Showing papers on "Paddle published in 1995"

A three-dimensional finite element model of human transthoracic defibrillation: paddle placement and size

Abstract: A detailed 3-D finite element model of the conductive anatomy of the human thorax has been constructed to quantitatively assess the current density distribution produced in the heart and thorax during transthoracic defibrillation. The model is based on a series of cross-sectional CT scans and incorporates isotropic conductivities for eight tissues and an approximation of the anisotropic conductivity of skeletal muscle. Current density distributions were determined and compared for four paddle pairs and two paddle sizes. The authors' results show that the myocardial current density distributions resulting from a defibrillation shock were fairly uniform for the paddle pairs and sizes examined in this study. Specific details of the spatial distribution of the current density magnitudes in the heart were found to depend on paddle placement and size. When the minimum current necessary to defibrillate was delivered, the maximum myocardial current density produced with any of the paddle sizes and positions examined was less than four times the minimum current density necessary to render a myocyte in a fibrillating heart inexcitable, and less than 40% of the damage threshold. These results suggest that common clinically used defibrillation paddle positions have a safety margin as large as 2.5 for current and /spl sim/6 for energy. >

Adjustable pot stirrer

Abstract: A stirrer is disclosed herein for mixing ingredients in a pot wherein the stirrer includes a housing enclosing a battery-operated motor driving a downwardly depending drive shaft to which a stir paddle is detachably connected via an offset link so that the paddle revolves about the central axis of the housing but offset therefrom. A releasable mounting arrangement attaches the housing to the rim of the pot so that the drive shaft is centered thereon allowing the paddle to revolve without striking the wall of the pot. The mounting arrangement includes self-adjusting, spring-bias arms having end clamps detachably coupled with the pot rim. Push button and dial controls with circuit networks carried on the housing selectively control time, speed and other operating parameters.

Rotary grip with paddle for use on pallet truck

Abstract: A center controlled pallet truck includes a power unit located at a forward end of the truck, an operator platform in a central portion of the truck, load carrying forks located at a rear end of the truck, a steering arm mounted on and extending upwardly from a forward section of the power unit for controlling the direction of travel of the truck. A control handle mounted on said steering arm includes twist grips for controlling the speed of both forward and reverse movement of the truck. Each twist grip is provided with a generally horizontally disposed, forward facing paddle located at the outer ends of the twist grips to permit the outside fingers on the hand of an operator to move the paddle either upwardly or downwardly and thus rotate the twist grip with minimum force either while the operator is walking along side or riding on the truck.

Meat massaging machine

Abstract: A massaging machine has a tank inclined to the horizontal and pressure-tight chute at the upper end for loading pieces of meat into the vessel and a chute at the lower end for discharging the massaged meat. The tank is supported by load cells on respective legs of a support and the paddles are designed, upon rotation, to urge the pieces of meat away from the discharge chute until the direction of the paddle shaft is reversed to allow discharge of the meat.

Apparatus and method for achieving mechanical and thermal isolation of portions of integrated monolithic circuits

Abstract: A preferred embodiment of an integrated semiconductor device includes a semiconductor die having a hole therethrough. A paddle member includes a handle member connected between the paddle member and the semiconductor die to suspend the paddle member in the hole. A cap layer is bonded to the semiconductor die to completely cover the hole, the paddle member, and the handle member. The second surface of the semiconductor die is bonded to the lead frame. A preferred embodiment of a method of manufacturing an integrated semiconductor device includes the steps of: forming a semiconductor die having a paddle area for isolating sensitive circuitry and an unoccupied area which substantially surrounds the paddle area except for a handle area, forming a trench in the unoccupied area, covering the paddle area, the trench, and the handle area with a sacrificial spacer material, covering the sacrificial spacer material with a cap layer, etching the semiconductor die beneath the paddle area and the trench until the handle area suspends the paddle area within a hole formed in the semiconductor die, and bonding the second surface of the semiconductor die to a lead frame.

