Abstract: The present disclosure relates to a fan apparatus (1). The fan apparatus (1) includes an impeller (12A, 12B, 12C, 26A, 26B) for generating a flow of air. A drive means (14) is provided for driving the impeller (12A, 12B, 12C, 26A, 26B). At least in certain embodiments, the drive means (4) includes a turbine (18) adapted to be rotated by a working liquid supplied to the fan apparatus (1). The fan apparatus (1) described herein is suitable for providing air ventilation and/or air extraction, for example.

Abstract: The present disclosure relates to a fan apparatus (1). The fan apparatus (1) includes an impeller (12A, 12B, 12C, 26A, 26B) for generating a flow of air. A drive means (14) is provided for driving the impeller (12A, 12B, 12C, 26A, 26B). At least in certain embodiments, the drive means (4) includes a turbine (18) adapted to be rotated by a working liquid supplied to the fan apparatus (1). The fan apparatus (1) described herein is suitable for providing air ventilation and/or air extraction, for example.

Abstract: Materials and methods is present for manufacturing fiber reinforced parts. A powder material comprising a matrix material of a size particular distribution comprising substantially oriented fiber of a predetermined length distribution and diameter (L/D). A manufactured part that has substantially randomly oriented fiber is provided using an energy delivery system and the powder material.

Abstract: The present disclosure relates to a fan apparatus (1). The fan apparatus (1) includes an impeller (12A, 12B, 12C, 26A, 26B) for generating a flow of air. A drive means (14) is provided for driving the impeller (12A, 12B, 12C, 26A, 26B). At least in certain embodiments, the drive means (4) includes a turbine (18) adapted to be rotated by a working liquid supplied to the fan apparatus (1). The fan apparatus (1) described herein is suitable for providing air ventilation and/or air extraction, for example.

Abstract: An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having first and second open ends defining an axis of flow therebetween. The insert further comprises a valve flap connected to the insert body. The valve flap is moveable between a closed position in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve flap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.

Abstract: Materials and methods is present for manufacturing fiber reinforced parts. A powder material comprising a matrix material of a size particular distribution comprising substantially oriented fiber of a predetermined length distribution and diameter (L/D). A manufactured part that has substantially randomly oriented fiber is provided using an energy delivery system and the powder material.

Abstract: Materials and methods are presented for manufacturing fiber reinforced parts. A powder material comprising a matrix material of a particular particle size distribution comprising substantially oriented fiber of a predetermined length distribution and diameter (L/D). A manufactured part that has substantially randomly oriented fiber is provided using an energy delivery system and the powder material.

Abstract: An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having first and second open ends defining an axis of flow therebetween. The insert further comprises a valve flap connected to N the insert body. The valve flap is moveable between a closed position in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve flap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.

Abstract: A method and apparatus for forming objects. Layers of precursor material may be placed on top of each other. The layers of precursor material may be selectively cured as the layers of precursor material are placed on top of each other to form an object and a frame associated with the object.

Abstract: An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having first and second open ends defining an axis of flow therebetween. The insert further comprises a valve flap connected to the insert body. The valve flap is moveable between a closed position in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve flap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.

Abstract: A method and apparatus for forming objects. Layers of precursor material may be placed on top of each other. The layers of precursor material may be selectively cured as the layers of precursor material are placed on top of each other to form an object and a frame associated with the object.

Abstract: A method and apparatus for forming objects. Layers of precursor material may be placed on top of each other. The layers of precursor material may be selectively cured as the layers of precursor material are placed on top of each other to form an object and a frame associated with the object.

Abstract: An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having find and second open ends defining an axis of !low therebetween The insert further comprises a valve flap connected to the insert body. The valve clap is moveable between a closed position, in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve (lap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape articles over the axis of flow.

Abstract: A part is manufactured by introducing magnetic particles into a matrix material, and orienting the particles by coupling them with an electromagnetic field. The matrix material is solidified in patterned layers while the particles remain oriented by the field.

Abstract: An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having first and second open ends defining an axis of flow therebetween. The insert further comprises a valve flap connected to the insert body. The valve flap is movable between a closed position in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve flap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.

Abstract: A method and apparatus is present for manufacturing parts. A powder material is comprised of a polymer that is semi-crystalline. The powder material has an overlap between a melting temperature range and a crystallization temperature range. The powder material also has a size particular distribution that is substantially a Gaussian distribution, a particle shape that is substantially spherical, and a desired melt flow rate that is less than a temperature at which the powder material begins to chemically break down. The powder material is selected to form a selected powder material. A part is manufactured using an energy delivery system and the selected powder material.

Abstract: An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having first and second open ends defining an axis of flow therebetween. The insert further comprises a valve flap connected to the insert body. The valve flap is movable between a closed position in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve flap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.

Abstract: A part is manufactured by introducing magnetic particles into a matrix material, and orienting the particles by coupling them with an electromagnetic field. The matrix material is solidified in patterned layers while the particles remain oriented by the field.

Abstract: A method and apparatus for forming objects. Layers of precursor material may be placed on top of each other. The layers of precursor material may be selectively cured as the layers of precursor material are placed on top of each other to form an object and a frame associated with the object.

Abstract: A method and apparatus is present for manufacturing parts. A powder material is comprised of a polymer that is semi-crystalline. The powder material has an overlap between a melting temperature range and a crystallization temperature range. The powder material also has a size particular distribution that is substantially a Gaussian distribution, a particle shape that is substantially spherical, and a desired melt flow rate that is less than a temperature at which the powder material begins to chemically break down. The powder material is selected to form a selected powder material. A part is manufactured using an energy delivery system and the selected powder material.