket to receive residue from the blanket onto the layer of thermoplastic print agent. The scraper is to scrape the endless cleaning surface to transfer the residue from the endless cleaning surface to a collection element.Type: ApplicationFiled: July 31, 2018Publication date: July 29, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Amir Kedem, Michael Kokotov, Alex Feygelman, Guy Nesher, Nadav Shalem, Michael Vinokur
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Publication number: 20200222935Abstract: There is disclosed a selective wetting apparatus (2) comprising a roller (20) rotatable about a roller axis (24) and comprising a wettable roller surface (22); an applicator unit (10) having a lip (12) which extends parallel to the roller axis (24) and is radially spaced apart from the roller surface (22) by a gap (30), wherein the applicator unit (10) is to convey liquid agent (14) towards the roller (20) so that the liquid agent (14) forms a liquid bridge (32) over the gap (30) to wet a wettable axial portion of the roller surface (22); and a flow guide (50) to direct a gas flow (56) into a regulated axial portion of the gap (30) to locally prevent formation of a liquid bridge (32), and thereby prevent wetting of a corresponding axial portion of the roller surface (22).Type: ApplicationFiled: September 15, 2017Publication date: July 16, 2020Inventors: Alex Lipnizkiy, Mordechai Arenson, Marko Richter, Yossi Yaacobov, Gil Fisher, Michael Vinokur, Chen Talmor, Nadav Shalem
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Patent number: 8989617Abstract: In one example, a climate control system for a printer includes: an air flow path from an intake for receiving warmer, dirtier aft from a printing area of the printer to an exhaust for returning cooler, cleaner air to the printing area of the printer; a first heat exchanger in the flow path for exchanging heat between warmer air coming from the intake and cooler air going to the exhaust; and a second heat exchanger in the flow path for receiving warmer, dirtier air from the first heat exchanger and passing cooler, cleaner air to the first heat exchanger. The second heat exchanger is configured to cool the air to a predetermined dew point temperature corresponding to a desired level of a contaminant in the air.Type: GrantFiled: May 24, 2011Date of Patent: March 24, 2015Assignee: Hewlett-Packard Indigo B.V.Inventors: Nadav Shalem, Moshe Peles, Michael Melnik
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Publication number: 20140029970Abstract: In one example, a climate control system for a printer includes: an air flow path from an intake for receiving warmer, dirtier aft from a printing area of the printer to an exhaust for returning cooler, cleaner air to the printing area of the printer; a first heat exchanger in the flow path for exchanging heat between warmer air coming from the intake and cooler air going to the exhaust; and a second heat exchanger in the flow path for receiving warmer, dirtier air from the first heat exchanger and passing cooler, cleaner air to the first heat exchanger. The second heat exchanger is configured to cool the air to a predetermined dew point temperature corresponding to a desired level of a contaminant in the air.Type: ApplicationFiled: May 24, 2011Publication date: January 30, 2014Inventors: Nadav Shalem, Moshe Peles, Michael Melnik