Patents by Inventor Eduardo Napadensky
Eduardo Napadensky 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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Publication number: 20190270253Abstract: A system and methods for solid freeform fabrication of an object is disclosed. The system comprises a solid freeform fabrication apparatus having a plurality of dispensing heads, a building material supply apparatus configured to supply a plurality of building materials to the fabrication apparatus, and a control unit configured for controlling the fabrication apparatus and the supply apparatus based on an operation mode selected from a plurality of predetermined operation modes.Type: ApplicationFiled: March 5, 2018Publication date: September 5, 2019Applicant: Stratasys Ltd.Inventors: Moshe LEVI, Guy Menchik, Eduardo Napadensky
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Patent number: 10335994Abstract: A method of printing a three-dimensional object is provided. The method includes selectively dispensing, layer by layer, one or more materials to form the three-dimensional object; selectively dispensing, layer by layer, one or more materials to form a support construction for the three-dimensional object; selectively dispensing, layer by layer, one or more materials to form a rigid exterior construction around at least part of the support construction, the rigid exterior having substantially similar strength and elasticity to the three-dimensional object; and forming a release construction around the rigid exterior construction, the release construction being between the rigid exterior construction and the three-dimensional object.Type: GrantFiled: August 24, 2017Date of Patent: July 2, 2019Assignee: STRATASYS LTDInventors: Eduardo Napadensky, Eliahu M. Kritchman
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Publication number: 20190047185Abstract: A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture.Type: ApplicationFiled: October 9, 2018Publication date: February 14, 2019Applicant: STRATASYS LTD.Inventors: Eliahu M. KRITCHMAN, Hanan GOTHAIT, Eduardo NAPADENSKY
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Patent number: 10113064Abstract: A material composition, which may be a support material, for three-dimensional (3D) inkjet printing is disclosed. The material composition may comprise a glycol polymer, a low molecular weight polar substance and a surface-active agent. The glycol polymer may be polyethylene glycol (PEG) having a molecular weight between about 1000 and about 6000 and the low molecular weight polar substance may be dimethyl hexanediol.Type: GrantFiled: January 13, 2017Date of Patent: October 30, 2018Assignee: STRATASYS LTD.Inventors: Shai Hirsch, Avraham Levy, Eduardo Napadensky
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Publication number: 20180297287Abstract: Some embodiments of the invention may be related to a system and method of printing a three-dimensional (3D) object and a support construction for the 3D object. The system may include a printing unit and a supply system for supplying a body material and a support material to the printing unit. The system may further include a controller be configured to: generate 3D cross sectional digital data comprising a set of horizontal slices, to manipulate the 3D digital data to create a set of shifted slices by performing vertical shifts between body regions and support regions of a same horizontal slice to create printing digital data and to control the printing unit to deposit, in layers, the body material and the support material based on the printing digital data, wherein in a single scan, droplets of the support material and droplets of the body material travel different distances.Type: ApplicationFiled: June 7, 2016Publication date: October 18, 2018Applicant: Stratasys Ltd.Inventors: Daniel DIKOVSKY, Eduardo NAPADENSKY, Shai HIRSCH, Evgeni LEVIN, Yoav BRESSLER
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Patent number: 10099406Abstract: A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture.Type: GrantFiled: May 28, 2017Date of Patent: October 16, 2018Assignee: STRATASYS LTDInventors: Dani Chechik, Avraham Teken, Eliahu M. Kritchman, Eduardo Napadensky
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Patent number: 10099430Abstract: A three dimensional printing method for producing a self-destructible temporary structure, comprising: depositing, layer by layer, a degradable material solution having a biosynthetic copolymer as a degradable component and a disintegrating agent solution comprising enzyme as the disintegrating agent, wherein the disintegrating agent is capable of disintegrating the degradable component. The steps include curing deposited layers to form gel layers and activating the disintegrating agent by an external trigger during or after depositing the disintegrating agent to gradually degrade the degradable component.Type: GrantFiled: December 26, 2016Date of Patent: October 16, 2018Assignee: STRATASYS LTDInventors: Daniel Dikovsky, Eduardo Napadensky
