Showing papers on "Paddle published in 1998"

Single Paddle having a semiconductor device and a passive electronic component

Abstract: A semiconductor package and a corresponding method of forming this package are provided. The semiconductor package includes a paddle and a semiconductor device mounted on the paddle. A passive electronic component is also mounted on the paddle and spaced apart from the semiconductor device. Interconnects provide a conductive path from a bonding pad of the semiconductor device to a bonding pad of the passive electronic component such that the passive electronic component and semiconductor device are operatively connected.

Chip scale package with heat spreader and method of manufacture

Abstract: A dense semiconductor flip-chip device is provided with a heat sink/spreading/dissipating member which is formed as a paddle of a metallic paddle frame in a strip of paddle frames. Dice are bonded to the paddles by e.g. conventional die attach methods, enabling bump attachment and testing to be conducted before detachment from the paddle frame strip.

Dual nozzle single horizontal fulcrum actuator ink jet printing mechanism

Abstract: An ink jet printing apparatus for ejecting fluids from a nozzle chamber has at least two fluid ejection apertures defined in the walls of the chamber; a moveable paddle vane located in a plane adjacent the rim of a first one of the fluid ejection apertures; and an actuator mechanism attached to the moveable paddle vane and adapted to move the paddle vane in a first direction so as to cause the ejection of fluid drops out of the first fluid ejection aperture and to further move the paddle vane in a second alternative direction so as to cause the ejection of fluid drops out of a second fluid ejection aperture. The apparatus can include a baffle located between the first and second fluid ejection apertures such that the paddle vane moving in the first direction causes an increase in pressure of the fluid in the volume adjacent the first aperture and a simultaneous decrease in pressure of the fluid in the volume adjacent the second aperture. Further, the paddle vane moving in the second direction can cause an increase in pressure of the fluid in the volume adjacent the second aperture and a simultaneous decrease in pressure of the fluid in the volume adjacent the first aperture.

Dual nozzle single horizontal fulcrum actuator inkjet

Abstract: An ink jet printhead includes a nozzle chamber having at least two fluid ejection apertures defined in a roof of the chamber; a moveable paddle vane located in a region of a first one of the fluid ejection apertures; an actuator mechanism attached to the moveable paddle vane and adapted to move the paddle vane in a first direction so as to cause the ejection of fluid drops out of the first fluid ejection aperture and to further move the paddle vane in a second, alternative direction so as to cause the ejection of fluid drops out of a second fluid ejection aperture. A method of manufacture of such a printhead comprises initially providing a silicon wafer having a circuitry wafer layer including electrical circuitry necessary for the operation of the actuator mechanism on demand. A trough is etched in the wafer to provide for an ink supply channel through a portion of the wafer. The nozzle chamber, the actuator mechanism and the paddle vane within the nozzle chamber are created on the silicon wafer by means of depositing and etching a series of sacrificial layers to form a supporting structure for the nozzle chamber, the actuator mechanism and the paddle vane, in addition to depositing and suitably etching a series of materials for forming the nozzle chamber including a pair of fluid ejection apertures in a roof of the nozzle chamber, the actuator mechanism and the paddle vane. An ink inlet is etched in the wafer, the inlet being in communication with the nozzle chamber via the ink supply channel extending through the wafer. Any remaining sacrificial layers are etched away so as to release the actuator mechanism and the paddle vane such that the paddle vane is displaceable relative to the fluid ejection apertures for effecting ink ejection from one of the apertures at a time on demand.

