Showing papers on "Paddle published in 2001"

Die paddle enhancement for exposed pad in semiconductor packaging

Abstract: A new design is provided for the die-paddle that is used as part of a package for packaging semiconductor devices. The new design of the invention creates a space between the ground ring of the die-paddle and the surface over which the ground paddle is mounted. The new design further comprises an S-shaped segment between the ground ring and the center of the die-paddle, the S-shaped segment provides stress relieve between the ground ring and the center of the die-paddle.

Micro paddle wheel pump for precise pumping, mixing, dispensing, and valving of blood and reagents

Abstract: An apparatus and method for making a microscopic paddle wheel coupled inductively by an external electromagnet and used for valving and active pumping so that the actual pumping mechanism is completely isolated from the electromagnetic driver. The paddle wheel is inexpensive to manufacture and disposable. A cartridge having a network of conduits and reservoirs contains several of such paddle wheels to transport blood and reagents. A point-of-care device houses the electromagnetic driving mechanism and is reused with successive cartridges since the paddle wheels are contained by the cartridge and do not contaminate the driving mechanism.

Toner supply with level sensor and meter and method of using the same

Abstract: A device and method for storing toner within an image forming apparatus having an upper reservoir and a lower reservoir. A sensor paddle is positioned within the lower reservoir for determining a toner level within the lower reservoir. The sensor paddle rotates within an angular displacement from a fall point to a toner rest point. The device and method further includes a drive gear for rotating the sensor paddle, and a cam mechanism positioned adjacent to the drive gear. The cam mechanism is connected to the sensor paddle and has a cam angular displacement relative to the drive gear about equal to the sensor paddle angular displacement. A pawl having at least one opening is mounted on at least one post extending axially outward from the drive gear and includes a boss positioned within the cam track. Upon a predetermined angular displacement of the sensor paddle, the boss moves along the cam track resulting in the pawl radially extending outward from the drive gear and contacting a toner supply mechanism for transferring toner from the upper reservoir to the lower reservoir.

Method for percutaneous implant of a paddle style lead

Abstract: A needle and method for introduction of a paddle style lead near a spinal column or other nervous system structures, central or peripheral, of a patient includes a body having a proximal end and a distal end, and a lumen with a continuous oblong cross section. The distal end of the body has an introducer portion where the top side of the introducer has an orifice to allow for protrusion of the paddle style lead from the lumen into the spinal column area or into or near other nervous system structures. The needle has a hub affixed to the proximal end of the body which is adapted to receive a stylet. The needle may also have a stylet that is inserted within the lumen. The introducer of the needle has a curvature extending from the bottom side toward the top side at the distal end and guides the introduction of the paddle style lead near the spinal column or other nervous system structures.

Magic Paddle: A Tangible Augmented Reality Interface for Object Manipulation

Abstract: In this demonstration we show a computer vision based Augmented Reality system called Magic Paddle. This system has been designed to support a Tangible Augmented Reality approach in which lessons from Tangible User Interface design are applied to the design of AR interfaces. Magic Paddle is an AR interaction system including virtual object manipulations in tabletop environment. User can construct a 3D scene by manipulating virtual objects with a physical paddle as if he manipulates real objects.

Sampling device with snap-off head and method of use

Abstract: A sampling device (10) is provided having an elongate handle (12) with a distal paddle head (14) An absorbent material (20) is placed about the paddle head, and a score line (18) is located along the handle at a location adjacent the padded head A method of use is provided in which the paddle head (14) and absorbent material (20) are inserted into a flexible wall sample bag The head is then grasped from the exterior of the sample bag so as to avoid direct contact with the absorbent material The handle is then broken away from the head at the handle score line The absorbent material (20) is preferably sized to encompass the exposed score line after the paddle head (14) is snapped from the handle (12)

Die paddle clamping method for wire bond enhancement

Abstract: A leadframe configuration for a semiconductor device has a die attach paddle with paddle support bars. In addition, clamp tabs extend outwardly from lesser supported locations of the paddle to underlie a conventional lead clamp. The clamp tabs are formed as an integral part of the paddle. Normal clamping during die attach and wire bonding operations prevents paddle movement and enhances integrity of the die bond and wire bonds.

Push lumbar support with flexible pressure surface

Abstract: An ergonomic weight support device for a seat has a flexible pressure plate attached to an extending paddle for lumbar support. The paddle extends from a housing having a channel into which the paddle may be retracted for the lumbar support to be flat, or from which the paddle may be extended for lumbar support. The flexible pressure plate distributes lumbar supporting pressure across a greater area for comfort.

Unitized back plate and lumbar support

Abstract: A unitized back plate and lumbar support device for a seat including a back plate, a housing with a channel, which housing is fixedly attached to the back plate, and an extending paddle. The extending paddle has a free end with a pressure surface, the surface being a load bearing element proximal to a seat occupant, and the extending paddle has an encapsulated end in extendible communication with the channel in the housing. An actuator mediates travel of the extending paddle between a substantially retracted position and an extended position.

