Patents by Inventor David Eshed
David Eshed 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: 10786983Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.Type: GrantFiled: April 27, 2017Date of Patent: September 29, 2020Assignee: Stratasys Ltd.Inventors: Eliahu M. Kritchman, David Eshed, Guy Menchik
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Publication number: 20170225391Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.Type: ApplicationFiled: April 27, 2017Publication date: August 10, 2017Applicant: Stratasys Ltd.Inventors: Eliahu M. KRITCHMAN, David ESHED, Guy MENCHIK
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Patent number: 9662838Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.Type: GrantFiled: August 25, 2015Date of Patent: May 30, 2017Assignee: Stratasys Ltd.Inventors: Eliahu M. Kritchman, David Eshed, Guy Menchik
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Publication number: 20150360417Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.Type: ApplicationFiled: August 25, 2015Publication date: December 17, 2015Applicant: Stratasys Ltd.Inventors: Eliahu M. KRITCHMAN, David ESHED, Guy MENCHIK
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Patent number: 9132587Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.Type: GrantFiled: April 10, 2008Date of Patent: September 15, 2015Assignee: Stratasys Ltd.Inventors: David Eshed, Eliahu M. Kritchman, Guy Menchik
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Patent number: 8663568Abstract: An apparatus for disposal of photocurable fluid waste may include a conduit for conducting photocurable fluid waste from a source of photocurable fluid waste; a dispenser for automatically dispensing a receptacle made of material that is impermeable to the photocurable fluid waste and that transmits radiation capable of curing; a welder or other sealing device for welding the receptacle to form a bag with a portion of the photocurable fluid waste inside; and a source of radiation for curing the photocurable fluid waste in the bag.Type: GrantFiled: July 9, 2012Date of Patent: March 4, 2014Assignee: Stratasys Ltd.Inventors: Meir Bar Nathan, David Eshed
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Publication number: 20120272617Abstract: An apparatus for disposal of photocurable fluid waste may include a conduit for conducting photocurable fluid waste from a source of photocurable fluid waste; a dispenser for automatically dispensing a receptacle made of material that is impermeable to the photocurable fluid waste and that transmits radiation capable of curing; a welder or other sealing device for welding the receptacle to form a bag with a portion of the photocurable fluid waste inside; and a source of radiation for curing the photocurable fluid waste in the bag.Type: ApplicationFiled: July 9, 2012Publication date: November 1, 2012Inventors: Meir BAR NATHAN, David ESHED
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Patent number: 8232444Abstract: An apparatus and method for disposal of photocurable fluid waste may include a conduit for conducting photocurable fluid waste from a source of photocurable fluid waste; a dispenser for automatically dispensing a receptacle made of material that is impermeable to the photocurable fluid waste and that transmits radiation capable of curing; a welder or other sealing device for welding the receptacle to form a bag with a portion of the photocurable fluid waste inside; and a source of radiation for curing the photocurable fluid waste in the bag.Type: GrantFiled: March 26, 2009Date of Patent: July 31, 2012Assignee: Objet Ltd.Inventors: Meir Bar Nathan, David Eshed
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Publication number: 20110147993Abstract: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.Type: ApplicationFiled: April 10, 2008Publication date: June 23, 2011Applicant: Objet Geometries Ltd.Inventors: David Eshed, Eliahu M. Kritchman, Guy Menchik
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Publication number: 20100249486Abstract: An apparatus and method for disposal of photocurable fluid waste may include a conduit for conducting photocurable fluid waste from a source of photocurable fluid waste; a dispenser for automatically dispensing a receptacle made of material that is impermeable to the photocurable fluid waste and that transmits radiation capable of curing; a welder or other sealing device for welding the receptacle to form a bag with a portion of the photocurable fluid waste inside; and a source of radiation for curing the photocurable fluid waste in the bag.Type: ApplicationFiled: March 26, 2009Publication date: September 30, 2010Inventors: Meir Bar Nathan, David Eshed
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Publication number: 20090210084Abstract: 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: ApplicationFiled: July 23, 2008Publication date: August 20, 2009Applicant: Objet Geometries Ltd.Inventors: David Eshed, Moshe Levi, Eliahu M. Kritchman, Hanan Gothait, Igal Zeytoun, Dror Danai
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Patent number: 7500846Abstract: 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: May 2, 2004Date of Patent: March 10, 2009Assignee: Objet Geometries Ltd.Inventors: David Eshed, Moshe Levi, Eliahu M. Kritchman, Hanan Gothait, Igal Zeytoun, Dror Danai
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Publication number: 20070179656Abstract: 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: ApplicationFiled: May 2, 2004Publication date: August 2, 2007Inventors: David Eshed, Moshe Levi, Eliahu Kritchman, Hanan Gothait, Igal Zeytoun, Dror Danai
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Patent number: 6371026Abstract: Disclosed are apparatus and methods for protecting an optical system from residual material that is scattered and dispersed during the imaging of printing plates and collecting same. The apparatus includes a housing with upper and lower chambers and surrounding at least a portion of the printing drum. The lower chamber is configured to be fitted to the optical system of the imager. A compressed air supply connects to the lower chamber and a suction device connects to the upper chamber for extracting the residual material. Air from the compressed air supply is moved through the lower chamber forming two air-streams, which are drawn into the upper chamber with the residual material of the imaging process.Type: GrantFiled: December 27, 1999Date of Patent: April 16, 2002Assignee: CreoScitex Corporation, Ltd.Inventors: Roni Ben-Zion, David Eshed, Yehuda Barnes Solomon
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Patent number: 6115056Abstract: Apparatus for adjusting the focus of an imaging apparatus is disclosed. The imaging apparatus includes a lens assembly which is attached to focus adjustment apparatus. The focus adjustment apparatus includes a pair of parallel flat springs attached at one end to a member supporting the lens assembly and an adjusting mechanism operative to cause the attached lens assembly to be moved so that the lens assembly moves in small increments while remaining perpendicular to the image being scanned.Type: GrantFiled: April 6, 1998Date of Patent: September 5, 2000Assignee: CreoScitex Corporation Ltd.Inventor: David Eshed