Single bend actuator cupped paddle ink jet printing mechanism

Abstract: An ink jet printing nozzle arrangement is disclosed including an ink chamber having an ink ejection nozzle in one wall thereof for the ejection of ink from the ink chamber; a moveable paddle vane located within the ink chamber; an actuator means adapted to move the paddle vane so as to cause ink within the ink chamber to be ejected from the ink ejection nozzle; wherein the paddle vane includes a concave surface in the area adjacent the ink ejection nozzle. Preferably, the paddle vane includes a cup shaped surface in the area adjacent the ink ejection nozzle. The nozzle arrangement can be formed utilizing normal micro-electro mechanical construction techniques and the concave surface can be formed as the result of the deposition of a film over a pit. The actuator means can include an actuating portion located externally to the nozzle chamber and operational in an external ambient atmosphere of the arrangement. The ink chamber can further include a slot defined in a wall thereof such that the actuator means communicates with the moveable paddle vane through the slot. The actuator means can comprise a thermal actuator which includes a conductive heater element having a high bend efficiency such that when an electric current is passed through the conductive heater element, the heater element undergoes thermal expansion causing the actuator means to move the paddle towards the ink ejection nozzle. Preferably, the external surfaces of the slot are profiled so as to minimize any wicking of the ink out of the slot. The profile can include a surface having a protruding rim around the slot and the actuator means can be shaped so as to minimize wicking of ink along the actuator means.

External defibrillator electrode apparatus

Abstract: A defibrillator paddle set includes first and second paddles connected together with a Y-shaped cord set. The legs of the cord set are attached to the forward ends of each paddle, adjacent a defibrillator "firing" button. Improved manufacturing techniques and enhanced operator safety are realized.

Thermally enhanced lead-under-paddle I.C. leadframe

Abstract: A "lead-under-paddle" (LUP) leadframe employs a thermally conductive paddle/heat sink, the top side of which is adhered to an I.C. die with a thermally conductive adhesive. The inner portions of an I.C. package's leads extend along and are attached to the bottom side of the paddle with a thermally conductive and electrically isolating adhesive. Heat generated by the die is conducted to the leads and out of the package via the paddle/heat sink. The leads are in close contact with the paddle and die, reducing the leadframe's thermal resistance, increasing the amount of power that can be consumed by the die, and enabling a standard I.C. package to accommodate a paddle and die having larger respective surface areas.

Dual chamber single actuator ink jet printing mechanism

Abstract: An apparatus for ejecting fluids from a nozzle chamber is disclosed including a nozzle chamber having at least two fluid ejection apertures defined in the walls of the chamber; a moveable paddle vane located between the fluid ejection apertures; an actuator mechanism attached to the moveable paddle vane and adapted to move the paddle vane in a first direction so as to cause the ejection of fluid drops out of a first fluid ejection aperture and to further move the paddle vane in a second alternative direction so as to cause the ejection of fluid drops out of a second fluid ejection aperture. The actuator can comprise a thermal actuator having at least two heater elements with a first of the elements being actuated to cause the paddle vane to move in a first direction and a second heater element being actuated to cause the paddle vane to move in a second direction. The heater elements preferably have a high bend efficiency. The paddle vane and the actuator can be joined at a fulcrum pivot point, the fulcrum pivot point having a thinned portion of the nozzle chamber wall. The actuator can include one end fixed to a substrate and a second end containing a bifurcated tongue having two leaf portions on each end of the bifurcated tongue the leaf portions interconnecting to a corresponding side of the paddle with the tongue such that, upon actuation of the actuator, one of the leaf portions pulls on the paddle end.

Multi-axis transfer arm with an extensible tracked carriage

Abstract: A transfer arm assembly for transferring wafers between a load-lock chamber or a transfer chamber and processing chamber. The wafer is selectively held on the end of a paddle. Linear horizontal motion is provided by a drawer-slide mechanism including a base, a carriage, and the paddle. Slides are mounted on the base and on the carriage. Wheels mounted on the carriage slidably engage the base slides and support the carriage on the base, and wheels mounted on the paddle slidably engage the carriage slides and support the paddle on the carriage. Thereby, the paddle may be projected a distance greater than the lateral extent of the base or of the vacuum chamber accommodating the base and its supported components in their retracted positions. A single motor mounted on the carriage can provide the two relative motions among the base, carriage, and paddle by means of two belt mechanisms wrapped around two capstans attached to the motor shaft. Additional degrees of motion are provided by a rotating turntable and by a lifting four-bar mechanism or cam follower.