Thermally enhanced leadframe

Abstract: A leadframe that exhibits improved thermal dissipation and that can be incorporated into standard integrated circuit (IC) packages is provided by increasing the thermal cross-section between the leadframe paddle and the lead fingers (leads) so that the leads are utilized for conducting a significant amount of heat away from the IC. A larger thermal cross-section can be achieved by making the shape of the paddle perimeter nonlinear to increase the surface area of its edge. In the preferred embodiment, the paddle perimeter has a "serpentine" shape and the inner ends of the leads are placed in close proximity to the paddle perimeter and are shaped to substantially follow its serpentine shape. The shaped paddle and lead ends increase the thermal cross-section between the paddle and the leads, resulting in improved thermal conduction. The leads conduct the heat to the outside of the package, where it is dissipated into the circuit board on which the leadframe package is mounted. For a package with a large number of leads, the paddle perimeter preferably has a saw-tooth shape, with at least some of the leads positioned between adjacent teeth.

Thermally enhanced leadframe for packages that utilize a large number of leads

Abstract: A leadframe that exhibits improved thermal dissipation and that can be incorporated into standard integrated circuit (IC) packages is provided by increasing the thermal cross-section between the leadframe paddle and the lead fingers (leads) so that the leads are utilized for conducting a significant amount of heat away from the IC. A larger thermal cross-section can be achieved by making the shape of the paddle perimeter nonlinear to increase the surface area of its edge. In the preferred embodiment, the paddle perimeter has a "serpentine" shape and the inner ends of the leads are placed in close proximity to the paddle perimeter and are shaped to substantially follow its serpentine shape. The shaped paddle and lead ends increase the thermal cross-section between the paddle and the leads, resulting in improved thermal conduction. The leads conduct the heat to the outside of the package, where it is dissipated into the circuit board on which the leadframe package is mounted. For a package with a large number of leads, the paddle perimeter preferably has a saw-tooth shape, with at least some of the leads positioned between adjacent teeth.

Solar battery paddle drive control device for three-axis stable satellite

Abstract: PURPOSE:To prevent the occurrence of the solar steering error of a paddle owing to light, deflected by a globe, of solar light right after transfer from sun shadow to sunshine and right before transfer to sun shadow from sunshine through control of drive of the solar battery paddle of a three-axis stable satellite. CONSTITUTION:A timing processing part 7 is provided to make a signal, by means of which a signal for the paddle drive rotation angular velocity error of a rotation angle generating part 5 is used or not used by a drive pulse generating electronic circuit 10, according to specific delay times t1 and t2 based on an output signal from a solar presence generating part 4. A signal from a solar sensor for tracing is not used in a position on an orbit influenced by light, deflected by a globe, of solar light.

Exercise device and method to simulate kayak paddling

Abstract: This invention describes an exercise machine which is operated in a manner similar to paddling a Kayak or other water craft with a double blade paddle. The device incorporates a "T" bar shaped handle assembly centrally positioned in front of a seated operator and connected at its base with an articulating joint to a torque resisting mechanism. The articulating joint allows the operator to manipulates the handle bar in a pattern similar to that of paddling a Kayak as this configuration allows the handle bar to pivot and be positioned from side to side with a similar freedom of movement experienced with a Kayak type double blade paddle. Only the rotational component of the handle bar movement induced by paddle stroke motions are transmitted through the articulating joint and resisted by the torque resistance mechanism. The torque resistance mechanism utilizes a mechanical configuration where the alternating and reversing rotations of the handle bar movement are transformed into a unidirectional rotation of a flywheel where the combination of rotational inertia and an adjustable drag device provide an dynamic exercise resistance which is similar to that which is actually experienced while propelling a Kayak.

Linerless label stacking

Abstract: A linerless label stacking assembly and procedure utilize a paddle wheel first conveyor having a rotatable central portion with a number of paddles extending generally radially outward from the central portion. The central portion is along a generally horizontal axis and is rotated about that axis at spaced time intervals in a first direction. Each paddle has first and second curved surfaces which engage the linerless labels for stacking. A second conveyor having a generally horizontal supporting surface is disposed at approximately the same vertical position as the first conveyor axis, and a rotary cut off device, or a similar individual label cutter, feeds linerless labels to the first conveyor one at a time. After a stack of predetermined size is formed on a paddle, a controller (which receives input from a sensor associated with the rotary cut off) controls motors to rotate the first conveyor and operate the second conveyor to advance a stack of labels away from the cut off device.

Paddle and bat ball game

Abstract: A base running ball game has combined paddle and bat implements to hit a ball. Offensive players use the combined paddle bat to hit the ball into a fairfield occupied by defensive players. Some of the defensive players use the combined paddle and bat implement to field the batted ball and send the ball into safe areas of bases. A put out is made when the ball lands in the safe area of a base in front of a batter running to the base.