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Publication number: 20180272595Abstract: An inkjet printing method and inkjet compositions are disclosed. The method includes selectively depositing by inkjet printing, layer by layer, a first composition and a second composition onto a receiving media from different dispensers to form polymerizable deposited layers. The first composition includes one or more free-radical polymerizable compounds and a cationic photoinitiator and is devoid of compounds able to undergo cationic photopolymerization within the first composition. The second composition includes one or more cationic polymerizable compounds and is devoid of cationic photoinitiators. At least one of the compositions includes a radical photoinitiator. The method further includes exposing the deposited layers to actinic radiation to initiate polymerization of the free-radical polymerizable compounds and the cationic polymerizable compounds within the deposited layers.Type: ApplicationFiled: May 27, 2018Publication date: September 27, 2018Applicant: STRATASYS LTD.Inventors: Ira YUDOVIN-FARBER, Eduardo Napadensky, Avi Levy, Daniel Dikovsky
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Publication number: 20180264734Abstract: A method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers each patterned according to the shape of a cross section of the object. In some embodiments, the formation of at least one of the layers comprises performing a raster scan to dispense at least a first building material composition, and a vector scan to dispense at least a second building material composition. The vector scan is optionally along a path selected to form at least one structure selected from the group consisting of (i) an elongated structure, (ii) a boundary structure at least partially surrounding an area filled with the first building material, and (iii) an inter-layer connecting structure.Type: ApplicationFiled: May 22, 2018Publication date: September 20, 2018Applicant: Stratasys Ltd.Inventor: Eduardo NAPADENSKY
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Patent number: 10016937Abstract: A method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers each patterned according to the shape of a cross section of the object. In some embodiments, the formation of at least one of the layers comprises performing a raster scan to dispense at least a first building material composition, and a vector scan to dispense at least a second building material composition. The vector scan is optionally along a path selected to form at least one structure selected from the group consisting of (i) an elongated structure, (ii) a boundary structure at least partially surrounding an area filled with the first building material, and (iii) an inter-layer connecting structure.Type: GrantFiled: April 24, 2017Date of Patent: July 10, 2018Assignee: Stratasys Ltd.Inventor: Eduardo Napadensky
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Patent number: 10005236Abstract: An inkjet printing method and inkjet compositions are disclosed. The method includes selectively depositing by inkjet printing, layer by layer, a first composition and a second composition onto a receiving media from different dispensers to form polymerizable deposited layers. The first composition includes one or more free-radical polymerizable compounds and a cationic photoinitiator and is devoid of compounds able to undergo cationic photopolymerization within the first composition. The second composition includes one or more cationic polymerizable compounds and is devoid of cationic photoinitiators. At least one of the compositions includes a radical photoinitiator. The method further includes exposing the deposited layers to actinic radiation to initiate polymerization of the free-radical polymerizable compounds and the cationic polymerizable compounds within the deposited layers.Type: GrantFiled: February 28, 2013Date of Patent: June 26, 2018Assignee: STRATASYS LTD.Inventors: Ira Yudovin-Farber, Eduardo Napadensky, Avi Levy, Daniel Dikovsky
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Patent number: 9919474Abstract: A system and methods for solid freeform fabrication of an object is disclosed. The system comprises a solid freeform fabrication apparatus having a plurality of dispensing heads, a building material supply apparatus configured to supply a plurality of building materials to the fabrication apparatus, and a control unit configured for controlling the fabrication apparatus and the supply apparatus based on an operation mode selected from a plurality of predetermined operation modes.Type: GrantFiled: April 7, 2015Date of Patent: March 20, 2018Assignee: Stratasys Ltd.Inventor: Eduardo Napadensky
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Publication number: 20170368738Abstract: A method of printing a three-dimensional object is provided. The method includes selectively dispensing, layer by layer, one or more materials to form the three-dimensional object; selectively dispensing, layer by layer, one or more materials to form a support construction for the three-dimensional object; selectively dispensing, layer by layer, one or more materials to form a rigid exterior construction around at least part of the support construction, the rigid exterior having substantially similar strength and elasticity to the three-dimensional object; and forming a release construction around the rigid exterior construction, the release construction being between the rigid exterior construction and the three-dimensional object.Type: ApplicationFiled: August 24, 2017Publication date: December 28, 2017Applicant: STRATASYS LTD.Inventors: Eduardo NAPADENSKY, Iliahu M. KRITCHMAN