Magnet fixed structure for compressor motor

Abstract: A magnet fixed structure for a compressor motor, which includes a cylindrical magnet paddle in which a plurality of magnet insertion holes are formed along a circumference thereof or a cylindrical magnet paddle alone, a plurality of magnets inserted into the magnet insertion holes of the magnet paddle or fixed to the magnet paddle, and a magnet fixing ring or a varnish-type molding member for fixing the magnets, effectively fixes the magnets to the magnet paddle, for thereby improving reliability and efficiency of the compressor motor as well as mass-productivity thereof.

Charging lid structure for electric vehicle

Abstract: PROBLEM TO BE SOLVED: To obtain a charger which is hard to be burglarized by providing a charging lid which is opened/closed freely at the paddle inserting part of a charging port, such that the charging lid can be closed in a state where the paddle of a charger is inserted into the paddle inserting exposed by opening the charging lid. SOLUTION: A piston link 10 is disposed at the lower part of the paddle inserting part 4 of a charging port 3, and a charging lid is opened by means of a spring at normal times. A locking mechanism is formed by providing a lock pin 19 engaged with a striker 18 located at the lower end of the charging lid 6 on the inside thereof. A lock 16 and the lock pin 19 are connected with an actuator 21 and are movable in the disengaging direction. Since the charging lid 6 is locked by the lock pin 19 and the striker 18, a paddle 8 cannot be drawn out, and the charger will not be burglarized.

Truck box with improved operating rod

Abstract: A truck box is disclosed comprising a front wall carrying a pair of spaced paddle latches and being formed with a channel extending at least between the paddle latches, a back wall, a bottom wall, opposed end walls and a top lid pivotally mounted to the back wall, all of which are interconnected to define a hollow interior. The operating rod has a first end section connected to one paddle latch, a second end section connected to the other paddle latch, and, an offset center section which is mounted by at least one rod guide within the channel formed in the front wall. The channel substantially encloses the center section of the operating rod to protect it from contact with items loaded into and unloaded from the box interior, and the rod guide(s) support the center section to prevent vibration or other contact with the front wall during operation of the vehicle within which the truck box is mounted.

In-line, field adjustable irrigation flow indicator for high, normal and low flow rates

Abstract: An in-line flow meter (10) for use in drip irrigation systems which provides a field adjustable, infinitely variable visual flow indication of both high and low flow rates above and below a field adjustable normal flow rate is provided by means of a drag paddle (16) rotatably disposed in the flow in the fluid conduit (12). The paddle (16) carries a magnet (34) and an indicator lever (38) exterior of the conduit (12) carries a second magnet (46) which interacts with the magnet on the paddle (16). The paddle (16), which hangs downwardly into the flow, rotates upwardly and downwardly depending on whether the flow increases or decreases. The exterior indicator lever (38) similarly rotates to mimic or telegraph the angular orientation of the paddle (16) through the interaction of the two magnets (34, 46). An adjustable counterweight (50) is provided on or as the exterior indicator lever (38) and can be positioned so that the indicator lever (38) is approximately level or aligned with a fixed shield when the predetermined flow is achieved.

Single bend actuator cupped paddle inkjet printing device

Abstract: An ink jet printing nozzle arrangement includes an ink chamber having an ink ejection nozzle in one wall thereof for the ejection of ink from the ink chamber. A moveable paddle vane is located within the ink chamber, the paddle vane including a concave surface in the area adjacent the ink ejection nozzle. An actuator is adapted to move the paddle vane so as to cause ink within the ink chamber to be ejected from the ink ejection nozzle. A method of manufacture of such an ink jet nozzle arrangement comprises the steps of forming an etched pit in the wafer and depositing and etching a series of layers on the wafer so as to form at least one inkjet nozzle arrangement, the layers including at least one paddle vane formation layer being deposited over portions of the etched pit resulting in the formation of the concave surface of the paddle vane.