A microelectronic workpiece processing tool including a processing reactor having a paddle assembly for agitation of a processing fluid proximate to the workpiece

Abstract: An integrated tool is provided including at least one workpiece processing station having a paddle assembly. In accordance with another independent aspect of the present invention, the workpiece processing station is adapted for adjusting the level of the processing fluid relative to a workpiece, wherein the portion of the workpiece to be processed and possibly the paddle is selectively immersed within the processing fluid. In accordance with a further independent aspect of the present invention, a paddle is provided for use proximate to a workpiece in a workpiece processing station. The paddle includes one or more sets of delivery ports and one or more sets of fluid recovery ports. In at least one embodiment, the paddle provides for agitation of a processing fluid proximate to the surface of the workpiece. In at least another embodiment, the paddle provides for the delivery and/or recovery of one or more fluids to the portion of the workpiece to be processed. One aspect of the present invention enables the fluids supplied to the workpiece by the paddle to be limited to the space located between the workpiece and the paddle, thus avoiding mixing of these fluids with the processing fluid located within the bowl assembly not supplied by the paddle.

Tenser for performing a knee replacement operation

Abstract: Tenser (1) has a first movable member (6) with the paddle (7) mounted to body (2). Said body also has a handle (3) and a fixed paddle (4). An operating lever (8) mounted in the body (2) is coupled to member (6) to move paddle (7) relative to fixed paddle (4). A support member (9) is lockably adjustably mounted to the body (2) for movement perpendicular to the fixed paddle (4). A second movable member (11) lockably adjustably mounted to the support member (9) for movement in a direction substantially perpendicular to the fixed paddle (4) has a slot (12) for passage of a surgical saw (88) for making an anterior cut (115) during resection of a femur (108) in preparation for implantation of a femoral component (61). A third movable member (14) is slidably mounted to the body (2) for movement in a direction substantially perpendicular of the fixed paddle (4) and has guide means (15, 16) for passage of an intramedullary member (83) for insertion in a prepared intramedullary bore of the (108).

Paddle support for a vessel

Abstract: A paddle support assists in rowing a vessel. The paddle is retained in the upper portion of a support that has a base section that rests, preferably unattached or at least readily releasably attached on the floor of a vessel. The support allows the paddle to be freely manipulated unencumbered by attachments to the vessel. The paddle support may be attached to webbing suspended across an opening in the vessel so that a base of the support is attached near the center of the webbing. The paddle support may also be attached to a harness suspended across an opening in the vessel so that the upright support is attached near the center of the harness. The use of the webbing or harness facilitates use of the support with a watertight skirt or covering stretched over the opening of a vessel.

Array of scintillator counters for PHOBOS at RHIC

Abstract: An array of scintillator counters (“paddle counters”) for the measurement of number and energy of charged particles in heavy-ion gold–gold collisions for the PHOBOS experiment at RHIC is described. These simple, versatile, and highly efficient detectors provide a low bias and an easily understood level zero trigger. The paddle counters can also be used to select and measure event centrality. The information from the paddle counters used for triggering and event selection included the total signal height (proportional to the number of particles), the timing information of the hits, and the number of scintillators fired. The general characteristics of the paddle counters, their design parameters, and performance during the first run at RHIC are presented in this paper.

System for parallel processing of workpieces

Abstract: A dual paddle end effector robot (108) is disclosed which is capable of parallel processing of workpieces. The end effector (108) includes a lower paddle (250) rotatably coupled to an end of the distal link (106), and an upper paddle (252) rotatably coupled to the lower paddle (250). The lower paddle supports a drive assembly capable of rotating the upper paddle (252) with respect to the lower paddle (250). In one embodiment of the present invention, the dual paddle end effector robot (108) may be used within a wafer sorter to perform parallel processing of workpieces on a pair of aligners within a wafer sorter. In such an embodiment, the robot (100) may first acquire a pair of workpieces from adjacent shelves within the workpiece cassette. After withdrawing from the cassette, the respective paddles on the end effector (108) may fan out and transfer the wafers to the chucks of the respective aligners. After processing of the workpieces on the aligners is complete, the fanned end effector paddles may reacquire the workpieces, the upper paddle (252) may return to its home position located directly over the lower paddle (250), and then return the processed workpieces to their original cassette or to a new cassette. Parallel processing of workpieces in this fashion provides significantly greater throughput than in conventional wafer sorter systems. Throughput may be improved still further by providing buffering locations for the workpieces at the respective aligners.

