Showing papers on "Paddle published in 2004"

Field Steerable Electrical Stimulation Paddle, Lead System, and Medical Device Incorporating the Same

Abstract: An implantable electrode paddle is adapted to receive an electrical signal from a medical device and generate an electrical field to stimulate selected body tissue. The paddle includes a housing including walls that define an interior space and a plurality of windows formed through at least a first one of the walls for transmitting the electrical field to the body tissue, an electrode array including a plurality of electrode groups, each electrode group including at least two electrodes individually secured in a respective window and spaced between about 0.1 mm and about 10 mm apart, and a plurality of wires, each of the wires being coupled to a respective electrode and routed within the interior space to receive the electrical signal. A lead assembly and an implantable medical device can include the paddle.

Computational fluid dynamics modeling of the paddle dissolution apparatus: Agitation rate, mixing patterns, and fluid velocities

Abstract: The purpose of this research was to further investigate the hydrodynamics of the United States Pharmacopeia (USP) paddle dissolution apparatus using a previously generated computational fluid dynamics (CFD) model The influence of paddle rotational speed on the hydrodynamics in the dissolution vessel was simulated The maximum velocity magnitude for axial and tangential velocities at different locations in the vessel was found to increase linearly with the paddle rotational speed Path-lines of fluid mixing, which were examined from a central region at the base of the vessel, did not reveal a region of poor mixing between the upper cylin-drical and lower hemispherical volumes, as previously speculated Considerable differences in the resulting flow patterns were observed for paddle rotational speeds between 25 and 150 rpm The approximate time required to achieve complete mixing varied between 2 to 5 seconds at 150 rpm and 40 to 60 seconds at 25 rpm, although complete mixing was achievable for each speed examined An analysis of CFD-generated velocities above the top surface of a cylindrical compact positioned at the base of the vessel, below the center of the rotating paddle, revealed that the fluid in this region was undergoing solid body rotation An examination of the velocity boundary layers adjacent to the curved surface of the compact revealed large peaks in the shear rates for a region within∼3 mm from the base of the compact, consistent with a ‘grooving’ effect, which had been previously seen on the surface of compacts following dissolution, associated with a higher dissolution rate in this region

Wave Power Plant

Abstract: Wave power plant consisting of frame (5) carrying at least two paddles unit, capable of moving successively in series, when driven by progressive waves and returning by the gravitation power and the backward wave’s force. The plant constitutes appropriate means with at least one crankshaft mechanism for transferring the successive motion of paddle units in two ways into electric energy. Each of said paddles units comprising a rod (3), to be submerged into sea and said rod is secured on said frame (5) with possibility for pivoting with respect thereof, the lower extremity of said rod (3) terminated by a paddle plate (4) and said paddles units are arranged of said frame in series. The energy consumed successfully by each paddle unit is equal to the energy of the paddle’s movement forward from the forward wave's force plus the energy of the paddle’s movement backward from the backward wave's force and the paddle's gravity. The plant’s energy consumed, in at least one hydraulic engine, which rotate generator/s’.

The oscillating wave surge converter

Abstract: The Oscillating Wave Surge Converter (OWSC) is a novel shoreline or near-shore wave energy converter. The concept has developed from an analysis of the performance of the LIMPET shoreline oscillating water column. This analysis showed that the hydrodynamics of shoreline wave energy converters are highly non-linear and that they have a qualitatively different response to similar devices that are sited in deeper water. In particular, the water particle motion in shallow water is predominantly horizontal, with elongated wave troughs and heightened wave peaks. The OWSC is designed to couple strongly with the horizontal particle motion, permitting large amplitudes of motion of the working surface whilst minimising energy losses in associated water particle motions. The OWSC consists of a paddle rotating about a horizontal axis above the water surface and perpendicular to the direction of wave propagation. The paddle hangs at the mouth of a gully, effectively forming a 'water column' between the paddle and gully back wall. Thus, the OWSC is similar to the Japanese 'Pendulor' system; however the OWSC uses resonance of the water column rather than harbour resonance as its operating principle. A limited study of geometric parameters using a two-dimensional wave-tank model has been performed. Results from these experiments have shown that the 'water column' has an effect on the paddle dynamics and OWSC performance, with the OWSC having a higher power capture than both a shoreline oscillating water column (OWC) and Pendulor in shallow water. The potential for the OWSC in the shoreline and near-shore regions is also discussed, with implications for construction costs and the price for electricity generated by the OWSC. Potential control strategies for the OWSC are also discussed, together with their likely effect on operation and performance.