Dual nozzle single horizontal actuator ink jet printing mechanism

Abstract: A nozzle arrangement for a printhead comprises nozzle chamber walls that define a nozzle chamber having at least two fluid ejection ports. A moveable paddle vane is located in a plane adjacent a rim of a first one of the fluid ejection ports. An actuator mechanism is attached to the moveable paddle vane and is adapted to move the paddle vane in a first direction so as to cause the ejection of fluid drops out of the first fluid ejection port and to further move the paddle vane in a second direction so as to cause the ejection of fluid drops out of a second fluid ejection port. Preferably, the nozzle arrangement further comprises a baffle located between the first and second fluid ejection ports so that the paddle vane moving in the first direction causes an increase in pressure of the fluid in the volume adjacent the first port and a simultaneous decrease in pressure of the fluid in the one volume adjacent the second port first one of the fluid ejection apertures such that, while ink is ejected from the second fluid ejection aperture, the meniscus of the first fluid ejection aperture and the at least one smaller aperture are interconnected within the nozzle chamber. Preferably, each aperture can include a ribbed rim around the outer surface thereof.

Quad flat pack integrated circuit package

Abstract: A quad flat pack (QFP) integrated circuit package that is modified to include a tab that increases the thermal efficiency of the package. The package contains an integrated circuit that is mounted to a die paddle of a lead frame. A plurality of leads extend from a first side of the die paddle. Placing all of the leads on one side of the package minimizes the difference in signal length between the leads. The tab extends from a second side of the die paddle. Both the leads and the tab extend from a plastic housing which encapsulates the integrated circuit. The tab provides a large conductive area which increases the heat transfer rate from the integrated circuit to the ambient, or an external thermal element.

Agitator for a horizontal polymerization reactor having contiguous paddle stations with paddles and sub-stations with sub-station paddles

Abstract: Improved apparatus for mechanically stirring a quench-cooled subfluidized particulate bed of polymerized monomer lowers lumping of polymer particles by using substantially contiguous paddle stations disposed along the drive shaft within the reactor in combination with a plurality of sub-stations in at least one paddle station class, each sub-station having a width along the shaft of no more than 50 percent of the total width of the paddle station, and sub-station paddles attached to the shaft at each sub-station so as to sweep through the particulate bed. In some embodiments, a first class of stations is, advantageously, disposed within the reactor along a portion of the drive shaft in repeating groups of at least two stations and a second class of stations with sub-stations is disposed within the reactor along another portion of the drive shaft, preferably in repeating groups of at least one more than the number of stations in the repeating group of the first class, to further reduce lumping of polymer particles.

Paddle board with extended flexible leads

Abstract: A paddle board with flexible extended leads is provided. The paddle board includes a chassis and a flexible lead portion. The flexible lead portion has wire traces disposed therein for receiving a plurality of wires from a parametric test head. The paddle board may be connected to a socket of a testing assembly for testing the performance of a batch of storage media. The paddle board reduces the amount of damage or breakage to the wires extending from the testing head.

Testing the validity of the paddle method for the kinesthetic and visual-kinesthetic perception of inclination

Abstract: We tested the validity of the paddle method for measuring both the kinesthetic and visual-kinesthetic perception of inclination. In three conditions, subjects performed three different tasks: (1) rotating a manual paddle to a set of verbally given inclinations (blindfolded subjects), (2) rotating a manual paddle to the same set of verbally given inclinations after specific kinesthetic training (blindfolded subjects), and (3) rotating the paddle to a set of fixed visual inclinations after the kinesthetic training. The results showed a high degree of accuracy and precision in the second and third task but not in the first one. When subjects were asked to rotate a manual paddle to a set of verbally given inclinations, they used three main anchors (0°, 45°, 90°). Furthermore, the paddle method is biased by a kinesthetic deficiency, namely a rotational problem of the wrist that can be corrected by means of specific training.

