Abstract: A ductwork system including a duct having a plurality of ducting panels joined together to define a flow passage extending therethrough, and the duct having structure for resisting damage thereto caused by a detonation within the duct. The structure for resisting damage can include an internal bracing within and extending across the flow passage of the duct to tie at least two sides of the duct together. For example, the internal bracing can be a reinforcement panel including a mounting frame with one or more elongated members extending from one side of the frame attached to a ducting panel to another side of the frame attached to an opposite ducting panel. Alternatively or in addition to the above structure, the duct can have structure for resisting damage that includes providing the duct with at least one curved or faceted side along an axial length of the duct.

Abstract: A backplane interface adapter for a network switch. The backplane interface adapter includes at least one receiver that receives input cells carrying packets of data; at least one cell generator that generates encoded cells which include the packets of data from the input cells; and at least one transmitter that transmits the generated cells to a switching fabric. The cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent. The generated cells include in-band control information.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: A recycling apparatus for spent protective atmosphere gas contaminated with fouling organic decomposition byproduct materials. The recycling apparatus includes a compressor having an inlet connected to a spent protective atmosphere gas supply line, and a solvent supply configured to supply solvent to a gas passage at or upstream of the compressor. The recycling apparatus also includes a first chamber connected to an outlet of the compressor, where the first chamber is configured to receive compressed gas from the compressor and to collect a mixture including the solvent and any contaminants entrapped or dissolved in the solvent.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: A backplane interface adapter for a network switch. The backplane interface adapter includes at least one receiver that receives input cells carrying packets of data; at least one cell generator that generates encoded cells which include the packets of data from the input cells; and at least one transmitter that transmits the generated cells to a switching fabric. The cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent. The generated cells include in-band control information.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: A recycling apparatus for spent protective atmosphere gas contaminated with fouling organic decomposition byproduct materials. The recycling apparatus includes a compressor having an inlet connected to a spent protective atmosphere gas supply line, and a solvent supply configured to supply solvent to a gas passage at or upstream of the compressor. The recycling apparatus also includes a first chamber connected to an outlet of the compressor, where the first chamber is configured to receive compressed gas from the compressor and to collect a mixture including the solvent and any contaminants entrapped or dissolved in the solvent.

Abstract: A recycling apparatus for spent protective atmosphere gas contaminated with fouling organic decomposition byproduct materials. The recycling apparatus includes a compressor having an inlet connected to a spent protective atmosphere gas supply line, and a solvent supply configured to supply solvent to a gas passage at or upstream of the compressor. The recycling apparatus also includes a first chamber connected to an outlet of the compressor, where the first chamber is configured to receive compressed gas from the compressor and to collect a mixture including the solvent and any contaminants entrapped or dissolved in the solvent.

Abstract: The synthesis of benzotriazole monomers and the use of the benzotriazole monomers and one or more other monomers to prepare ultraviolet (UV) light absorbing polymer compositions. The synthetic methods described in this application provide a significant improvement over the previous methods used to prepare benzotriazole monomers.

Abstract: A synchronous serial programmable interface that programmably defines a plurality of frame definitions in which each frame definition provides signal timing for a corresponding frame used in serial data transfer. A sequencer module is used to provide a plurality of instructions, in which each instruction, when executed, obtains a frame definition from the plurality of frame definitions. Then a task scheduler selects a scheduled task from a plurality of tasks that are used in transferring data. The particular task selects one or more instructions from the plurality of instructions and obtains one or more frame definitions specified by the instruction or instructions to establish one or more frames that are used in transferring the data.

Abstract: According to an embodiment of the invention, a network device such as a router or switch provides efficient data packet handling capability. The network device includes one or more input ports for receiving data packets to be routed, as well as one or more output ports for transmitting data packets. The network device includes an integrated port controller integrated circuit for routing packets. The integrated circuit includes an interface circuit, a received packets circuit, a buffer manager circuit for receiving data packets from the received packets circuit and transmitting data packets in one or more buffers and reading data packets from the one or more buffers. The integrated circuit also includes a rate shaper counter for storing credit for a traffic class, so that the integrated circuit can support input and/or output rate shaping.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: According to an embodiment of the invention, a network device such as a router or switch provides efficient data packet handling capability. The network device includes one or more input ports for receiving data packets to be routed, as well as one or more output ports for transmitting data packets. The network device includes an integrated port controller integrated circuit for routing packets. The integrated circuit includes an interface circuit, a received packets circuit, a buffer manager circuit for receiving data packets from the received packets circuit and transmitting data packets in one or more buffers and reading data packets from the one or more buffers. The integrated circuit also includes a rate shaper counter for storing credit for a traffic class, so that the integrated circuit can support input and/or output rate shaping.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: A backplane interface adapter for a network switch. The backplane interface adapter includes at least one receiver that receives input cells carrying packets of data; at least one cell generator that generates encoded cells which include the packets of data from the input cells; and at least one transmitter that transmits the generated cells to a switching fabric. The cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent. The generated cells include in-band control information.

Abstract: According to an embodiment of the invention, a network device such as a router or switch provides efficient data packet handling capability. The network device includes one or more input ports for receiving data packets to be routed, as well as one or more output ports for transmitting data packets. The network device includes an integrated port controller integrated circuit for routing packets. The integrated circuit includes an interface circuit, a received packets circuit, a buffer manager circuit for receiving data packets from the received packets circuit and transmitting data packets in one or more buffers and reading data packets from the one or more buffers. The integrated circuit also includes a rate shaper counter for storing credit for a traffic class, so that the integrated circuit can support input and/or output rate shaping.

Abstract: A backplane interface adapter with error control and redundant fabric for a high-performance network switch. The error control may be provided by an administrative module that includes a level monitor, a stripe synchronization error detector, a flow controller, and a control character presence tracker. The redundant fabric transceiver of the backplane interface adapter improves the adapter's ability to properly and consistently receive receive narrow input cells carrying packets of data and output wide striped cells to a switching fabric.

Abstract: A backplane interface adapter for a network switch. The backplane interface adapter includes at least one receiver that receives input cells carrying packets of data; at least one cell generator that generates encoded cells which include the packets of data from the input cells; and at least one transmitter that transmits the generated cells to a switching fabric. The cell includes a destination slot identifier that identifies a slot of the switching fabric towards which the respective input cell is being sent. The generated cells include in-band control information.