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Publication number: 20170282452Abstract: A method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object. Each layer is formed by dispensing at least one modeling material to form an uncured layer, and curing the uncured layer by radiation. In various exemplary embodiments of the invention the method comprises, for at least one layer, forming a stack of sacrificial radiation-protective layers to cover an exposed portion of the layer, such that an upper layer of the stack remains exposed during formation of any subsequent layer of the plurality of layers.Type: ApplicationFiled: June 19, 2017Publication date: October 5, 2017Applicant: Stratasys Ltd.Inventors: Diana RAVICH, Eduardo NAPADENSKY
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Publication number: 20170259469Abstract: A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture.Type: ApplicationFiled: May 28, 2017Publication date: September 14, 2017Inventors: Dani CHECHIK, Avraham Teken, Eliahu M. Kritchman, Eduardo Napadensky
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Publication number: 20170259488Abstract: A method suitable for solid freeform fabrication is disclosed. The method comprises mixing respective amounts of a plurality of materials such as to provide a building material characterized by at least one attribute, and using the building material for fabricating a three-dimensional object.Type: ApplicationFiled: May 29, 2017Publication date: September 14, 2017Applicant: Stratasys Ltd.Inventor: Eduardo NAPADENSKY
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Patent number: 9744720Abstract: A method for the preparation of a composite material having a pre-designed structure and properties according to the intended use of said composite material is provided. The method includes generating data for dispensing two or more different interface materials having different properties into at least two different phases; selectively depositing said two or more different interface materials having different properties from two or more corresponding dispensers to form layers according to the data generated, each interface material being dispensed from a different dispenser to form at least two different phases of interface materials; and curing or solidifying the dispensed layers to obtain a composite material with pre-designed structure and properties.Type: GrantFiled: January 13, 2015Date of Patent: August 29, 2017Assignee: STRATASYS LTD.Inventor: Eduardo Napadensky
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Publication number: 20170225390Abstract: A method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers each patterned according to the shape of a cross section of the object. In some embodiments, the formation of at least one of the layers comprises performing a raster scan to dispense at least a first building material composition, and a vector scan to dispense at least a second building material composition. The vector scan is optionally along a path selected to form at least one structure selected from the group consisting of (i) an elongated structure, (ii) a boundary structure at least partially surrounding an area filled with the first building material, and (iii) an inter-layer connecting structure.Type: ApplicationFiled: April 24, 2017Publication date: August 10, 2017Applicant: Stratasys Ltd.Inventor: Eduardo NAPADENSKY
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Patent number: 9724879Abstract: Apparatus for producing an object by sequentially forming thin layers of a construction material one on top of the other responsive to data defining the object, the apparatus comprising: a plurality of printing heads each having a surface formed with a plurality of output orifices and controllable to dispense the construction material through each orifice independently of the other orifices; a shuttle to which the printing heads are mounted; a support surface; and a controller adapted to control the shuttle to move back and forth over the support surface and as the shuttle moves to control the printing heads to dispense the construction material through each of their respective orifices responsive to the data to form a first layer on the support surface and thereafter, sequentially the other layers; wherein each printing head is dismountable from the shuttle and replaceable independently of the other printing heads.Type: GrantFiled: December 29, 2016Date of Patent: August 8, 2017Assignee: Stratasys Ltd.Inventors: Eliahu M. Kritchman, Eduardo Napadensky, Moshe Levi
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Patent number: 9688021Abstract: A method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object. Each layer is formed by dispensing at least one modeling material to form an uncured layer, and curing the uncured layer by radiation. In various exemplary embodiments of the invention the method comprises, for at least one layer, forming a stack of sacrificial radiation-protective layers to cover an exposed portion of the layer, such that an upper layer of the stack remains exposed during formation of any subsequent layer of the plurality of layers.Type: GrantFiled: November 28, 2011Date of Patent: June 27, 2017Assignee: Stratasys Ltd.Inventors: Diana Ravich, Eduardo Napadensky