Automatic wafer boat loading

Abstract: A system for automatic loading of wafer boats onto a cantilever paddle for insertion of the wafer boats into a furnace tube includes an end effector carriage moving on a track and supporting an end effector having spaced, parallel pads to engage opposed outer side portions of a wafer boat. The end effector receives a wafer boat from a robotic arm of an elevator. The robotic arm moves transversely relative to the track to position the wafer boat over the track on which the paddle carriage moves. The end effector carriage moves the end effector pads under the wafer boat, lifts it from a pair of elevator tines, moves the wafer boat over a desired part of the paddle, and lowers the wafer boat onto the paddle. The end effector carriage then returns the end effector to an initial location. The elevator and end effector main the wafer boat at a slight tilt as it is shifted from a wafer boat queue to the cantilever paddle so as to prevent rattling of wafers held in slots of the wafer boat due to vibration of the system.

Product feeding and cooking apparatus

Abstract: Apparatus for feeding and cooking raw product, such as shellfish and the like, in a continuous process. A preferred version of the apparatus includes a feed tank with raw product immersed in a bath. A conveyor follows an inclined path starting in the feed tank and exiting the surface of the bath to convey raw product out of the tank and through a cooking chamber. A feed control mechanism is provided to allow for accurate setting of product flow. The mechanism includes a rocking paddle extending just above the conveying surface of the conveyor. The paddle is linked to a rotary drive train by a linkage consisting of two pivotally attached arms. Rotation of the drive train causes the paddle to rock and deposit product on the conveyor during each stroke. The drive train is mounted on a slidable support that is pivotally attached to an adjustment rod. The other end of the adjustment rod includes an adjustment handle and a micrometer-style adjustment with clearly visible indicia for adjusting product flow. As the adjustment rod is rotated, the drive train translates and changes the reference angle between the two arms of the linkage, which moves the paddle closer or farther from the conveying surface to adjust the amount of raw product deposited on the belt during each stroke. A cover over the feed tank provides a seal to prevent cooking steam from escaping the cooking chamber through the feed tank.

Method of manufacture of an image creation apparatus

Abstract: An ink jet printer includes a trough having side walls and an exposed roof, the trough being substantially filled with fluid during operation. A paddle vane is located within the trough and offset from one wall when the paddle vane is in a quiescent position. An actuation mechanism is attached to the paddle vane such that, upon activation of the actuation mechanism, the paddle vane is caused to move towards the wall, resulting in an increase in pressure in the fluid between the wall and the paddle vane. This results in a consequential ejection of fluid via the exposed roof. A method of manufacture of the ink jet printer comprises the steps of initially providing a silicon wafer having a circuitry wafer layer including electrical circuitry necessary for the operation of the thermal actuation mechanisms on demand. The trough is etched in the surface of the wafer. The actuation mechanism and the paddle vane are created on the silicon wafer by means of depositing and etching a series of sacrificial layers to form a supporting structure for the actuation mechanism and the paddle vane, in addition to depositing and suitably etching a series of materials for forming the actuation mechanism and the paddle vane. An ink supply channel interconnecting the trough with an ink supply is etched through the wafer. Any remaining sacrificial layers are etched away so as to release the actuation mechanism and the paddle vane for operation.

Traffic directing wand

Abstract: A traffic directing wand for directing traffic in lighted conditions such as in the day and in low light conditions such as in the night. The traffic directing wand includes a paddle and a handle. The paddle has first and second faces, and an outer perimeter comprising top and bottom edges, and a pair of side edges extending between the top and bottom edges of the paddle. The handle has upper and lower ends, and an exterior side. The bottom edge of the paddle is coupled to the upper end of the handle. The first face of the paddle has an orange colored surface for aiding the visibility of the first face of the paddle. The second face of the paddle has a phosphorescent surface for aiding the visibility of the second face of the paddle in low light conditions.

