Abstract: A system, an apparatus and a method for configuring a display ID are provided. The system comprises a setting unit, a plurality of displays and a plurality of switches. Wherein, the displays are electrically coupled to the setting unit, and the switches are configured in between the setting unit and its corresponding display. Each of the switches corresponds to one of the displays, and is turned on or turned off by its corresponding display. When the setting unit issues a setting ID instruction, all of the switches is turned on by its corresponding display. Thereafter, the setting unit issues a plurality of identification configuration instructions. By sequentially turning off each of the switches, the ID of the corresponding display can be configured by each of the ID configuration instructions.

Abstract: A new and improved wafer support for supporting wafers in a process chamber such as an edge bead removal (EBR) chamber. The wafer support comprises multiple wafer support units each including a gripper block that engages an edge portion or bevel of the wafer. The gripper block is attached to an engaging and disengaging mechanism for selectively causing engagement of the gripper blocks with the wafer to support the wafer and disengagement of the gripper blocks from the wafer to release the wafer for removal of the wafer from the chamber. The gripper blocks contact little or none of the surface area on the patterned surface of the wafer to prevent or substantially reduce the formation of contact-induced defects on the wafer.

Abstract: A new and improved wafer support for supporting wafers in a process chamber such as an edge bead removal (EBR) chamber. The wafer support comprises multiple wafer support units each including a gripper block that engages an edge portion or bevel of the wafer. The gripper block is attached to an engaging and disengaging mechanism for selectively causing engagement of the gripper blocks with the wafer to support the wafer and disengagement of the gripper blocks from the wafer to release the wafer for removal of the wafer from the chamber. The gripper blocks contact little or none of the surface area on the patterned surface of the wafer to prevent or substantially reduce the formation of contact-induced defects on the wafer.

Abstract: A system (10) and method for high-speed massive magnetic imaging on a spin-stand (12) is provided. The system (10) includes a spin-stand system (12) for driving a rotational spindle (20) to which a magnetic hard disk (30) is mounted. A magnetic read head (40) reads data from disk (30) and is in electrical communication with a universal head preamplification board (50). The universal head preamplification board (50) outputs readable voltage signals which are transmitted to an oscilloscope (60) for displaying a read-back voltage display (70). The signals are processed by a processing means (90) to generate scanned image data (100) on a display means. The display signals (70) are utilized to calibrate the magnetically read data to account for the eccentricity of the hard disks with respect to the center of rotation of the spin-stand spindle. Whole tracks of hard disk data can be imaged through the process of “track-centering” and “track-following”.

Abstract: A gas turbine engine of a fan bypass type includes an exhaust shroud having a perforated tubular wall extending between a forward end and an aft end. The exhaust shroud is adapted to be affixed to a gas turbine engine exhaust for discharging engine exhaust gases without substantial blockage thereto. The perforations formed in the shroud wall communicate the regions at both sides of the shroud wall to pass fluid flow across the perforated shroud wall so that the mixing of the engine exhaust gases with a surrounding fluid flow is enhanced. The mixing of the engine exhaust gases with the surrounding fluid flow is further enhanced by a trailing edge of the exhaust shroud. The trailing edge is deviated from a straight line in a circumferential direction of the tubular wall to effectively increase the peripheral length of the mixing boundary. Thus, the jet noise contribution volume of the engine exhaust gases is effectively reduced, thereby significantly reducing the aero-engine jet noise.

Abstract: A gas turbine engine includes an exhaust flow guide attached to the engine exhaust end. The exhaust flow guide is made of a piece of sheet metal curved about the central longitudinal axis of the engine to form a partial portion of a nozzle having curved leading and trailing edges, and side edges. The exhaust flow guide asymmetrically affects the downstream jet noise contribution volume of the exhaust gases discharged from the engine exhaust end to change the jet noise directivity and reduce its power level. The exhaust flow guide can further include additional features such as perforations, corrugated surfaces, reinforcing strips and irregularly shaped trailing edges to further improve the mixing of exhaust gas flow with surrounding fluid flow to further reduce the downstream jet noise contribution volume, thereby resulting in jet noise reduction. The exhaust flow guide according to the present invention also improves attenuation of engine noise generated in the engine and emitted from the engine exhaust end.