Plastic fastener for shoe-lasting applications

Abstract: A fastener for tying together a pair of shoelace eyelets on a shoe upper in such a way as to maintain the appropriate spacing therebetween while the shoe upper is being lasted. In one embodiment, the fastener is a unitary plastic member shaped to include an elongated flexible filament having a cross-bar at one end and a paddle at the opposite end, the paddle being provided with two or more alternative openings through which the cross-bar may be inserted to form a loop. The openings are preferably disposed at different points along the length of the paddle so that the different sized loops may be used for different eyelet spacings. In another embodiment, a feed bar is severably connected to the fastener for use in positioning the paddle so that the cross-bar may be aligned with and easily inserted into a desired cross-bar opening. Alternatively, the paddle may be provided with registration means. To attach the fastener to a pair of eyelets of a shoe upper, the paddle is positioned so that a desired opening is aligned with one of the eyelets. The filament is then drawn over the upper to the other eyelet, and the cross-bar is inserted first through the pair of eyelets and then through the desired opening in the paddle.

Production of emulsion

Abstract: PURPOSE:To provide the title production process wherein a specified agitation tank is used, the deposition on the tank can be markedly reduced, the distribution of the particles of the emulsion is sharp, and the shapes of the particles are uniform CONSTITUTION:A process for producing an emulsion by emulsion-polymerizing a polymerizable monomer, which comprises performing the emulsion polymerization by using an agitation tank 2 composed of a vertical cylinder agitation tank 2 surrounded with a jacket for heat exchange, a vertical rotary shaft 3 in the center of the tank 2, a lower paddle 4 secured to the rotary shaft 3 near the bottom of the tank 2 and having the end shaped like a sweepback wing, and an upper paddle 5 having downwardly extending platy fins 6 at its lower end and a crossing angle alpha of 90 degrees with respect to the lower paddle 4, and preceding the paddle 4 in the direction of rotation

Automatic wafer boat loading system and method

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.

Horizontal powder material mixer

Abstract: The utility model provides a horizontal powder material mixer, which is provided with a material cylinder, a feed inlet on the material cylinder, a discharge port with a flashboard, rotating shafts arranged along the centre of the material cylinder in the axial direction, and stirring paddles composed of a paddle handle and an upper and a lower paddle blades and arranged on the rotating shaft along the radial direction, wherein, the upper and the lower paddle blades are arranged to form an angle, the paddle blades relative to the rotating shafts are arranged to form the angle, and one end of each rotating shaft is connected with a power source through a transmission mechanism The horizontal powder material mixer of the utility model can shorten the mixing time of powder materials, and enhance the mixing uniformity of the powder materials

Electromagnetic actuator for a low tension circuit breaker

Abstract: The circuit breaker electromagnetic propellant mechanism includes an electromagnetic body (7) and a paddle mounted to pivot about a hinge (21). There is a fixed contact (3) and a mobile contact support arm (5) mounted pivotally about a hinge (22). A hammer (9) is formed by an elongated piece inserted between the paddle (8) and the mobile contact support arm. The hinge (21) of the paddle (8) and the hinge (22) of the mobile contact arm (5) are situated on the same side w.r.t. the electromagnetic body (7). The hammer (9) is connected to the paddle (8) at an intermediate point between the hinge (21) of the paddle and the end region of the paddle, at a level which may be magnetically attracted to the electromagnetic body (7).

Horizontal paddle type fermentation system and method of operating the same

Abstract: A compact horizontal paddle type fermentation system which is easy to maintain and small in size. Also disclosed is a method of operating the horizontal paddle type fermentation system. The fermentation system has a fermenter 1 for composting a raw material stored therein by fermentation, a stirrer 2 with a paddle wheel which stirs and moves the raw material in one direction, thereby turning the raw material, and a travel gear 3 for freely moving the stirrer 2 in the fermenter 1. The fermentation system further has rails 12b for moving the travel gear 3 between a raw material inlet 4 and an outlet 5, and side walls 14 for covering the fermenter 1. The rails 12b and the side walls 14 are supported by side walls 1c of the fermenter 1. The paddle wheel 20 has blade tips 20a and 20b which are capable of turning the raw material in opposite directions in response to forward and backward rotation of the paddle wheel 20.

