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Stratasys Ltd patents


Recent patent applications related to Stratasys Ltd. Stratasys Ltd is listed as an Agent/Assignee. Note: Stratasys Ltd may have other listings under different names/spellings. We're not affiliated with Stratasys Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Stratasys Ltd-related inventors


Polymer based molds and methods of manufacturing there of

Polymer-based molds are described. The polymer-based mold includes a first portion comprising a first material having a glass transition temperature (tg) lower than about 80° c.; and a second portion comprising a second material having a tg higher than about 80° c., wherein the second portion at least partially covers the first portion, the second portion is thinner than the first portion and faces a cavity in the polymeric mold.. ... Stratasys Ltd

Digitally-controlled three-dimensional printing of polymerizable materials

Provided are methods of fabricating an object, effected by jetting two or more different compositions, each containing a different material or mixture of materials, which, when contacted on a receiving medium, undergo a chemical reaction therebetween to form the building material. The chemical composition of the formed building material is dictated by a ratio of the number of voxels of each composition in a voxel block. ... Stratasys Ltd

Compositions and methods for use in three dimensional model printing

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.. ... Stratasys Ltd

System and method for printing a three-dimensional object

A three-dimensional printing system to print three-dimensional objects and a method of printed are disclosed. The system includes a printing apparatus to print three-dimensional objects and a controller to receive data from a material supply source and to control said printing apparatus.. ... Stratasys Ltd

System and method for depositing liquids

A printing head for a printing system is disclosed. The printing head comprises a plurality of compartments, each having an outlet port for depositing liquid and an inlet port separately connectable to a separate liquid container. ... Stratasys Ltd

Rapid prototyping apparatus

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.. . ... Stratasys Ltd

Method and system for building painted three-dimensional objects

Methods of printing a three-dimensional object, layer by layer are provided. Layers are formed by printing a bulk region with a white building material; inkjet printing a circumferential region surrounding the bulk region that is part of an apparent colored surface of the three-dimensional object, the circumferential region includes colored voxels formed by depositing a transparent building material and one or more color additive materials and inkjet printing a transparent layer around the circumferential region.. ... Stratasys Ltd

Method and system for reuse of materials in additive manufacturing systems

A printing system for forming three-dimensional objects, layer by layer is provided. The system includes inkjet printing heads, each printing head adapted to dispense one of a modeling material, a support material or a reusable waste material that comprises one or more materials that were previously discharged from at least one of the inkjet printing heads; a modeling material container; a support material container; a reusable waste material container and a leveling unit that removes surplus material from previously deposited layers, the surplus material being provided to the reusable waste container via a tube.. ... Stratasys Ltd

Three-dimensional inkjet printing using ring-opening metathesis polymerization

Methods for fabricating three-dimensional objects by 3d-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (romp) for fabricating the object. ... Stratasys Ltd

System and method for additive manufacturing of an object

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. ... Stratasys Ltd

Apparatus and method for pressure regulation

A system for maintaining a desired pressure difference between a first pressure within a chamber and a reference pressure at a reference space. The system may include a peristaltic pump located along a duct that connects the chamber with the reference space. ... Stratasys Ltd

Preparation of building material for solid freeform fabrication

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.. ... Stratasys Ltd

Method for printing of three-dimensional objects

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. ... Stratasys Ltd

Rapid production apparatus with production orientation determination

A method of producing an object by sequentially printing layers of construction material one on top of the other, the method comprising: providing the construction material at a first lower temperature; flowing the construction material through a heated flow path in a flow structure to heat the construction material and delivering the heated construction material to a heated reservoir in a printing head; and dispensing the heated construction material from the reservoir to build the object layer by layer.. . ... Stratasys Ltd

08/10/17 / #20170225391

System and method for three dimensional model printing

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.. . ... Stratasys Ltd

08/10/17 / #20170225390

System and method for additive manufacturing of an object

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. ... Stratasys Ltd

07/20/17 / #20170203508

Method and system for fabricating cross-layer pattern

A method of fabricating a cross-layer pattern in a layered object is disclosed. The method is executed by an additive manufacturing system and comprises: dispensing a patterning material onto a receiving medium to form a first pattern element; dispensing a first layer of modeling material onto the first pattern element while forming a first open cavity exposing at least a portion of the first pattern element beneath the first layer; and dispensing patterning material onto the exposed portion of the first pattern element and the first layer to form a second pattern element contacting the first pattern element.. ... Stratasys Ltd

06/22/17 / #20170173886

Method and system for rotational 3d printing

A system for three-dimensional printing is disclosed. The system comprises: a rotary tray configured to rotate about a vertical axis; a printing head, each having a plurality of separated nozzles; and a controller configured for controlling the inkjet printing head to dispense, during the rotation, droplets of building material in layers, such as to print a three-dimensional object on the tray.. ... Stratasys Ltd

06/22/17 / #20170173865

Composition and method for additive manufacturing of an object

Formulations and methods employing these formulation for fabricating an object by additive manufacturing, such as three-dimensional inkjet printing are provided. The formulations comprise at least 50 weight percents of hydrophilic curable materials, and upon curing, provide a material that is characterized by water absorbance of at least 5%, and by high hdt and impact resistance values. ... Stratasys Ltd

06/22/17 / #20170173696

Method and apparatus for 3d printing by selective sintering

A system (100) for building a three dimensional object includes a powder delivery station (10) for applying a layer of powder material on a building tray (200), a digital printing station (30) for printing a mask pattern on the layer, a sintering station (50) for selectively sintering the portion of the layer that is defined by the mask to be sintered and a stage (250) for repeatedly advancing the building tray (200) to each of the powder delivery station, digital printing station and sintering station to build a plurality of layers that together form the three dimensional object. The mask pattern defines a negative portion of the layer to be sintered. ... Stratasys Ltd

06/08/17 / #20170157848

System and method for three-dimensional printing

A method for preparing a three-dimensional object, in layers is described. The method may include forming a layer on a transparent substrate by selectively depositing liquid material on a transparent substrate based on image data of a cross section of the layer, the image data including at least a body region, wherein the material extends on the transparent tray outside a contour defining the body region; contacting the layer to a previously solidified layer attached to an elevated fabrication platform; and selectively curing the liquid material by irradiating the layer with curing radiation through the transparent substrate according to high-resolution image data of the cross section such that the material that extends outside the contour remains uncured.. ... Stratasys Ltd

05/11/17 / #20170130048

Water soluble ink-jet composition for 3d printing

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. ... Stratasys Ltd

04/20/17 / #20170106604

Three-dimensional printing process for producing a self-destructible temporary structure

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.. ... Stratasys Ltd

04/20/17 / #20170106602

Rapid prototyping apparatus

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.. . ... Stratasys Ltd








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