Abstract: A gas turbine engine includes an exhaust flow guide attached to the engine exhaust end. The exhaust flow guide is made of a piece of sheet metal curved about the central longitudinal axis of the engine to form a partial portion of a nozzle having curved leading and trailing edges, and side edges. The exhaust flow guide asymmetrically affects the downstream jet noise contribution volume of the exhaust gases discharged from the engine exhaust end to change the jet noise directivity and reduce its power level. The exhaust flow guide can further include additional features such as perforations, corrugated surfaces, reinforcing strips and irregularly shaped trailing edges to further improve the mixing of exhaust gas flow with surrounding fluid flow to further reduce the downstream jet noise contribution volume, thereby resulting in jet noise reduction. The exhaust flow guide according to the present invention also improves attenuation of engine noise generated in the engine and emitted from the engine exhaust end.

Abstract: An extensible packaging element is disclosed for positioning and cushioning an article. The extensible packaging element comprises two fasteners and a stretchable portion. The two fasteners are mounted on two ends of the packaging element so that the extensible packaging element can link with another extensible packaging element to extend the size of the extensible packaging element. Therefore, the connected extensible packaging element can suit articles of various sizes and weights. According to the invention, the cost of the molds can be decreased and the manufacturing efficiency can be improved. A stretchable packaging element is also disclosed for positioning and cushioning an article. The stretchable packaging element comprises two non-stretchable portions and a stretchable portion. The stretchable packaging element is manufactured in one size for saving the space and reducing the cost. They are used to package up articles of various sizes.

Abstract: A butterfly valve noise suppressor is provided for reducing the noise generated by a gas flow passing through an open butterfly valve having a disc pivotally mounted in a valve housing for rotation about a transverse axis between an open and a closed position thereof. The noise suppressor includes a plurality of flat and perforated baffle plates arranged in a cruciform configuration, mounted in a flow path immediately downstream of the pivotal disc, axially extending and thereby dividing the downstream flow path into four axial and quadrant cross-sectional segments. The gas flow passing the edge of the pivotal disc in the valve generates a flow turbulence to form an unsteady large wake downstream of the valve. This unsteady wake is the source of noise. The cruciform baffle plates permit the gas flow to pass therethrough without obstruction thereto, while allowing the turbulence to communicate laterally through the perforation, thereby dissipating the wake unsteadiness to reduce noise.

Abstract: A gas turbine engine fan assembly includes fan blades spaced axially from stator vanes inside an annular bypass duct. A plurality of perforated baffle plates are installed in the annular bypass duct downstream of the stator vanes. The perforated baffle plates extend in a generally axial direction and are unevenly, circumferentially spaced apart from one another to divide a major section of the annular bypass duct into a plurality of axial flow-path segments in an asymmetrical pattern to disrupt continuity, destroy a symmetrical pattern and absorb sound energy of a spinning mode of sound pressures imbedded in the air flow downstream of the stator vanes, without substantially affecting a thrust provided by the air flow when discharged from the bypass duct.

Abstract: The present invention relates to a convertible board holder for positioning and cushioning at least one article each having two continuous side walls. The convertible board holder comprises a first portion, a second portion and a hinged portion. The first portion has at least one first transverse recess. The second portion has at least one second transverse recess corresponding to the first transverse recess of the first portion. The hinged portion continuously connects between the first portion and the second portion in a corrugated form so that when the first portion and the second portion are rotationally converted about the hinged portion at a certain angle, the first transverse recess and second transverse recess are adapted to receive the two side walls of the article, respectively. Therefore, the convertible board holder of the invention can position and cushion at least two side walls of an article. The convertible board holder can position and cushion a plurality of articles.

Abstract: The present invmntion relates to a convertible board holder for positioning and cushioning at least one article each having two continuous side walls. The convertible board holder comprises a first portion, a second portion and a hinged portion The first portion has at least one first transverse recess. The second portion has at least one second transverse recess corresponding to the first recess of the first portion. The hinged portion continuously connects between the first portion and the second portion in a corrugated form so that when the first portion and the second portion are rotationally converted about the hinged portion at a certain angle, the first transverse recess and second transverse recess are adapted to receive the two side walls of the article, respectively. Therefore, the convertible board holder of the invention can position and cushion at least two side walls of an article. The convertible board holder can position and cushion a plurality of articles.

Abstract: A gas turbine engine rotor assembly such as a fan or compressor includes fan blades spaced axially from stator vanes inside an annular duct. A controlled air blowing system is secured to the annular duct and adapted to blow a hot air flow in a direction opposite to the rotation of the fan blades into the annular duct between the fan blades and the stator vanes, to impart an opposite rotational momentum with respect to the air compressed by the rotor blades, in a asymmetrical pattern to interfere with or destroy a symmetrical pattern of the blade rotation-wake of the compressed air, thereby reducing the strength or preventing the generation of the spinning mode so that the fan-stator interaction tones are significantly reduced.

