Abstract: A transducer capable of generating vibrational energy is positioned relative to an inkjet cartridge to impart a vibrational force to simultaneously vibrate at least a portion of each of a plurality of ink fluidic columns associated with a plurality of nozzles in a printhead of the inkjet cartridge to maintain or recover nozzle function.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A solid freeform fabrication system includes a powdered build material deposited as a layer in a fabrication bin; a binding powder deposited as a layer over the layer of powdered build material; and an activating fluid that is selectively dispensed from an ejection head to activate the binding powder. The activated binding powder then selectively binds the build material into a cross-section of an object being fabricated.

Abstract: Solid freeform fabrication systems, powder supply bins for solid freeform fabrication systems, and methods of solid freeform fabrication are disclosed. One exemplary solid freeform fabrication system includes a powder supply bin, a build bin, a roller, and a print head disposed above the build bin that deposits a binder onto the powder in the build bin in a preselected pattern, the supply bin and/or the build bin translating in a x- and/or y-direction relative to the print head.

Abstract: The present invention is drawn toward materials, methods and systems for solid free-form fabrication of three dimensional objects. In one embodiment, a method can comprise a) applying a particulate blend in a layer, wherein the particulate blend includes calcium aluminate particulates and polymeric binder particulates; b) dispensing an aqueous polyol-containing liquid vehicle onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area; c) hardening the hydrated cement; and d) repeating steps a) through c) such that multiple layers of the cement are formed that are bound to one another, thereby forming the three dimensional object.

Abstract: A method for solid free-form fabrication of a three-dimensional metal object includes depositing a particulate blend in a defined region, the particulate blend including a number of metal or metal alloy particulates and a peroxide, and selectively ink-jetting a binder system onto a predetermined area of the particulate blend to form a green part, wherein the liquid phase binder includes a water soluble monofunctional acrylate-based monomer, a water soluble difunctional acrylate-based monomer, an amine, and water.

Abstract: A method for creating a three-dimensional solid freeform fabrication object with non-reactive powder includes spreading a non-reactive powder on a substrate, selectively dispensing a reactive resin onto the non-reactive powder forming a mixture of reactive resin and non-reactive powder, wherein the selective dispensing of the reactive resin defines the three-dimensional object, and curing the reactive resin thereby encapsulating the non-reactive powder.

Abstract: Hot-melt Seal For Nozzles on Print Cartridges And Method. A layer of hot-melt is adhesively bonded to a print cartridge to seal the nozzles through which ink is jetted. In another aspect, a layer of hot-melt seals the electrical contacts and leads mounted on the print cartridge. The hot-melt adhesive can be either laminated with a moisture retardant (preferably impermeable) base film or block coated on moisture retardant (preferably impermeable) pouch material. These materials are thereafter adhesively bonded to the print cartridge, sealing the nozzles and preferably the electrical contacts and leads as well. In one application process, a hot-melt moisture retardant laminate tape is cut to size, releasably captured, positioned over the nozzles, and heat staked to seal the nozzles of the print cartridge. In a second application process, a layer of hot-melt is directly applied over the nozzles and a layer of moisture retardant material is heat staked to the hot-melt.

Abstract: Fluid-ejection devices capable of ejecting fluid onto media and methods for their manufacture are provided. One embodiment includes adhering a fluid-ejecting substrate of the fluid-ejection device to a carrier of the fluid-ejection device by drawing an adhesive between the fluid-ejecting substrate and the carrier using capillary action.

Abstract: A fluid-ejection assembly that includes a substantially-rigid substrate and an ejection head configured to be positioned in a fixed relationship relative to the substantially-rigid substrate. The ejection head is configured to eject a fluid based on an ejection signal received via a conductive pattern defined on the substrate.

Abstract: The present invention is drawn toward materials, methods and systems for solid free-form fabrication of three dimensional objects. In one embodiment, a method can comprise a) applying a particulate blend in a layer, wherein the particulate blend includes calcium aluminate particulates and polymeric binder particulates; b) dispensing an aqueous polyol-containing liquid vehicle onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area; c) hardening the hydrated cement; and d) repeating steps a) through c) such that multiple layers of the cement are formed that are bound to one another, thereby forming the three dimensional object.

Abstract: A fluid-ejection assembly that includes a substantially-rigid substrate and an ejection head configured to be positioned in a fixed relationship relative to the substantially-rigid substrate. The ejection head is configured to eject a fluid based on an ejection signal received via a conductive pattern defined on the substrate.

Abstract: A rapid prototyping system preferably includes a basic component in powder form selected from the group consisting of a metal oxide, and one or more aluminosilicate glasses; an acidic component (polymeric, oligomeric or polymerizable low molecular weight acid or hydrolyzable acidic metal salt); and an aqueous binder capable of stimulating a crosslinking reaction between the basic component and the acidic component to form a three-dimensional printed object.

Abstract: A rapid prototyping system preferably includes a basic component selected from the group consisting of a metal oxide, and one or more aluminosilicate glasses; an acidic component (polymeric, oligomeric or polymerizable low molecular weight acid or hydrolyzable acidic metal salt); and an aqueous binder capable of stimulating a crosslinking reaction between the basic component and the acidic component to form a three-dimensional printed object.

Abstract: Hot-melt Seal For Nozzles on Print Cartridges And Method. A layer of hot-melt is adhesively bonded to a print cartridge to seal the nozzles through which ink is jetted. In another aspect, a layer of hot-melt seals the electrical contacts and leads mounted on the print cartridge. The hot-melt adhesive can be either laminated with a moisture retardant (preferably impermeable) base film or block coated on moisture retardant (preferably impermeable) pouch material. These materials are thereafter adhesively bonded to the print cartridge, sealing the nozzles and preferably the electrical contacts and leads as well.

Abstract: A self-aligned interconnect significantly reduces manufacturing costs and provides important advantages in a number of specific applications begins with a single crystal substrate. The substrate is machined to accept microelectronic chips at various locations (openings) along the substrate. Corresponding chips are constructed to precisely fit the openings in the crystal substrate. To ensure precision fit, both the substrate and the chip are etched along the same crystal plane. As a result, the chips can be placed in the openings in the substrate with perfect or nearly perfect alignment in the x and y directions without expensive alignment tools. In effect, the chips and the substrate are self aligned.