Showing papers on "Paddle published in 1983"

Plastic package with lead frame crossunder

Abstract: Proposed is a new way to distribute power off chip using a specially designed lead frame. The support paddle of the lead frame is split electrically and provides at least two conductor members that are arranged to cross under the chip after the chip is bonded to the paddle. Power and/or ground can be distributed to two or more edges of the chip by providing bonding sites at or near the extremities of the crossunders. The chip itself is electrically isolated from the crossunder members.

Communication device for handicapped persons

Abstract: A communications device suitable for use by severely handicapped persons having speech impairments and capable of only spastic movements comprises a housing in which speech reproduction apparatus is located for storing and reproducing pre-recorded audio message segments. The exterior of the housing has a nearly horizontal front portion on a console on which three relatively large (approximately 5"×5") pressure-operated paddle switch actuator members are located. A vertical display panel is located immediately behind the paddle actuators and has on it visual aid cards which have a symbol identical to the recorded message which is to be reproduced by actuation of the appropriate paddle. Pressure on the selected paddle closes a switch which turns on a light associated with the selected visual aid card and also actuates the reproduction of an audio message corresponding to the visual aid card.

Hand paddle for a paddle ball game

Abstract: A hand paddle for a paddle ball game includes a back member with a back surface which is conformed generally to the shape of either a user's right or left hand. The paddle includes a contoured palm support region, a plurality of elongated finger receiving depressions extending from the palm support region and a thumb manipulation region adjacent to the palm support region and the elongated finger receiving depressions. Each elongated depression has a finger gripping ridge transverse thereto at a distal location relative to the palm support region for being gripped by the end of the finger positioned in that elongated depression. The back surface also includes a thumb gripping ridge adjacent the thumb manipulation region for being pressed against by the user's thumb to facilitate gripping of the back surface of the back member. Retention straps, including finger straps, crisscrossed hand straps and a crisscrossed wrist strap are attached to the back member for holding the hand paddle on the user's hand. The hand paddle further includes a ball contacting front member affixed to the back member to provide a surface for hitting the ball.

One-handed paddle

Abstract: A one-handed paddle having a blade portion, a hand-grip portion and an arm brace portion. The arm brace portion has a resilient member which releasably grips the forearm of a user to maintain the arm brace portion in contact with the forearm of the user during use of the paddle.

Apparatus for collecting and microscopically examining a specimen

Abstract: This apparatus involves an assembly of a test tube and paddle insert The tube has a frustoconical body and a tapered tip in which is a well, having opposed tapered wide flat walls and narrow walls The paddle insert has a long handle integral with a transparent tapered paddle head that is shorter than the tapered well in which the paddle head seats Flexible fingers extend away from the head to frictionally engage the narrow walls of the well and prevent the paddle from falling out of the tube when the tube is inverted or tipped A ridge on the edges of the side walls and the back of the paddle head retains a specimen in a narrow chamber defined between adjacent walls of the tube tip, the paddle head and the ridge for microscopic examination thereof

Fluid flow meter

Abstract: A fluid flow meter having a paddle wheel rotatably mounted in a cylindrical cavity and an inlet conduit and an outlet conduit tangentially aligned with the periphery of the cavity for directing a fluid to flow through it. The paddle wheels's axis of rotation is displaced from the cavity's centerline, in the direction of the inlet conduit and substantially perpendicular to the flow of fluid entering the cavity, such that the flow meter operates effectively over an extended range of Reynolds numbers, spanning both turbulent and laminar flows.

Water bicycle and detachable device therefor

Abstract: A water bicycle and a detachable device for converting a sail board into a water bicycle. The water bicycle has a flotation member and a frame removably mounted to the flotation member. Pedals are rotatably mounted to the frame. Paddle wheels are provided on either side of the frame and are interconnected with the pedals so as to be rotatably driven by the pedals. A steering handle is rotatably mounted to the frame and is interconnected with the paddle wheels to selectively steer the water bicycle by raising and lowering the paddle wheels.

Integrated circuit lead frame with improved power dissipation

Abstract: A lead frame apparatus for providing electrical connections to an integrated circuit includes a paddle 10 to which the integrated circuit is attached, a series of electrically conductive leads 12 extending outward from opposite sides of the paddle 10, and flared regions 18 of generally expanding width extending outward from opposite sides of the paddle 10. In the preferred embodimenttheflared region 18 and the electrically conductive leads 12 are maintained in alignment by tie and dam bars 15 and 17 which are removed after the lead frame 5 is encapsulated.

Cantilever paddle for use with wafer boats

Abstract: A cantilever wafer paddle system for use in the manufacture of semiconductor devices so the system having two support members positioned above and attached to a suspension member such that the suspension member is capable of supporting and suspending a series of wafer boats within a diffusion tube without allowing any portion of the paddle, boats or wafers contained within the boats to contact the internal walls of the diffusion tube.