Abstract: A gas turbine engine of a fan bypass type includes an exhaust shroud having a perforated tubular wall extending between a forward end and an aft end. The exhaust shroud is adapted to be affixed to a gas turbine engine exhaust for discharging engine exhaust gases without substantial blockage thereto. The perforations formed in the shroud wall communicate the regions at both sides of the shroud wall to pass fluid flow across the perforated shroud wall so that the mixing of the engine exhaust gases with a surrounding fluid flow is enhanced. The mixing of the engine exhaust gases with the surrounding fluid flow is further enhanced by a trailing edge of the exhaust shroud. The trailing edge is deviated from a straight line in a circumferential direction of the tubular wall to effectively increase the peripheral length of the mixing boundary. Thus, the jet noise contribution volume of the engine exhaust gases is effectively reduced, thereby significantly reducing the aero-engine jet noise.

Abstract: The present invention relates to a container assembly comprising a first container unit and a second container unit. The first container unit is used to receive articles. The two container units are connected by fastener members. The first container unit is spaced apart from the second container unit to define a distance for isolation. The second container unit has a transversely corrugated section formed on a lower portion of the container unit to allow the user to easily hold the container assembly, to strengthen the support of the container assembly and to increase the capacity of the container assembly. In consideration of convenience and environmental protection, after the container assembly is used, the two container units can be separated. The first container unit can be thrown away, and the second container unit can be used again to connect to a new first container unit. The container assembly is therefore economic and convenient.

Abstract: A gas turbine engine fan assembly includes fan blades spaced axially from stator vanes inside an annular bypass duct. A plurality of perforated baffle plates are installed in the annular bypass duct downstream of the stator vanes. The perforated baffle plates extend in a generally axial direction and are unevenly, circumferentially spaced apart from one another to divide a major section of the annular bypass duct into a plurality of axial flow-path segments in an asymmetrical pattern to disrupt continuity, destroy a symmetrical pattern and absorb sound energy of a spinning mode of sound pressures imbedded in the air flow downstream of the stator vanes, without substantially affecting a thrust provided by the air flow when discharged from the bypass duct.

Abstract: The pulp mold of the invention comprises a plurality of successive pulp mold units. Each unit comprises a plurality of higher and lower surfaces such that the pulp mold has a plurality of corrugated surfaces to provide a plurality of cushions and to simulate the deformation and spring recovery effect for performing positioning and cushioning. The pulp mold of the invention can adjust the number of pulp mold unit according to the weight and size of the article. The molding unit means of the invention can be constructed to be suitable for various articles. When the articles are no longer manufactured, the molding unit means can be re-constructed to be suitably used on other products.

Abstract: An altar includes a cabinet body and a platform, which is located in front of the cabinet body and which has a flat top surface. The cabinet body has an interior chamber and several columns of compartments, each of which is open to the interior chamber and each of which is provided with an openable door. Several box sets are disposed within the interior chamber, and are located respectively behind the columns. Each of the box sets includes an endless flexible member which can be circulated by a driving unit, and a plurality of boxes which are attached to the flexible member. Each of the flexible members can be controlled by a switch member to circulate or stop. Accordingly, each of the boxes can be moved to be aligned with a selected corresponding column of the compartments.

Abstract: A noise attenuating device for reducing the noise generated by a gas flow passing through an open butterfly valve having a disc pivotally mounted in a valve housing for rotation about a transversal axis between an open and a closed position thereof. The noise attenuating device comprises a first series of elongated members extending from the upstream side of the disc above the transversal axis and a second series of generally diametrically opposed elongated members extending from the downstream side of the disc below the horizontal axis. Typically, the elongated members extend at 45 degree from the disc of the butterfly valve.

Abstract: A pulp mold comprises at least a cushion section for positioning and cushioning an article. In one embodiment of the invention, the cushion section is comprised of a plurality of pulp mold strips, and in other embodiments, the cushion section is formed by a number of successive pulp mold units, each unit defining a ridged surface on the pulp mold. A molding means for manufacturing the units comprises upper mold members and lower mold members, together defining the units, with each lower mold member being connected between two successive upper mold members. The upper mold members are used to form the ridged surfaces of the units for contact with an external packing material, such as a cardboard box or a carton, and the lower mold members, in addition to defining the units with the upper mold members, are used to form bottom surfaces each connecting two successive units. These bottom surfaces define an envelop plane completely fit with the contour of the article to be packaged.