Hewlett-packard Development Company, L.P.

Hewlett-packard Company

Isaac Farr

Terry M Lambright

Christopher O Oriakhi

Shane Shivji

Vladek P Kasperchik

Jeffrey Allen Nielsen

David Ridgway Otis, Jr

Edward Zhihua Cai

Sukanya Rengaswamy

Casey Timon Miller

David A Neel

Gerald F Meehan

David C Collins

Kevin Francis Peters

Christie Dudenhoefer

Kenneth Ward

Daniel A Kearl

Erick Blane Kinas

Ravi Prasad

Ray Allen Walker

Steven N Miller

Shawn D Hunter

Joseph W Dody

Jürgen Engelbrecht

David Leigh

David Otis

Steve H Zhang

Nk Peter Samuel

Ade Akinmade

Jenny Li

Wayne E Gisel

Christopher Oriakhi

A liquid handling device that determines a position of a tray utilizing light reflected from structural features of the tray.

Liquid handling device

Inkjet print head dies are directly seated upon an exterior of a tubular member so as to face different directions.

Tube mounted inkjet printhead die

A method for creating a three-dimensional solid freeform fabrication object includes spreading a reactive powder on a substrate, selectively dispensing a core binder in the reactive powder to form a core material, and selectively dispensing a shell binder in the reactive powder to form a shell on the core material.

Core-shell solid freeform fabrication system

Embodiments of a metal oxide intercalated ink-jettable compound are disclosed.

Intercalated compound

A solution is provided that includes a non-aqueous organic solvent within which a solute has been dissolved. A thermal-fluid ejection mechanism is provided that has fluid-ejection nozzles and that is capable of thermally ejecting the solution. A device medium is provided that has a three-dimensional surface on which the solution is to be ejected. The fluid-ejection nozzles of the thermal fluid-ejection mechanism are controlled to eject the solution onto the three-dimensional surface of the device medium in accordance with a desired pattern.

Thermal ejection of solution having solute onto device medium

A closed loop system for separating materials of differing melting points includes an ultrasonic bath including a solution configured to supply thermal energy and cavitation to the materials of differing melting points, a solution reservoir configured to adjust levels of the solution in the ultrasonic bath, and a filter configured to remove particles of one of the materials of differing melting points from the solution.

Closed-loop system and a method for separating materials of differing melting points

Core-shell solid freeform fabrication

Various apparatus and methods relating to determining a quantity measurement of fluid ejected by drop-on-demand nozzles and modifying the ejection parameters based upon the quantity measurement.

Sensing of fluid ejected by drop-on-demand nozzles

An ink composition includes an at least partially intercalated metal oxide colorant and an ink vehicle.

Ink composition and method for forming the same

A method for solid free-form fabrication of a three-dimensional object includes depositing a particulate blend in a defined region, the particulate blend including radical source particulates, polyacid particulates, multivalent cation particulates, and a calcium phosphate source particulates, ink-jetting a liquid phase binder onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area, wherein the liquid phase binder is acidic and includes reactive monomers, and hardening the hydrated cement.

Resin-modified inorganic phosphate cement for solid freeform fabrication

Compositions, methods of using the compositions, and solid freeform fabrication (SFF) systems for producing three-dimensional objects are disclosed. One exemplary composition, among others, includes a basic component, an acidic component, at least one monoacrylate component, a light sensitive initiator, and a polar binder. A polymerization reaction between the at least one monoacrylate component and the light sensitive initiator occurs upon exposure to optical energy. The polar binder includes a viscosity modifier and a surface tension modifier. The polar binder is capable of stimulating a crosslinking reaction between the basic component and the acidic component.

Solid freeform compositions, methods of application thereof, and systems for use thereof

A method for solid free-form fabrication of a three-dimensional object includes depositing a particulate blend in a defined region, the particulate blend including reactive glass ionomer particulates, cross-linkable polyacid particulates including polyvinyl pyrrolidone-co-polyacrylic acid, and nanocomposites, ink-jetting an aqueous phase binder onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area, and hardening the hydrated cement.

Hybrid organic-inorganic composition for solid freeform fabrication

The present invention is drawn toward compositions, methods, and systems for solid free-form fabrication of three-dimensional objects. In one embodiment, a system for solid free-form fabrication of three-dimensional objects can comprise a particulate composition, a substrate configured for supporting at least a layer of the particulate composition in a defined region, and a liquid phase binder configured for being jetted in the defined region to polymerize at least a portion of the particulate composition to form a polymeric cement. Using this system in a layer by layer deposition process, three-dimensional objects can be formed. The particulate composition can include from 70 wt % to 99.9 wt % of polymeric particulates, and from 0.1 wt % to 10 wt % of a polymerization initiator. The liquid phase binder can include from 70 wt % to 90 wt % of polymerizable monomers and from 0.1 wt % to 10 wt % of a polymerization accelerator.

Solid free-form fabrication of three-dimensional objects

A method for solid free-form fabrication of a three-dimensional object includes depositing a particulate blend in a defined region, the particulate blend including a calcium phosphate source, a reaction retardant, and a layered double hydroxide, and selectively ink-jetting a solubilizing binder onto a predetermined volume of the particulate blend to form a pre-ceramic object in the predetermined volume, wherein the solubilizing binder includes wetting agents, humectants, pH modifiers, and surfactants.

System and method for fabricating three-dimensional objects using solid free-form fabrication

Chemical compositions are disclosed. One exemplary composition, among others, includes: a basic component, an acidic component, at least one acrylate component, oxidizing agent, reducing agent, and a binder. The binder includes a viscosity modifier and a surface tension modifier. The binder is capable of stimulating a reaction between the basic component and the acidic component. A portion of the binder is capable of undergoing a polymerization reaction between at least one acrylate component, the oxidizing agent, and the reducing agent. The polymerization reaction being initiated by the redox reaction between the oxidizing agent and the reducing agent.

Growing community of inventors

Corvallis, OR, United States of America

Isaac Farr