Abstract: A crossflow filter device for filtering a pressurised feed liquid is provided. The crossflow filter device comprises: a filter membrane; a flow channel for the pressurised feed liquid which extends in a path over a retentate surface of the membrane such that the direction of flow in the channel is tangential to the retentate surface, and a filtrate derived from the feed liquid passes through the membrane leaving retentate liquid in the flow channel; and a collection chamber for the filtrate formed on an opposite, filtrate surface of the membrane. The crossflow filter device further comprises a sealed housing having a retentate side and a filtrate side which enclose therebetween the flow channel, the filter membrane and the collection chamber.

Abstract: A crossflow filter device for filtering a pressurised feed liquid is provided. The crossflow filter device comprises: a filter membrane; a flow channel for the pressurised feed liquid which extends in a path over a retentate surface of the membrane such that the direction of flow in the channel is tangential to the retentate surface, and a filtrate derived from the feed liquid passes through the membrane leaving retentate liquid in the flow channel; and a collection chamber for the filtrate formed on an opposite, filtrate surface of the membrane. The crossflow filter device further comprises a sealed housing having a retentate side and a filtrate side which enclose therebetween the flow channel, the filter membrane and the collection chamber. The crossflow filter device further comprises, flow channel guide walls provided at an inner surface of the retentate side of the housing.

Abstract: A crossflow filter device for filtering a pressurised feed liquid is provided. The crossflow filter device comprises: a filter membrane; a flow channel for the pressurised feed liquid which extends in a path over a retentate surface of the membrane such that the direction of flow in the channel is tangential to the retentate surface, and a filtrate derived from the feed liquid passes through the membrane leaving retentate liquid in the flow channel; and a collection chamber for the filtrate formed on an opposite, filtrate surface of the membrane. The crossflow filter device further comprises a sealed housing having a retentate side and a filtrate side which enclose therebetween the flow channel, the filter membrane and the collection chamber. The crossflow filter device further comprises, flow channel guide walls provided at an inner surface of the retentate side of the housing.

Abstract: A fabrication process and method for producing grayscale or full color three-dimensional objects by depositing a first part material layer, printing a first colorization layer on to the first part material layer, depositing a second part material layer on to the first colorization layer, and printing a second colorization layer on to the second part material layer. The part material deposition and coloring agent deposition operations may be repeated until a three-dimensional colored object is formed. The colorization inks used to form at least one of the first and second colorization layers allow the creation of grayscale or full color 3D printed parts. The process facilitates deposition of colorization agents on a part material to produce full color parts, improves color gamut and resolution, allows creation of hidden features within parts (e.g., wear indicators), and enhances aesthetics and functionality of three-dimensional objects with the use of color.

Abstract: A fabrication process for producing three-dimensional objects and removable support structures. The removal of the support structure from the object is facilitated by the deposition of a release agent or a release layer between the object and the support structure. The removal of the support structure may be further facilitated by applying forced cooling, filament density adjustments, or changes in deposition pressure to the object and/or the support structure during fabrication.

Abstract: Embodiments of the invention rely on simple time measurements to extract rich performance analysis from a graphics program. The invention times the program as it repeatedly executes on a selected platform, while a series of variations are applied to the program with each execution. As a result, without requiring any specific profiling tools for the platform, a developer can analyze and understand the performance characteristics of the program based upon these elapsed time measurements. The program can then be optimized to incorporate variations that improve execution time.

Abstract: An installed product includes mechanical components and associated sensors. A computer is programmed with an operational optimization model for the installed product, including modeling of the mechanical components and sensors. The computer is also programmed with a probability estimation model that provides an estimate of a difference measure related to input and output of the installed product. Sensor data is received, which had been generated during operation of the installed product. Output is generated from the operational optimization model based on the received sensor data. Output is generated from the probability estimation model based at least in part on the output from the operational optimization model. At least one installed product component is modified based at least in part on the output from the probability estimation model.

