Abstract: A powder handling device is provided, along with apparatus and methods of its use. The powder handling device includes a mounting portion defining a plane and comprising a mounting interface; a fixture device configured to mount the mounting portion over an opening of a powder container at a mounting interface; and a powder suction unit attached to the mounting portion and passing through the plane. The powder suction unit is movable relative to the mounting portion with at least one degree of freedom. The powder handling device may be mounted onto an opening of a powder container.

Abstract: System and method for creating clips of larger audio streams based on very accurate in point and out point and for searching for the clips. The system and method use byte signatures in MP3 or media files to accurately and efficiently find a specific cue point, such as for example, the beginning of a sentence in a podcast. The system and method are configured to search and locate a given clip even if that sequence moves inside the stream, such as for example, if the audio file adds additional content like advertisements or other audio sequence, the hash representation of the cue point can still be found with millisecond accuracy.

Abstract: System and method for creating clips of larger audio streams based on very accurate in point and out point and for searching for the clips. The system and method use byte signatures in MP3 or media files to accurately and efficiently find a specific cue point, such as for example, the beginning of a sentence in a podcast. The system and method are configured to search and locate a given clip even if that sequence moves inside the stream, such as for example, if the audio file adds additional content like advertisements or other audio sequence, the hash representation of the cue point can still be found with millisecond accuracy.

Abstract: A powder reclamation system for reclaiming a metal powder from a metal powder processing device is provided. The powder reclamation system includes a filter housing defining an inlet and an outlet; a filtered reclaimed powder hopper in communication with the outlet of the filter housing for receiving a filtered reclaimed powder; a powder recirculation passageway configured for providing a flow of powder to a metal powder processing device, the powder recirculation passageway in flow communication with the filtered reclaimed powder hopper; a virgin powder hopper containing a virgin powder also in communication with the powder recirculation passageway; and a controller operable with the powder reclamation system for providing a mixture of the filtered reclaimed powder and the virgin powder through the powder recirculation passageway.

Abstract: A powder sieving system that is configured as part of a powder reclamation system is provided. The powder sieving system includes a support structure; and a filter housing movable relative to the support structure, the filter housing defining an inlet and an outlet and comprising a broad frequency filter disposed between the inlet and the outlet, the broad frequency filter including: a first filter fixed relative to the filter housing, the first filter being substantially rigid; and a second filter coupled within the filter housing adjacent to the first filter, the second filter being substantially flexible such that the second filter is movable relative to the first filter within the filter housing when the filter housing moves relative to the support structure, the first filter and the second filter configured to restrict a first portion of a powder larger than a predetermined threshold from reaching the outlet.

Abstract: A sieving system for a powder is provided. The sieving system includes a support structure; a filter housing movable relative to the support structure, the filter housing defining an inlet and an outlet, the filter housing comprising a broad frequency filter disposed between the inlet and the outlet, the broad frequency filter configured to restrict a first portion of the powder larger than a predetermined threshold from reaching the outlet; and a powder mass control assembly configured to determine data indicative of a powder mass within a portion of the sieving system and control one or more operations of the sieving system based on the determined data indicative of the powder mass.

Abstract: A circuit of control of ultrasound transducers, is configurable according to the type of transducers to be controlled, and includes a first terminal intended to be coupled to a first electrode of each of the transducers, and a bias switch configurable to couple the first terminal to one or the other of first and second bias nodes according to the type of transducers to be controlled.

Abstract: A powder reclamation system for reclaiming a metal powder from a metal powder processing device is provided. The powder reclamation system includes a filter housing defining an inlet and an outlet; a filtered reclaimed powder hopper in communication with the outlet of the filter housing for receiving a filtered reclaimed powder; a powder recirculation passageway configured for providing a flow of powder to a metal powder processing device, the powder recirculation passageway in flow communication with the filtered reclaimed powder hopper; a virgin powder hopper containing a virgin powder also in communication with the powder recirculation passageway; and a controller operable with the powder reclamation system for providing a mixture of the filtered reclaimed powder and the virgin powder through the powder recirculation passageway.

Abstract: A powder sieving system that is configured as part of a powder reclamation system is provided. The powder sieving system includes a support structure; and a filter housing movable relative to the support structure, the filter housing defining an inlet and an outlet and comprising a broad frequency filter disposed between the inlet and the outlet, the broad frequency filter including: a first filter fixed relative to the filter housing, the first filter being substantially rigid; and a second filter coupled within the filter housing adjacent to the first filter, the second filter being substantially flexible such that the second filter is movable relative to the first filter within the filter housing when the filter housing moves relative to the support structure, the first filter and the second filter configured to restrict a first portion of a powder larger than a predetermined threshold from reaching the outlet.

Abstract: A powder sieving system is provided. The powder sieving system includes a filter housing including a filter for separating powder into a first portion larger than a predetermined size and a second portion smaller than a predetermined size, the powder being a reactive metal powder; a network of passageways configured to move the powder through the powder sieving system, the network of passageways located upstream of the filter housing and downstream of the filter housing, the network of passageways comprising one or more carrier gas passageways for primarily transporting a carrier gas flow and one or more powder passageways for transporting a mixture flow of carrier gas and the powder; and a first sensor in communication with a portion of the powder sieving system, the first sensor configured to monitor an amount of oxygen within the network of passageways, wherein the first sensor is an optical sensor.

Abstract: A powder reclamation system is provided. The powder reclamation system includes a support structure; a filter housing movable relative to the support structure, the filter housing defining an inlet and an outlet; a raw reclaimed powder hopper in communication with the inlet of the filter housing; a first reclamation passageway in communication with the raw reclaimed powder hopper and configured to be in communication with a first metal powder processing device to recover a first unused portion of a first powder from the first metal powder processing device to the raw reclaimed powder hopper; and a second reclamation passageway in communication with the raw reclaimed powder hopper and configured to be in communication with a second metal powder processing device to recover a second unused portion of a second powder from the second metal powder processing device to the raw reclaimed powder hopper.

Abstract: A sieving system for a powder is provided. The sieving system includes a support structure; a filter housing movable relative to the support structure, the filter housing defining an inlet and an outlet, the filter housing comprising a broad frequency filter disposed between the inlet and the outlet, the broad frequency filter configured to restrict a first portion of the powder larger than a predetermined threshold from reaching the outlet; and a powder mass control assembly configured to determine data indicative of a powder mass within a portion of the sieving system and control one or more operations of the sieving system based on the determined data indicative of the powder mass.

Abstract: A circuit of control of ultrasound transducers, is configurable according to the type of transducers to be controlled, and includes a first terminal intended to be coupled to a first electrode of each of the transducers, and a bias switch configurable to couple the first terminal to one or the other of first and second bias nodes according to the type of transducers to be controlled.

Abstract: A hydrogen-air fuel cell having a mobile element capable of, in closed position, covering the cell cathode in substantially tight fashion.

Abstract: A thin wafer comprising through holes filled at least partially with conductive carbon nanotubes generally oriented transversally to the wafer. A fuel cell comprising, in a thin wafer, a through hole filled with an electrolyte surrounded with barriers of carbon nanotubes generally oriented transversally to the wafer.

Abstract: A hydrogen-air fuel cell having a mobile element capable of, in closed position, covering the cell cathode in substantially tight fashion.

Abstract: A fuel cell having its active stack resting on a thin conductive layer, bearing on a wafer provided with through gas inlet channels, the thin conductive layer protruding in the active stack in front of each channel and being transparent to the gas.

Abstract: A fuel battery cell covered with a hydrophilic polymer layer.