Apparatus for use in tying together a pair of shoelace eyelets with a plastic fastener

Abstract: An apparatus for use in tying together a pair of opposing shoelace eyelets of a shoe upper with a plastic fastener of the type comprising a flexible filament having a cross-bar disposed at one end thereof and a paddle comprising an opening disposed at the opposite end thereof. The apparatus includes a hollow slotted needle insertable through the pair of opposing shoelace eyelets and the opening in the paddle, a paddle positioning assembly for aligning the opening in the paddle with the pair of opposing shoelace eyelets, a cross-bar feeding assembly for loading the cross-bar into the needle, and a cross-bar ejecting assembly for ejecting the cross-bar from the needle. Where the plastic fastener is formed as part of a web of continuously connected fastener stock, the apparatus preferably further includes a web advancement assembly for advancing the web so that the paddle and the cross-bar of a plastic fastener are brought into register with the paddle positioning assembly and the cross-bar ejecting assembly, respectively.

Production of polymer latex

Abstract: PROBLEM TO BE SOLVED: To reduce the amount of fine coagula and also to narrow the particle distribution of latex when producing the polymer latex. SOLUTION: A polymerizable monomer is subjected to an emulsion polymerization by using a stirred vessel 1 as a polymerization vessel to provide the objective polymer latex. The stirred vessel 1 has a rotary shaft 2 vertically installed in the center part of the stirred vessel 1, and plural paddle blades 3, 4 arranged on the rotary shaft 2 in the upper and lower many rows. The paddle blade 3 at the lowest row is arranged so that the lower part may positioned at the vicinity of the bottom surface of the stirred vessel 1, and at least outer end parts thereof have plate-like fins 6 extended upward. The paddle blade 4 positioned at the upper row in neighboring paddle blades in the upper and lower direction is arranged so as to precede the paddle blade 3 positioned at the lower row at a crossing angle (a) of <90 deg. in the rotation direction.

Paddle of mixer

Abstract: PURPOSE:To provide the paddle of a mixer which prevents the mixture from containing bubbles that are generated by agitating. CONSTITUTION:The body 4 of a paddle is constituted of the horizontal base 1, agitation posts 2, 2 raised in both ends thereof and a connection supporter 3 raised in the center. Length between the outer ends of both agitation posts 2, 2 is 180mm and height of both agitation posts 2, 2 is 90mm and thickness thereof is 8mm. The cross section of the connection supporter 3 raised in the center is a square of 8X8mm. The lower end of the vertical pipe part 5a at one side of a supporting pipe 5 is combined with the upper of the connection supporter 3. The supporting pipe 5 is constituted of two pieces of long and short vertical pipe parts 5a, 5b and a horizontal pipe part 5c connecting the interval between the upper ends thereof.

Wind or water turbine having feathering vanes.

Abstract: A gear assisted transverse flow turbine comprises frame 1, anchored stationary relative to fluid flow, supporting central shaft 4 rotating about an axis through its centre and driven from central hub 11 by equally spaced paddle shafts 15 projecting radially outwards. The paddle shafts are fitted with sleeve gears 24 and asymmetrical paddles 17 are free to rotate about their horizontal axes and supported at mid-points by bearings 14 on arched supports 13 cantilevered from hub 11, the supports 13 being fitted with paddle rotation stops (33 and 34, Fig. 4) which interact with paddle shaft stop-bars (35) to prevent over rotation of paddles and enable fluid forces to be transformed to rotate hub 11 and drive generator 8, said paddles being assisted in rotation to drive and feathered attitudes by interaction of sleeve gear 24 with fixed gears 25 and 26 located at points upstream and downstream of hub 11.

Device for walking on water

Abstract: The device has a double-hull buoyancy body and connecting frame. A user is fastened in the suspension gear (3) and makes walking movements, to move the device across the water. The user applies a force to one or two hinged foot paddles (4). The paddles are non-removably fastened to the soles of fixed shoes or boots. The paddle blade moves about the pivot axis, from a position at right angles to the sole of the shoe, in direction of the stern to a position parallel to the sole, and back again. The return movement is strengthened by a rubber or spring element.

Pivot assisted defibrillator paddle retainer

Abstract: A retainer assembly for a defibrillator paddle has a resilient back plate. The back plate secures to a back wall in a pocket by a fastener positioned to allow pivotal movement of the back plate. The back plate has a bracket at its inner edge, retaining an edge of the base of the paddle. A lip extends forward from an outer edge of the back plate to overlie an outer edge of the paddle. The lip is within a tab section that deflects into a recess if a user exerts a sufficient outward pull on the handle.

