Abstract: Disclosed is a conformable, stretchable and electrical conductive structure, which includes an auxetic structure, and a plurality of electrical conductors. The plurality of electrical conductors being incorporated within the auxetic structure, to form conformable, stretchable electrical interconnects, configured based on a design of the auxetic structure and placement of the electrical conductors incorporated with the auxetic structure.

Abstract: A Hydrodynamic separation device using curved channels is provided. High aspect ratio channels improve the focusing dynamics of the hydrodynamic separator and leads to improved channel design choices.

Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.

Abstract: Disclosed is a conformable, stretchable and electrical conductive structure, which includes an auxetic structure, and a plurality of electrical conductors. The plurality of electrical conductors being incorporated within the auxetic structure, to form conformable, stretchable electrical interconnects, configured based on a design of the auxetic structure and placement of the electrical conductors incorporated with the auxetic structure.

Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.

Abstract: Methods of fabricating a printhead having integrated inkjet nozzles are disclosed. The methods include injection molding the printhead having a plurality of manifold features and embossing jet features extending between the manifold features and an outer surface of the printhead.

Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.

Abstract: A print head includes an inlet port that receives a flow of a phase-change ink and an outlet port that delivers the flow to a jet. The print head includes a flow path along a flow direction from the inlet port to the outlet port. The flow path has top and bottom planar surfaces, and further includes two or more elongated grooves in at least one of the top and bottom planar surfaces. The two or more elongated grooves are at an angle to the flow direction and have a threshold capillary dimension such that bubbles in the phase-change ink are directed along the elongated grooves.

Abstract: Embodiments are directed to a polymeric print head useful for inkjet printing. The inkjet print head has an injection molded, polymeric ink-carrying portion that includes conductive particles. The print head also includes a plurality of inductor coils embedded in a inductive heating portion. The plurality of inductor coils are configured to generate a magnetic field that induces heat in the conductive particles. The print head includes a source of high frequency, low amperage alternating current that is configured to supply current to at least one of the plurality of inductor coils.

Abstract: Embodiments are directed to a polymeric print head useful for inkjet printing. The inkjet print head has an injection molded, polymeric ink-carrying portion that includes conductive particles. The print head also includes a plurality of inductor coils embedded in a inductive heating portion. The plurality of inductor coils are configured to generate a magnetic field that induces heat in the conductive particles. The print head includes a source of high frequency, low amperage alternating current that is configured to supply current to at least one of the plurality of inductor coils.

Abstract: An inkjet printhead includes multiple inkjets arranged in a jetstack of the printhead. Each inkjet includes an inkjet nozzle and an actuator that controllably dispenses drops of a heat activated phase change ink according to a predetermined pattern. One or more heaters are arranged along the jetstack to heat the phase change ink to a temperature above the melting point of the ink. The printhead includes at least one pulsating heat pipe thermally coupled to the jetstack.

Abstract: A print head includes an inlet port that receives a flow of a phase-change ink and an outlet port that delivers the flow to a jet. The print head includes a flow path along a flow direction from the inlet port to the outlet port. The flow path has top and bottom planar surfaces, and further includes two or more elongated grooves in at least one of the top and bottom planar surfaces. The two or more elongated grooves are at an angle to the flow direction and have a threshold capillary dimension such that bubbles in the phase-change ink are directed along the elongated grooves.

Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.

Abstract: Methods of fabricating a printhead having integrated inkjet nozzles are disclosed. The methods include injection molding the printhead having a plurality of manifold features and embossing jet features extending between the manifold features and an outer surface of the printhead.

Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.

Abstract: An inkjet printhead includes an oleophobic membrane arranged at a location that allows the oleophobic membrane to simultaneously vent air from an ink flow channel of the printhead and to retain ink within the ink flow channel. The oleophobic membrane includes a metal structure having a nanostructured surface and low-surface energy coating disposed on the metal structure.

Abstract: An ink jet printer subassembly comprises an ink flow channel that includes an oleophobic membrane configured to contain ink in the ink flow channel while allowing air to vent out of the ink flow channel through the oleophobic membrane.

Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.

Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.

Abstract: A low-cost integrated reflector and heat spreader for high-density high power solid-state (e.g., LED) lighting arrays includes a base structure onto which is applied a sacrificial material. A relatively thick thermal spray coating is applied over the base structure and sacrificial material. The sacrificial material is removed. A channel(s) is thereby provided within the thermal spray coating layer and in physical contact with the base structure. The channel may be filled with a cooling fluid. A pulsating heat pipe heat spreader may thereby be provided. A reflective material may be provided either over another surface of the base structure or alternatively over the thermal spray coating layer to provide a surface for reflecting and directing light emitted from a solid state light source that may be secured to the integrated reflector and heat spreader.