Surface mount package with integral electro-static charge dissipating ring using lead frame as ESD device

Abstract: In a packaged integrated circuit, electrostatic discharge protection is provided by portions of a lead frame on which the integrated circuit is mounted. The lead frame includes a die paddle on which an integrated circuit die is mounted, with plastic or epoxy material encapsulating exposed surfaces of the integrated circuit die except for a sensing surface, and supporting pins or leads formed from the lead frame. Portions of the lead frame extending from the die paddle are folded around sides of the encapsulated integrated circuit die and over, or adjacent to and level with, a peripheral upper surface of the encapsulated integrated circuit die to form an electrostatic discharge ring. The lead frame portions folded around the integrated circuit package are connected to ground through a ground pin, so that charge on a human finger touching the electrostatic discharge ring is dissipated to ground before the finger contacts a sensing surface of the integrated circuit. The portions of the lead frame which are folded around the encapsulated integrated circuit die may extend only around sides or side regions of the integrated circuit package not including pins or leads or, alternatively, may extend around all sides of the integrated circuit package and have openings where side regions of the integrated circuit package includes pins or leads.

Extended-life toner cartridge for a laser printer

Abstract: An extended life-toner cartridge provides a set of required agitator paddle movement signals that fall within the expected parameters of the print engine controller—not-withstanding a higher toner level that would normally alter the paddle movement signals beyond acceptable timing ranges. The cartridge includes a toner tank agitator paddle assembly with a paddle movement reporting mechanism that particularly compensates for the larger volume of toner in the tank. In addition, the toner tank can include an enlarged tank extension for increasing reservoir capacity.

Compression paddle mixer

Abstract: A compression-paddle mixer has a compression paddle (1) that includes paddle blades (3) juxtaposed colinearly to a paddle rod (5). The paddle blades include one or more sets (2) of two paddle blades having channel-funneled orientation on paddle spokes (4) that are extended radially from the paddle rod. The channel-funneled orientation includes channel-funnel inlets (9) having inlet areas between leading-edges of sets of the paddle blades that are larger than inlet areas of channel-funnel outlets (11) between trailing-edges of the sets of the paddle blades in a direction of rotation of the paddle blades transmitted by rotation of the paddle rod. The compression paddle can be sized, shaped and structured for use with select sizes, shapes and structures of mix containers for select mixing applications.

Adjustable urging force system for stacker paddle

Abstract: A paddle urging system for use in a stacking bin having a constant force spring to provide an urging force to a paddle for supporting a stack of mailpieces. As mailpieces are accumulated into the stack, they push the stack against the paddle. A brake/clutch system is used to provide an additional drag to the paddle to resist against this movement of the paddle. The brake/clutch system is adjustable so that heavy mailpieces are supported more effectively, whereas lightweight mailpieces encounter less resistant force when they are accumulated into the stack.

Air conditioner cooling apparatus

Abstract: An air conditioner cooling apparatus which is designed to be used in conjunction with a cabinet type air conditioner that has an air exhaust portal which has an exhaust airflow,path and a length of condenser coils. The cooling apparatus comprises a paddle which is to be placed within the exhaust airflow path and upon operation of the air conditioner, the paddle is to be pivoted from a crosswise position relative to the airflow path to an inclined position relative to the airflow path. The pivoting of the paddle connects by a linkage assembly to a control arm with this control arm to be raised from a lower position to an upper position when the air conditioner is activated. The control arm connects to a water supply valve which is opened when the air conditioner is turned on with water to be caused to flow through the valve to a series of discharge nozzles with this water to be dispensed onto the condenser coils of the air conditioner.

Dynamic model of aircraft ground handling

Abstract: The model of aircraft's ground motion is “operational”,where the airframe has six degrees of freedom. As long as the pilot's command, the paddle's displacement, for example, is given, the model can find out the motion of both the airframe and nose wheel, and the interaction between them. The non sliding model of tires is applied but no assumption of airframe's motion is adopted. The turning angle of the nose wheel is not given in advance. The functions of tire force versus nose wheel's turning angle are no longer needed while the tire rolling coefficients are employed. There are assumptions about aircraft's ground motion; one of those widely used is “the center of simultaneous turning of the airframe is the same as the center of curvature of the mass center's track”. The research in this paper reveals that this is true only when the aircraft is in a steady state turning.

Hydrodynamik kompendialer Lösungsgeschwindigkeits-Testapparaturen Paddle und Basket

Abstract: The objective of the present study was to examine the hydrodynamics of compendial in vitro dissolution testers. Hydrodynamics of two compendial dissolution testers (paddle and basket) were directly characterized by means of an ultrasound pulse echo method. The fluid velocities within the dissolution vessels correlated well and in a linear manner with the rotational speed (rpm) of the paddle and the basket. On the basis of this correlation it is possible to calculate the linear velocity in the dissolution medium at any rotational speed. Fluid velocities using the basket method were determined to range between 0.3 and 5 cm/s (25 to 200 rpm) and for the paddle method to range between 1.8 and 37 cm/s. The empirically determined fluid velocities can be used to predict the in vitro dissolution rates of pure drugs in paddle and basket tests on an a priori basis.