Package for a power semiconductor device

Abstract: A package for a power semiconductor device is made using the method comprising the steps of preparing a lead frame including a blade or paddle for providing a semiconductor chip on a top surface thereof, tie bars for supporting said paddle, wherein said paddle being provided lower in horizontal surface than the leads; attaching a heat radiating plate on a bottom surface of the paddle by cladding; attaching a Kovar plate on the top surface of the paddle by soldering, said Kovar plate having similar heat expansion coefficient to that of the chip; providing the chip on the Kovar plate by soldering; wire-bonding terminals of said semiconductor chip to the corresponding leads of the lead frame, respectively; coating polyimide over the semiconductor chip by spin-coating; curing the polyimide coated thus; forming a metal cap above the said paddle by soldering, and injecting a molding material into a molder for enclosing the paddle and curing the molding material injected thus. The method can be applied to produce a plastic package of a power semiconductor device at low cost. The metal cap is grounded through the tie bars as a source electrode to shield a noise.

Rotating drum discharging bulk grains onto rotating concentric paddle wheel

Abstract: A rotating drum processes bulk solids with a wide range of grain diameter. The assembly incorporates a drum mantle (4) with an inlet (4a) at one end and a discharge outlet (4b) at the other. The novelty is that: (a) the discharge end faces a concentric paddle (6,6',6",6'''), rotating wheel (7) whose inner diameter (D2) is larger than the inner diameter (D1) of the drum discharge end; (b) the paddles (6a) receiving the discharged bulk solids are so positioned that they maintain a given minimum distance from the discharge (4b); (c) the surfaces (6a) paddles (6) are all at approximately the same angle ( alpha ) between 0 and 60 degrees to the drum mantle; the rotating wheel (7) is fixed to and rotates with the drum mantle (4).

Golf putting training device

Abstract: A golf training aid which pro-actively trains the golfer to use the upper body muscles to stroke a putt using the golfer's preferred putter A "paddle-like" handle having substantially flat planar surfaces is attached to the top of the putter shaft The paddle is held with the golfer's hands open and finger extended by applying inward pressure on both hands This inward pressure helps to freeze the golfer's muscles in the hands, wrists, and forearms forcing the golfer to use the larger upper body muscles to stroke the putt In one embodiment the paddle is secured to the grip of the putter by straps laminated with tacky elastomer material and Velcro The closed straps press the grip against a slot in the paddle lined with elastomer material The friction thus produced maintains the parallel alignment of the paddle with the face of the putter head A second embodiment discloses a paddle which is split in halves with a slot formed between the halves The slots are lined with tacky elastomer material such that when the paddle halves are mated together, the putter grip is pressed between the elastomer line slots to thereby secure the paddle to the grip and maintain the parallel alignment of the paddle with the face of the putter head

Development testing apparatus for developing type solar battery paddle

Abstract: PURPOSE:To obtain a development testing apparatus which can be applied to a solar battery paddle to be developed at two stages in which a panel of an outermost side is first developed at 90 degrees and all the panels are then developed at 90 degrees to a satellite. CONSTITUTION:When a development test of a solar battery paddle to be developed at two stages in which a panel 1b of an outermost side is first developed at 90 degrees and all the panels are then developed at 90 degrees to a sidewall of a simulated satellite is executed, the panel 1b is first hung by an arm 39 through a tensile coil spring 25 and a wire 40, a holding mechanism for fixing the panel 1b to the sidewall of the satellite is released, and when a developing motion of the panel 1b is started, the arm 29 is rotated around a shaft 41 to follow up the start to execute the development test of the first stage. The panel 1b is locked fixedly at a position developed at 90 degrees, and hence the development test of the first stage is finished.

Food positioning apparatus

Abstract: An apparatus for positioning food components in a container that is moving along a conveyor. The apparatus has a paddle member and a link. The paddle member is movable between a first position within the container and a second position outside of the container. The paddle is also pivotable when moved between the first position and the second position. The paddle member is adapted to engage the food components and move the food components to a selected location in the container as the container moves along the conveyor. The link moves the paddle member between the first position and the second position and pivots the paddle member as the paddle member is moved between the first position and the second position.