Abstract: A plumbing device for coupling a urinal to a soil pipe is provided. The device includes a nipple portion defining a first opening configured to be in fluid communication with the urinal and a second opening configured to be in fluid communication with a “T” receptor on a waste line. The nipple portion further having straight male threading of a pitch that is slightly less than the pitch of the “T” receptor's threading so that as the device is rotated into the “T” receptor a watertight seal is formed. Finally as the nipple portion has no tapered threading it may be cut at any point along its length. The device also includes a flanged portion proximate to and about the first opening configured to receive a resilient gasket on its surface to provide a watertight seal with a urinal and with arms extending radially from the center of the flanged portion containing a structure to receive the urinal mounting bolts.

Abstract: Embodiments of the invention rely on simple time measurements to extract rich performance analysis from a graphics program. The invention times the program as it repeatedly executes on a selected platform, while a series of variations are applied to the program with each execution. As a result, without requiring any specific profiling tools for the platform, a developer can analyze and understand the performance characteristics of the program based upon these elapsed time measurements. The program can then be optimized to incorporate variations that improve execution time.

Abstract: A photodiode is provided according to various embodiments. In some embodiments, the photodiode includes a substrate and an active region. The active region is configured to receive light through the substrate. In such a configuration, the substrate not only participates in the photodiode operation acts as a light filter depending on the substrate material. In some embodiments, the active region may include solder balls that may be used to couple the photodiode to a printed circuit board. In some embodiments, the active region is coupled face-to-face with the printed circuit board.

Abstract: A photodiode is provided according to various embodiments. In some embodiments, the photodiode includes a substrate and an active region. The active region is configured to receive light through the substrate. In such a configuration, the substrate not only participates in the photodiode operation acts as a light filter depending on the substrate material. In some embodiments, the active region may include solder balls that may be used to couple the photodiode to a printed circuit board. In some embodiments, the active region is coupled face-to-face with the printed circuit board.

Abstract: A method of controlling the flow of unbound powder in a build chamber. A build surface for receiving the powder is provided, with the build surface including a first plate defining holes and a second plate defining a plurality of openings spaced apart and offset from the plurality of holes in the first plate. The second plate is disposed below and spaced from the first plate. A vacuum source is provided below the build surface.

Abstract: The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

Abstract: A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also includes a vacuum system for loading powder into a feed reservoir or chamber. The vacuum system can also be used to cleanup excess powder. Other powder control features include powder gutters and magnetic powder plows. During printing, a cleaning system operates to remove powder from the printheads. In the event of a printhead or jet failure, the failure can be detected and corrective measures taken automatically. After printing, the model can be depowdered and infiltrated in an enclosure.

Abstract: The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

Abstract: A build chamber for use in a three-dimensional printer and adapted for receiving powder for producing three-dimensional objects. The build chamber includes a build surface for receiving the powder, with the build surface including a first plate defining holes and a second plate defining a plurality of openings spaced apart and offset from the plurality of holes in the first plate. The second plate is disposed below and spaced from the first plate.

Abstract: The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

Abstract: A novel package that integrates components for a modulating retro reflector into a single package is disclosed according to various embodiments. According to some embodiments the package is configured to secure a retro reflector, a quantum well modulator and photodiode. In some embodiments, the package may include interconnects to surface mount to a circuit board. Such interconnects may be coupled with the photodiode and/or the quantum well modulator. In some embodiments, the package may be constructed of liquid crystal polymers and/or may include one or more windows.

Abstract: The present invention provides methods and products effective for ocular enhancement conditioning of users attempting to successfully hit or otherwise make contact with objects projected towards, away from or at angles by the users, and increasing efficacy in hitting and contact.

Abstract: The present invention provides methods and products effective for ocular enhancement conditioning of users attempting to successfully hit or otherwise make contact with objects projected towards, away from or at angles by the users, and increasing efficacy in hitting and contact.