Method for Thermal Design of Paddle Dryers: Application to Municipal Sewage Sludge

Abstract: An experimental methodology was developed to improve the energy design of paddle dryers for sewage sludges. A laboratory batch dryer with a vertical agitator has been especially designed and instrumented to determine the heat flux densities. To determine the drying kinetic and the evaporation rates, the specific heat and the total heat of desorption of the sludge were measured using calorimetric devices. The evaporating flow rates recorded during the pasty and granular phases were then used in a simple model of the paddle dryer. The good agreement between the computed drying kinetics and the experimental ones measured in an industrial paddle dryer shows that the batch dryer can be used to classify the sludges according to their capacity to be dried in a paddle dryer.

Semiconductor Package Having Reduced Thickness

Abstract: A semiconductor package is disclosed that comprises a chip paddle and a semiconductor chip that has a plurality of bond pads. The semiconductor chip is located on an upper surface of the chip paddle. Leads are formed at intervals along the perimeter of the chip paddle. The leads are in electrical communication with the bond pads. The semiconductor chip, the chip paddle and the leads are encapsulated by an encapsulation material. The height of the semiconductor package of the invention is minimized by half etching the chip paddle to reduce the thickness of the chip paddle such that the thickness of the chip paddle is less than the thickness of the leads. Preferably, the chip paddle of the present invention is about 25-75% of the thickness of the leads.

Floating electricity production unit

Abstract: Electricity is produced by harvesting energy from flowing water, which does not harm the environment and which does not consume natural resources. A paddle wheel is stationarily positioned to penetrate the surface of a body of water. Preferably, a plurality of paddle wheels are deployed on a single floating platform to optimize the transfer of the energy contained in the flow of water passing the floating platform. Each paddle wheel is geared to rapidly rotate a generator axle of an electricity generator of the type conventionally deployed for wind turbines on “wind farms”. Preferably, each paddle wheel powers a plurality of electricity generators. Structure is provided to compensate for variations in flow rates in the body of water to intensify a flow of the water and to vary a depth of penetration of the paddle wheel into the water.

Switch apparatus for use in vehicles

Abstract: A vehicle switch apparatus for increasing space for other switches and ensuring operation of a switch when the switch must be felt for in order to be operated. The vehicle switch apparatus includes a paddle that has a front surface facing the driver and a rear surface opposite to the front surface. A push switch is arranged near the rear surface of the paddle and includes an operation portion operated by the driver. The paddle has a window for enabling the driver to visually check operation of the operation portion.

Semiconductor package having improved adhesiveness and ground bonding

Abstract: A semiconductor package having improved adhesiveness between the chip paddle and the package body and having improved ground-bonding of the chip paddle. A plurality of through-holes are formed in the chip paddle for increasing the bonding strength of encapsulation material in the package body. A plurality of tabs are formed in the chip paddle may also be used alone or in conjunction with the through-holes to further increase the bonding strength of the encapsulation material in the package body. The tabs provide additional area for the bonding site to ground wires from the semiconductor chip by increasing the length of the chip paddle.

