Abstract: A scroll device includes a fixed scroll with a first involute and a first cooling chamber; an orbiting scroll with a second involute and a second cooling chamber, the orbiting scroll mounted to the fixed scroll via a mechanical coupling, the orbiting scroll configured to orbit relative to the fixed scroll around an orbital axis; a flexible conduit in fluid communication with the first cooling chamber and the second cooling chamber, the flexible conduit extending around the orbital axis from a first side of the scroll device to a second side of the scroll device; and an integrated aftercooler.

Abstract: A dual-drive co-rotating scroll device includes a housing; a first scroll rotatably mounted within the housing via a first cylindrical extension and a first plurality of bearings, and having a first axis of rotation; and a second scroll rotatably mounted within the housing via a second cylindrical extension and a second plurality of bearings, and having a second axis of rotation different than the first axis of rotation. At least one of the first cylindrical extension and the second cylindrical extension may comprise a plurality of permanent magnets and operate as a rotor of a first motor. An Oldham ring may be positioned between the first scroll and the second scroll and configured to maintain a relative angular position between the first scroll and the second scroll.

Abstract: Scroll devices with cooling fluid supplied through a crankshaft are provided. The device may comprise an orbiting scroll operably connected to a fixed scroll and a crankshaft operably connected to the orbiting scroll. A first seal may be positioned about an outer surface of the crankshaft to form a seal with the outer surface. A second seal may be positioned about an outer surface of the crankshaft to form a seal with the outer surface. A first channel and a second channel extend through the crankshaft and are in fluid communication with the orbiting scroll and a fluid source and a fluid reservoir.

Abstract: A scroll device has a fixed scroll, and orbiting scroll, and at least an integrated cooling loop configured to receive coolant to cool the fixed scroll and the orbiting scroll. A flexible conduit is provided that curves radially around an orbital axis of the orbiting scroll to transfer coolant along integrated cooling loop. The integrated cooling loop separates coolant used to cool the fixed scroll and the orbiting scroll from the involutes of the scroll device providing clean operation of the scroll device. The integrated cooling loop may be defined by the flexible conduit, one or more cooling chambers, and/or one or more cooling passageways.

Abstract: A scroll device includes a fixed scroll with an idler shaft bearing, an orbiting scroll with another idler shaft bearing; and an eccentric idler shaft having first and second arms extending in opposite directions and ending at first and second ends, the first and second arms supported by the fixed scroll idler shaft bearing and the orbiting scroll idler shaft bearing, respectively. The eccentric idler shaft has a hollow core extending from the first end to the second end, with at least one channel extending through the first arm and enabling fluid communication between the hollow core and the at least one first bearing, and at least one second channel extending through the second arm and enabling fluid communication between the hollow core and the least one second bearing.

Abstract: A scroll device includes a fixed scroll with a first involute and a first cooling chamber; an orbiting scroll with a second involute and a second cooling chamber, the orbiting scroll mounted to the fixed scroll via a mechanical coupling, the orbiting scroll configured to orbit relative to the fixed scroll around an orbital axis; a flexible conduit in fluid communication with the first cooling chamber and the second cooling chamber, the flexible conduit extending around the orbital axis from a first side of the scroll device to a second side of the scroll device; and an integrated aftercooler.

Abstract: A scroll device has a fixed scroll, and orbiting scroll, and at least one cooling chamber configured to receive coolant to cool the fixed scroll or the orbiting scroll. A flexible conduit that curves around an orbital axis of the orbiting scroll may transfer coolant into or out of the at least one cooling chamber. The scroll device may have a motor with a motor jacket configured to receive coolant for cooling the motor. One or more involutes of the scroll device may comprise a wall coated or plated with a solid abrasion-resistant lubricant.

Abstract: A spark-induced breakdown spectroscopy apparatus can have a housing with an inlet and an outlet that define an analyte flow path. A laser can define a laser pathway generally transverse to an intersecting the analyte flow path. A pair of electrodes, which can have insulating shields, can be mounted within the housing and can define a spark path. An optical detection element defines an optical path. The apparatus can be used to identify an aerosolized analyte.

Abstract: An apparatus for aerosol collection and fluid analysis includes a rotary motor, an aerosol-collection disk configured for mounting on the rotary motor, and a fluid-analysis disk that is also configured for mounting on the rotary motor. The aerosol-collection disk includes at least one interior inlet, at least one peripheral outlet and a passage coupling the interior inlet with the peripheral outlet, and a particle collector opposite the peripheral outlet. The fluid-analysis disk includes at least one fluid in each of a first reservoir and in a second reservoir on or in the fluid-analysis disk and offset from a central axis of the disk, wherein each reservoir has an outlet and a stopper in the outlet of each reservoir to seal the reservoirs; and release of the fluids from the reservoirs is spin-induced.

Abstract: A spark-induced breakdown spectroscopy apparatus can have a housing with an inlet and an outlet that define an analyte flow path. A laser can define a laser pathway generally transverse to an intersecting the analyte flow path. A pair of electrodes, which can have insulating shields, can be mounted within the housing and can define a spark path. An optical detection element defines an optical path. The apparatus can be used to identify an aerosolized analyte.

Abstract: An apparatus for aerosol collection and fluid analysis includes a rotary motor, an aerosol-collection disk configured for mounting on the rotary motor, and a fluid-analysis disk that is also configured for mounting on the rotary motor. The aerosol-collection disk includes at least one interior inlet, at least one peripheral outlet and a passage coupling the interior inlet with the peripheral outlet, and a particle collector opposite the peripheral outlet. The fluid-analysis disk includes at least one fluid in each of a first reservoir and in a second reservoir on or in the fluid-analysis disk and offset from a central axis of the disk, wherein each reservoir has an outlet and a stopper in the outlet of each reservoir to seal the reservoirs; and release of the fluids from the reservoirs is spin-induced.