Self-illuminating ball paddle

Abstract: A ball and paddle toy for generating an illumination effect when activated. The toy includes a paddle having a head portion and a handle portion configured for grasping by a user. A switch operable when a force exceeding a threshold force is applied thereto is connected to the paddle head portion. An elastic cord is connected at one end to the switch and at another end to a ball. An illuminating element is connected to the switch and is activated when the elastic cord applies a force exceeding the threshold force to the switch. When in use, the paddle is used to hit the ball, which causes the cord stretch and apply a force to the switch for activating the illuminating element.

Numerical and Experimental Investigation of Microchip Encapsulation

Abstract: A numerical simulation of moving boundaries in a two-dimensional, inertia-free, incompressible flow with shear-thinning viscosity is presented. A control-volume approach with fixed finite-element mesh is used for predicting the fluid-front advancement. The experimental results for nine different configurations of upper- and lower-cavity thickness in a flow domain similar to the mold cavity used for microchip encapsulation are reported. The predicted fluid-front advancement and pressure are found to be in good agreement with the corresponding experimental measurements. The difference in pressure on two sides of the paddle is used to develop an analytical model for predicting the paddle shift during microchip encapsulation.

Machine for removing deckboards from pallets

Abstract: A machine for removing deckboards from pallets includes a table assembly that establishes a working surface upon which a pallet can be placed and a pair of spaced, parallel, elongate frame members that are spaced from the working surface. The frame members are spaced apart a distance greater than the width of a stringer and are adapted to fit into the spaces between adjacent stringers. A paddle is included as part of each of the frame members, the paddle being movable from a retracted position where the paddle is disposed within the frame member and an extended position where the paddle moves outside the frame member and contacts a deckboard so as to move it relative to the stringers. A hydraulic cylinder moves the paddles between the retracted and extended positions. Preferably, the paddles are hinged for movement such that the deckboards are gradually pried from the stringers in order to minimize damage to the deckboards or stringers as the deckboards are removed. The machine includes movable hold-down bars that prevent a pallet from moving during a deckboard removal operation.

Composite paddle, for trough type solids mixer, has stiffened core and resilient overlay

Abstract: The paddle has a stiffened core section (42) with a 'softer', abrasion resisting overlay (44) covering the trailing edge and the working face. Paddle mixer having at least one shaft (14) within a trough (10) formed with at least one approximately cylindrical surface (26) and a mixing paddle (18) rotatable about a trough axis (A-A). The paddle tip (28) runs near to the trough wall, at an inclination alpha to the axial trough surface direction (M). The paddle comprises a working face (38), a side face (40), leading edge (32) and a trailing edge (34), has a stiffened core section (42) with a 'softer', abrasion resisting overlay (44) covering the trailing edge and the working face. An Independent claim is also included for a composite paddle construction.

Mortar mixer with powered dump control

Abstract: A powered mechanism is described for controlling the dumping of mortar from a tilting mortar mixing drum. The powered mechanism is highly mechanically advantaged, so that a single operator has precise control of the dumping procedure. A mortar mixing drum has a rotatable paddle shaft and at least one paddle attached to it. The mortar mixing drum is operative between a home, mixing position, and a mortar dumping position. A drive mechanism is connected to the rotatable paddle shaft for rotatively driving the shaft and the paddle attached to it. A transmission mechanism has a ring gear attached to the mortar mixing drum and a pinion gear in rotative contact with the ring gear. The transmission mechanism also has a drive belt and a drive pulley rotatively attached to the rotatable paddle shaft. A hand-operated lever is engageable with the drive belt of the transmission mechanism to engage the drive belt for driving the transmission pulley, which causes tilting of the mixing drum.