Rocker paddle switch with articulated cam driver

Abstract: There is disclosed a paddle switch operated by pushing on the lower portion of a rocker paddle to turn the switch “on” or “off”. The lower edge of the paddle pivots in and out about its upper edge. The switch includes articulated driver means coupled to be driven by the rocker paddle when it is depressed and to urge the rocker paddle back to its out position. When the rocker paddle is pushed in, it urges the articulated driver means to rotate a cam means in a first, clock wise direction, or a second, counter clockwise direction. Alternate rotation of the cam drives a slider member having a cam follower back and forth along a linear axis. A shaped leaf spring cooperates with the cam follower to assist in the movement of the slider and to determine its rest positions. An indicator such as an LED is used to indicate the state of conduction of the switch. When the rocker paddle is released, it is biased by the articulated drive means to pivot back to its initial position. The rocker paddle of the switch is not located within a frame and has surface along its vertical axis of positive first differential and zero second differential, comprised of a combination of splines which extend between points of varying distances from a datum plane. This surface has zero second differential when the rate of height increase of individual splines is constant.

Rocker paddle switch with semi-rigid cam driver

Abstract: There is disclosed a paddle switch operated by pushing on the lower portion of a rocker paddle to turn the switch “on” or “off”. The lower edge of the paddle pivots in and out about its upper edge. The switch includes semi-rigid spiral wound driver means having a conical end coupled to be driven by the rocker paddle. When the rocker paddle is pushed in, the paddle urges the semi-rigid driver means to rotate a cam means in a first, clock wise direction, or a second, counter clock wise direction. Alternate rotation of the cam drives a slider member having a cam follower back and forth along a linear axis. A shaped leaf spring cooperates with the cam follower to assist in the movement of the slider and determines its rest positions. An indicator such as an LED is used to indicate the state of conduction of the switch. When the rocker paddle is released, it is biased by a spring to pivot back to its initial position. The rocker paddle of the switch is not located within a frame and has a surface along its vertical axis of positive first differential and zero second differential, comprised of a combination of splines which extend between points of varying distances from a datum plane. This surface has zero second differential when the rate of height increase of individual splines is constant.

Dispensing unit lighting system

Abstract: A lighting system for dispensing units such as ice and water dispensers on refrigerators includes a paddle on a shaft for activating and deactivating the dispenser by force applied from a receptacle. The shaft is configured as a light tube. A light source is positioned above the shaft to supply light into the shaft and paddle in the non-deflected condition. A prism is provided to receive light from the light source when the paddle is depressed, and to redirect light from the light source towards a receptacle positioned for receiving ice or water dispensed by the dispenser.

Semiconductor package and its manufacturing method

Abstract: A semiconductor package comprising paddle and a plurality of leads which extend at least partially about the die paddle in spaced relation thereto. Attached to the die paddle is a semiconductor die which is electrically connected to at least some of the leads. Attached to the semiconductor die is at least one inner package. A package body encapsulates the die paddle, the leads, the semiconductor die and the inner package such that a portion of each of the leads and a portion of the inner package are exposed in the package body.

Leadframe package for semiconductor devices

Abstract: A semiconductor package comprising a leadframe which includes a die paddle having an opening formed therein. In addition to the die paddle, the leadframe includes a plurality of leads, at least one of which is disposed in spaced relation to the die paddle. The remaining leads are attached to the die paddle and extend therefrom. Electrically connected to the die paddle is the source terminal of a semiconductor die which also includes a gate terminal and a drain terminal. The gate terminal is itself electrically connected to the at least one of the leads disposed in spaced relation to the die paddle. A package body at least partially encapsulates the die paddle, the leads, and the semiconductor die such that portions of the leads and the drain terminal of the semiconductor die are exposed in the package body.