Abstract: The invention uses tubes for the reduction of radiated duct noise. The tubes may be used to attenuate narrow band noise by diverting a portion of the acoustic energy through the tubes back into the duct. Upon reintroducing the diverted flow out of phase with the primary flow, acoustic cancellation is achieved. The frequency at which this occurs is dependent on the difference in the path lengths through the tubes and the separation distance—the distance separating the inlet and outlet of the tube. This invention can be used over varying frequency ranges by using an arrangement of flexible, constant length tubes. The effective frequency range is tailored by varying the separation distance and also allows the varying the angular arrangement of the tubes for more effective attenuation of spinning modes having varying propagation angle.

Abstract: The invention uses tubes for the reduction of radiated duct noise. The tubes may be used to attenuate narrow band noise by diverting a portion of the acoustic energy through the tubes back into the duct. Upon reintroducing the diverted flow out of phase with the primary flow, acoustic cancellation is achieved. The frequency at which this occurs is dependent on the difference in the path lengths through the tubes and the separation distance—the distance separating the inlet and outlet of the tube. This invention can be used over varying frequency ranges by using an arrangement of flexible, constant length tubes. The effective frequency range is tailored by varying the separation distance and also allows the varying the angular arrangement of the tubes for more effective attenuation of spinning modes having varying propagation angle.

Abstract: A fluidized bed apparatus having a gas distribution plate containing a plurality of tuyeres, which tuyeres provide a uniform gas flow from the gas chamber of the apparatus to the reactor chamber of the apparatus and prevents particulate matter of the fluidized bed from backsifting from the fluid bed chamber through the gas distribution plate to the gas chamber. The tuyeres are secured in openings in the gas distribution plate and comprise a porous plate and preferably a perforated plate superposed within a flanged two-component structure which two components are screwed together or otherwise secured together to form the tuyere.

Abstract: A fluid bed reactor is provided having a grid baffle structure to provide increased theoretical stages within the reactor to enable the reactor to be used for time/temperature dependent reactions requiring a number of mixing stages and/or an increased particle residence time. The preferred baffle structure comprises a plurality of staggered first and second vertical members extending partly across the reactor from opposed sides of the reactor which form a path for the feed to travel therethrough from the inlet to the outlet of the reactor with the vertical members having vertical cross-members, preferably shorter than the vertical members, extending completely between adjacent vertical members and/or partly in the space between the members to form reaction stage sections whereby feed entering the reactor moves in a serpentine path and/or a sequential underflow and/or overflow path through the reaction stage sections of the baffle from the inlet of the reactor to the reactor outlet.

Abstract: An electrical system for transferring data concurrently between pen based computers and a host computer includes a multiple computer receptacle device for receiving a plurality of pen based computers. The multiple computer receptacle device includes a housing, and a support frame mounted in the housing for supporting the plurality of pen based computers. The support frame includes a plurality of spaced apart parallel divider panels, where adjacent divider panels define between them a slot for receiving a respective pen based computer. The support frame includes a back panel mounted on the divider panels, a plurality of data input/output connectors mounted on the back panel, and a plurality of power connectors also mounted on the back panel. The data input/output connectors and the power connectors are positioned between adjacent divider panels and are adapted to mate with corresponding data and power connectors mounted on the pen based computers.

Abstract: An electrical system for transferring data concurrently between pen based computers and a host computer includes a multiple computer receptacle device for receiving a plurality of pen based computers. The multiple computer receptacle device includes a housing, and a support frame mounted in the housing for supporting the plurality of pen based computers. The support frame includes a plurality of spaced apart parallel divider panels, where adjacent divider panels define between them a slot for receiving a respective pen based computer. The support frame includes a back panel mounted on the divider panels, a plurality of data input/output connectors mounted on the back panel, and a plurality of power connectors also mounted on the back panel. The data input/output connectors and the power connectors are positioned between adjacent divider panels and are adapted to mate with corresponding data and power connectors mounted on the pen based computers.

Abstract: An electrical system for transferring data concurrently between pen based computers and a host computer includes a multiple computer receptacle device for receiving a plurality of pen based computers. The multiple computer receptacle device includes a housing, and a support frame mounted in the housing for supporting the plurality of pen based computers. The support frame includes a plurality of spaced apart parallel divider panels, where adjacent divider panels define between them a slot for receiving a respective pen based computer. The support frame includes a back panel mounted on the divider panels, a plurality of data input/output connectors mounted on the back panel, and a plurality of power connectors also mounted on the back panel. The data input/output connectors and the power connectors are positioned between adjacent divider panels and are adapted to mate with corresponding data and power connectors mounted on the pen based computers.

Abstract: A device for insertion in the barrel or chamber of a firearm, e.g. a shotgun to prevent unauthorized use employs a key-operated lock (7) which is rotated to cause, through a screw-thread, axial movement of an operating member (25) with tapered surfaces which causes expansion of another component (21) having convergent surfaces, so as to engage tightly against the walls of the chamber. The key is used both to unlock the lock and to rotate the operating member. If an attempt is made to drive the device out from the barrel end there can be teeth (40) which spread apart to bite into the walls of the chamber.

Abstract: Apparatus is provided for withdrawing a stream of relatively static bed material from an operating fluidized bed reactor and gravity feeding it through a conduit to an exterior classifying chamber into which a downward flow of air is introduced. The airflow is turned in the classifier to move in an upward direction countercurrent to the flow of bed material. The velocity of the air is such that coarse bed material passes downwardly through the airflow and accumulates in the classifying chamber, while the fines are entrained in the upwardly moving airflow and both air and fines are introduced into the fluidized bed reactor.