Abstract: An earplug which conforms to the concha of the ear and extends into the ear canal. The construction consists of a flexible outer skin with at least one filler material, preferably two or more materials of varying hardness, to form an essentially solid structure except for sound channels, or electronics packages, or other devices, parts and cavities that may be located within the flexible skin. The flexible skin can be fabricated using a rapid-prototyping printing process.

Abstract: An eartip made of a resilient body with an eartip core inside the open center of the body, and a tether attached to the eartip core at an attachment region along the length of the core. A free end of the tether extends outward from the eartip, allowing a wearer to remove the eartip from their ear by pulling on the tether.

Abstract: An earplug which conforms to the concha of the ear and extends into the ear canal. The construction consists of a flexible outer skin with at least one filler material, preferably two or more materials of varying hardness, to form an essentially solid structure except for sound channels, or electronics packages, or other devices, parts and cavities that may be located within the flexible skin. The flexible skin can be fabricated using a rapid-prototyping printing process.

Abstract: An eartip made of a resilient body with an eartip core inside the open center of the body, and a tether attached to the eartip core at an attachment region along the length of the core. A free end of the tether extends outward from the eartip, allowing a wearer to remove the eartip from their ear by pulling on the tether.

Abstract: An earplug formed of a plurality of materials having different hardnesses by use of a multi-material rapid prototyping (RP) system.

Abstract: There is disclosed a method and architecture for establishing independent, secure, trusted sub-networks within a storage area network (SAN). These virtual private SANs allow secure, managed interconnections between an initiator host and a target storage device or a logical unit number (LUN) indicating a sub-portion of a target storage device. A table of allowable configurations along with a connections database are used to ensure proper, allowable data connections.

Abstract: The present invention provides a high speed, multi-ported, direct data flow memory architecture that employs memory width and speed greater than system bus width and speed to allow shallow burst depth and reduce other-port latencies, while maintaining multi-port throughput. The inventive system has a data storage device (SDRAM) and a multiplexer connected to the SDRAM. Two or more interfaces or ports are provided with data sourcing controllers respectively connected to the interfaces. A communications bus connects the SDRAM to the data sourcing controllers for facilitating data communications. A FIFO buffer memory is located between the multiplexer and the data sourcing controllers. The need for retries is eliminated and host bus widths are matched to memory data width. Read-ahead algorithms are provided that adapt the larger system bus burst sizes to the smaller memory burst sizes with the ability to cancel unneeded advance requests for data.

Abstract: The present invention provides a high speed, multi-ported, direct data flow memory architecture that employs memory width and speed greater than system bus width and speed to allow shallow burst depth and reduce other-port latencies, while maintaining multi-port throughput. The inventive system has a data storage device (SDRAM) and a multiplexer connected to the SDRAM. Two or more interfaces or ports are provided with data sourcing controllers respectively connected to the interfaces. A communications bus connects the SDRAM to the data sourcing controllers for facilitating data communications. A FIFO buffer memory is located between the multiplexer and the data sourcing controllers. The need for retries is eliminated and host bus widths are matched to memory data width. Read-ahead algorithms are provided that adapt the larger system bus burst sizes to the smaller memory burst sizes with the ability to cancel unneeded advance requests for data.

Abstract: The present invention features a system for cooling a plurality of circuit boards in a high density chassis. The system includes a circuit board enclosure assembly having a number of slots for supporting a plurality of circuit boards. A filter is disposed beneath the circuit board enclosure assembly for filtering air flowing into the circuit board enclosure. The filter also creates air turbulence, and provides a pressure head adjacent the plurality of circuit boards. An air flow is generated by a dual cage type blower that is offset from the circuit board enclosure assembly. The air flow to the circuit boards is at sufficient air pressure and air flow rate to carry heat from the circuit boards. A multi-channel plenum disposed between the dual cage type blower and the circuit board enclosure assembly diffuses and directs the air flow to the circuit board enclosure assembly in a substantially flat profile.

Abstract: The present invention features a circuit board enclosure assembly for housing a power supply and circuit boards in operative juxtaposition. A housing has a power supply access portion comprising an opening in a top portion thereof covered by a lid. An interior portion of the housing supports the power supply and the circuit board cage. The cage has a plurality of slots supporting the circuit boards. The power supply is operatively connected to the plurality of circuit boards, and is pivotably mounted upon the housing by means of a pair of hinges disposed adjacent the power supply access portion. This allows for easy accessing and substantial removal of the power supply from the interior portion of the housing, while maintaining operative connection with the plurality of circuit boards.

Abstract: A passive thermal control system for a flashlamp-pumped dye laser utilizes heated deionized water in a heat exchanger located in the reservoir of the dye lasing solution to minimize the temperature gradients in the dye lasing solution by decreasing the difference in temperature between the dye lasing solution and the deionized water flashlamp coolant.

Abstract: A research type burner is provided which permits ready optical access for study of precombustion and primary reaction zones of adiabatic flames of premixed gases. The burner includes a channel for relatively laminar gas flow having an outlet with a pair of essentially parallel closely spaced knife edges for providing an essentially stable and adiabatic flame. The knife edges project sufficiently above the burner housing to allow the passage of a laser beam between the knife edges through the zone to be studied.

Abstract: A research burner having a water-cooled hemispherical head provided with a urved upper surface adapted as a seat for a flame which is surrounded by a shroud of inert gas. The burner provides for optical access to the various zones of the flame under study for both temperature and concentration of species in a compatible mixture.