Rocker paddle switch with flexible cam driver

Abstract: There is disclosed a paddle switch operated by pushing on the lower portion of a rocker paddle to turn the switch “on” or “off”. The lower edge of the paddle pivots in and out about its upper edge. The switch includes flexible driver means coupled to be driven by the rocker paddle. When the rocker paddle is pushed in, it urges the flexible driver means to rotate a cam means in a first, clock wise direction, or a second, counter clock wise direction. Alternate rotation of the cam drives a slider member having a cam follower back and forth along a linear axis. A shaped leaf spring cooperates with the cam follower to assist in the movement of the slider and determines its rest positions. An indicator such as an LED is used to indicate the state of conduction of the switch. When the rocker paddle is released, it is biased by a spring to pivot back to its initial position. The rocker paddle of the switch is not located within a frame and has a surface along its vertical axis of positive first differential and zero second differential, comprised of a combination of splines which extend between points of varying distances from a datum plane. This surface has zero second differential when the rate of height increase of individual splines is constant.

Semiconductor package and method producing same

Abstract: A semiconductor device package and method of fabricating same. The package includes a lead frame having a die paddle and a plurality of lead fingers. A first semiconductor die exhibiting a first size is adhered to the die paddle and is electrically coupled with one or more of the plurality of lead fingers. A second semiconductor die exhibiting a second size, different from the first size, is also adhered to the die paddle and is electrically coupled with one or more of the plurality of lead fingers. The first semiconductor die and the second semiconductor die each exhibit circuitry which is substantially identical in function. In one embodiment the first semiconductor die may be adhered to a first side of the die paddle while the second semiconductor die is adhered to an opposing side of the die paddle.

Paddle switch assembly

Abstract: A rocker switch assembly includes a switch body, a mounting strap, a frame, and a paddle for actuating the switch between an on and an off position. The paddle has a uni-convex cylindrical exterior surface. The rocker switch assembly further includes a faceplate in the form of a frame having an opening. The exterior front surface of the faceplate has a uni-convex cylindrical surface profile. In an assembled condition, the paddle substantially occupies the faceplate opening. Due to the selected convex shapes of the paddle and faceplate, a portion of the paddle front surface is always substantially flush with a portion of the faceplate surface and at no time does any part of the paddle surface protrude past the faceplate front surface.

Impact beam-integrated pelvic pusher

Abstract: A vehicle door structure includes an outer member, and an inner member spaced apart from the outer member and having structure forming an opening therein. An impact beam is affixed to the door structure and has a paddle member integrally formed therewith. The impact beam and the paddle member are laterally aligned with a compliant target through the opening in the inner member. Upon a lateral impact, the impact beam and paddle member move together toward the target, pushing the target inboard of the impact.

Investigation of Power System Failure of a LEO Satellite

Abstract: The Solar Array Paddle generation power of ADEOS-II satellite dropped suddenly. We have investigated the cause of the anomaly. The telemetry indicated the generation power dropped by 2 A-step. This corresponded in the generation power of each array circuit. No anomalous telemetry was found except for attitude when the anomaly occurred. FTA was carried out and the possible locations for the anomaly were identified; Solar Array Paddle or Solar Array Paddle Harness. The laboratory tests showed the possibility that sustained arcs occurred between harnesses and the heat produced by arcs destroyed the bundled harnesses.

Biotic plate propoller ship for

Abstract: A bionic flat propulsion mechanism ship is composed of two units which are left-right symmetrical relative to the longitudinal axis of ship and respectively installed at left and right of hull bottom at ship tail Each unit consists of fixed wall, rotary arm and its axle, and two paddles When the paddles are rotating, a bionic Weist-Fogh effect is generated between paddle and wall for increasing its propulsion efficiency

Connection arrangement for micro lead frame plastic packages

Abstract: A connection arrangement for a micro lead frame plastic (MLP) package (20) is provided that includes a paddle (28) configured to be connected to a circuit board (24) and a first ground pad (26) and a second ground pad (26) each connected to the paddle (28). The first and second ground pads (26, 26) together with the paddle (28) are configured to provide continuity of ground between the circuit board (24) and a chip (40) mounted to the paddle (28).