Deep well air hockey game

Abstract: An air hockey game including a table having an upper game surface, a paddle adapted to rest on said game surface, said paddle having a height measured by the distance that the paddle extends above the game surface, and a rail surrounding the game surface, said rail having a depth measured by the distance that the rail extends above the game surface, and wherein the depth of the rail is approximately equal to the height of the paddle.

Ergonomic paddle grip

Abstract: The present invention relates to an ergonomic kayak paddle. The paddle has a shaft with a longitudinal axis and with a first end and second end. The shaft is adjustable between a first length and a second length. At least one grip is on the shaft at a point intermediate between the first and second ends of the shaft. The grip is contoured to a user's hand, but does not provide profiles for the user's fingers. The grip may be angled outwardly from the longitudinal axis of the shaft at an angle ranging from about 10° to about 30°. An adjuster positioned within the grip allows the angle of the grip to the handle to be adjusted.

High-efficiency double-shaft stirring mixer

Abstract: The utility model relates to a stirring and mixing machine. The utility model is used for various solids or liquid materials of chemical products, foods, drugs, fodders, minerals, concrete, etc. The utility model uses a double-shaft structure which is sheathed by a solid shaft and a hollow shaft. A machine shell forms an inverse triangle shape. The interior of the machine shell is provided with a forward and backward stirring paddle. The machine shell is also provided with a material feeding hopper, a material discharge opening, etc. The forward and backward stirring paddle drives a forward and backward rotation shaft to rotate by an electric motor through a gear wheel. The forward and backward rotation shaft drives a hanging arm and the stirring paddle. The utility model has the advantages of fast mixing speed, uniformity, wide application, convenient operation, little energy consumption, convenient maintenance, and easy washing after used.

Interactive board game with a tangible reward

Abstract: The non-mechanical, manually operated combination board game and attached dispenser of gumballs or play balls which is played with paddle control rods uniquely placed over the top of the game, is designed for two or more players to simultaneously compete for the play ball prize which is emitted from the enclosed casing after one of the players successfully strikes the game ball into his goal, usually a hole at the opposite end of the play board.

Process unit with cleaner and image forming apparatus comprising the same

Abstract: An image forming apparatus includes a recording paper conveyor, a photosensitive drum, a charger, an exposure, a developer with toner, a transfer, and a cleaner A process unit has the photosensitive drum and the cleaner in which a blade scrapes a residual toner from the drum, a paddle rotates to move the toner from the drum, and a scraper scraping the toner carried by the arm by its free end which is disposed radially outwardly and near to a rotation locus drawn by a radially directional outer end of an arm of the paddle during a rotation of the paddle

Rotary paddle bin monitor

Abstract: A rotary paddle bin monitor for indicating a level of dry bulk material in a bin. In normal operation, a rotary motor rotates a shaft and paddle. A spring mechanism keeps the motor in a first angular position when the paddle is rotating freely. However, when the paddle engages the dry bulk material, the created torque overcomes the spring mechanism and causes the rotary motor to rotate. A first magnetic detector (e.g. a hall effect detector) mounted inside the housing senses a first magnet marker fixed to the rotary motor via the motor support plate to provide an indication when the rotary motor has rotated due to the sufficient presence of dry bulk material. A second magnetic detector mounted inside the housing senses a second magnet marker fixed to the shaft to provide an indication that the shaft is rotating at a proper speed (and indicate the direction of the rotation as well).

Ink jet with rotary actuator

Abstract: An ink jet printer utilizing a rotary impeller mechanism to eject ink drops is described. The nozzle chamber includes a number of radial paddle wheel vanes; and a number of fixed paddles. Upon rotation of the paddle wheel, ink within the paddle chambers is pressurized, causing ink to be ejected from the ink ejection port. The ink ejection port is located above a pivot point of the paddle wheel and includes a wall which is located substantially on the circumference of the paddle wheel. The rotation of the paddle wheel is controlled by a thermal actuator which comprises an internal electrically resistive element and an external jacket around the resistive element, the jacket having a high coefficient of thermal expansion and being constructed from polytetrafluoroethylene. The thermal actuator undergoes circumferential expansion relative to the paddle wheel.

Cover for vehicle control switch

Abstract: A cover is provided for a control switch in a vehicle that is movable between open and closed positions. In the cover open position, the switch paddle is freely accessible. In the cover closed position, the switch paddle is partially covered to limit access to the paddle and alert the operator to thereby avoid unintended actuation of the switch. In the closed position, the paddle is still accessible if needed to actuate the switch in an emergency without first opening the cover.