Method and apparatus for handling semiconductor wafers and interleafs

Abstract: A vacuum pickup device for handling semiconductor wafers and interleaf separators comprising a generally flat paddle member having a pickup surface and a planar top surface, a means for drawing air through an orifice in the paddle which creates a first vacuum of a predetermined magnitude on the pickup surface and directing the air over the top surface thereby creating an additional second vacuum at the periphery of the paddle to provide an additional lifting force gently supporting the wafer on the pickup surface whereby a low vacuum is distributed over a wide area to provide a good uniform gentle more even lifting force.

Integrated circuit package with leadframe locked encapsulation and method of manufacture therefor

Abstract: A semiconductor including a leadframe having a die attach paddle and a number of leads is provided. The die attach paddle has a recess to provide a number of mold dams around the periphery of the die attach paddle. An integrated circuit is positioned in the recess. Electrical connections between the integrated circuit and the number of leads are made, and an encapsulant is formed over the integrated circuit and around the number of mold dams.

Table game improvements

Abstract: Improvements for use with table games include a first set of improvements which allow a player of a table game to more securely hold a paddle used in playing the table game. A second set of improvements provides a visual barrier which obscures a player's view of a playing surface of a game table, providing for more dynamic, challenging and entertaining play. A third set of improvements provides an elevated platform allowing players of significantly differing heights to comfortably, conveniently and safely use a table game with a table surface of a fixed height.

Method of making a leadframe for semiconductor devices

Abstract: A semiconductor package comprising a leadframe which includes a die paddle having an opening formed therein. In addition to the die paddle, the leadframe includes a plurality of leads, at least one of which is disposed in spaced relation to the die paddle. The remaining leads are attached to the die paddle and extend therefrom. Electrically connected to the die paddle is the source terminal of a semiconductor die which also includes a gate terminal and a drain terminal. The gate terminal is itself electrically connected to the at least one of the leads disposed in spaced relation to the die paddle. A package body at least partially encapsulates the die paddle, the leads, and the semiconductor die such that portions of the leads and the drain terminal of the semiconductor die are exposed in the package body.

Fly swatting apparatus

Abstract: An improved fly swatting apparatus ( 10 ) including: a hollow handle member ( 20 ) provided with a dispensing slot ( 23 ) for disinfectant wipes ( 22 ), a shaft member ( 30 ) connected on one end ( 31 ) to the handle member ( 20 ) and connected to the other end ( 32 ) to the paddle element ( 41 ) of a paddle member ( 40 ) wherein, the opposed faces of the paddle element ( 41 ) are provided with pluralities of apertured adhesive sheets ( 43 ) ( 43 ) wherein, the apertures ( 44 ) ( 44 ) of the adhesive sheets ( 43 ) ( 43 ) are aligned with the apertures ( 42 ) ( 42 ) of the paddle element ( 41 ).

Solid rubber for table tennis paddle

Abstract: PROBLEM TO BE SOLVED: To provide a sold rubber for a table tennis paddle and the table tennis paddle, wherein spin performance is maintained even if dust adheres to the surface and wherein the spin performance is maintained and improved even if use causes wear. SOLUTION: The table tennis paddle 1 has a main body 3 and a rubber sheet 7. In the rubber sheet 7, a sandwich rubber 9 and the solid rubber 11 are laminated. The solid rubber 11 is formed of a polymer composition containing a base polymer, and the base polymer dispersedly contains a polyamide-based thermoplastic resin of ≥2 vol% and ≤35 vol% in an elastomer component composed of a rubber or a thermoplastic elastomer. COPYRIGHT: (C)2004,JPO

Fan mounted air purifier

Abstract: An air purifier is provided for mounting to a leading edge of a fan paddle so that equal, mirror-image portions reside above and below the fan paddle. The air purifier is formed with a synthetic fiber filter medium assembled to a lattice framework. Adhesive tape strips are positioned on the framework for mounting the air purifier to the fan paddle.