Wave power pumping apparatus

Abstract: PURPOSE:To enable to protect a wave power pumping apparatus from damages, by connecting various constituent parts of the apparatus such as a pipe shaft, a paddle lever, a swing lever and a load in a freely detachable manner, so that the apparatus can be disassembled easily, for instance, at the time of stormy weather CONSTITUTION:Since a paddle lever 3 is arranged to be movable freely to the right and left, it is protected against the force acted by side waves, so that rupturing of the paddle lever 3 and a clamping metal 2 is not caused Here, since arrangement is such that all of the constituent parts of the apparatus such as a pipe shaft 1, paddle lever 3, swing lever 8, power transmitting rope 13, except for support rods 10, can be detached with ease when there is fear of damaging the apparatus, for instance, due to stormy weather, the apparatus can be carried, if necessary, to a proper place for safe keeping in case that the apparatus is constructed in a light structure for a single load and also in case that the apparatus is constructed firmly in a heavy structure for a plurality of loads

Bobbin and plunger assembly

Abstract: A one-piece plunger with a control button at one end and a driving paddle at the other end is located in a one-piece sewing machine bobbin. The bobbin is provided with crossed slots, one of which normally has the paddle therein and which is dead ended to provide a stop limiting spring biased upward movement of the plunger in the bobbin, the other slot being open ended to permit the paddle to be moved therethrough during assembly of the plunger in the bobbin.

Dry material dispenser

Abstract: A dry matter dispensing device comprising a hopper having a paddle pivoted between the front and rear walls, the paddle is oscillated to sweep the contents from the opposite ends of an arcuate, concave tray with each stroke thereof. The dry material slides down a pair of adjustably sloped panels on opposite sides of that paddle so that, as the paddle sweeps material in front of it on each stroke, more is dropping down the sloped panel behind it to pile up on the concave tray. Hence, a measured amount of the dry material is delivered by setting the length and number of paddle strokes. The adjustment of the sloping panels is made to ensure free flow to the concave tray without the material bridging or escaping prematurely from the tray.

Compactor and paddle wheel for aquatic harvester

Abstract: A compactor and dual paddle wheel mechanism for an aquatic harvester which includes a carriage movably mounted by means of rollers on the deck of the aquatic harvester and characterized by a serpentine chain drive system for selectively moving the carriage forwardly and rearwardly on the deck, and a rake pivoted to the carriage for engaging, relocating, compacting and unloading aquatic growth harvested by the aquatic harvester and deposited on the harvester deck. Dual, independently driven paddle wheels, which include rotating drums shaped by multiple drum panels and spaced drum closure panels, with paddles extending radially from the drums and securely anchored by braces located inside the drums serve to drive and maneuver the aquatic harvester.

Shutter device for photographic printer

Abstract: A shutter device for a photographic printer includes a pair of paddle devices respectively driven by a pair of rotary solenoids. The solenoids are actuated such that one paddle moves to open the optical path to begin an exposure, and the other paddle moves to close the optical path to end the exposure, and remains in the optical path until moved to start a further exposure. In this manner, the opening and closing functions of the paddles are reversed with each exposure.

Belt actuator for wave maker

Abstract: The invention relates to the driving of the paddle of a wave maker to and fro in a body of liquid by use of an endless belt 12 secured to the displacer remote from the rocking axis 3, of the paddle and driven by a reversible motor.

Clutching arrangement for a sewing machine bobbin

Abstract: A clutch which is engaged to rotate and wind thread on a sewing machine bobbin is provided with clutch parts that include a single bladed paddle, and a member with a pair of crossed paddle receiving through slots, one of which has a chamfered upper edge that substantially widens the mouth of the slot and the other of which is without such chamfered edge.

Method of making cheese

Abstract: An enclosed finishing vat for cheese making. The vat has a generally oval configuration and an agitating unit is mounted for reciprocating movement on a frame above the vat and includes a vertical drive shaft that extends through a slot in the top of the vat. The lower end of the drive shaft carries a rotatable support arm and at each end of the arm both a stirring paddle and an unloading paddle are pivotally mounted. The stirring paddle and unloading paddle extend in opposite directions from the respective end of the arm. In operation, the agitating unit reciprocates along the length of the vat, and the arm is rotated such that the stirring paddles lead in the direction of rotation and stir the curd, while the unloading paddles trail and float on the curd. To unload the curd from the vat, a discharge opening in the bottom of the vat is opened and the direction of rotation of the arm is reversed, whereby the unloading paddles lead in the direction of rotation and scrape along the bottom of the vat and deliver the curd through the discharge opening.

Refuse feeder for incinerator

Abstract: PURPOSE:To provide a dispersed distribution of refuse into the furnace and improve an efficiency of combustion by a method wherein a paddle is arranged below the shoot and high pressure air is injected along the surface of the paddle. CONSTITUTION:When refuse is dropped into the refuse shoot 3 while the paddle 19 is oscillated and the high pressure air is injected from each of the upper nozzle 15 and the lower nozzle 16, the refuse is blown forwardly under a striking action caused by the oscillation of the paddle 19 and at the same time the refuse is dispersed under the striking action, struck against the high pressure air flowed along the striking surface of the paddle 19 and the high pressure air flowed along the inclined bottom surface of the feeding port 2. The refuse is moved along the flow of the high pressure air and flows into the furnace at the feeding port 2. Thereby, it is made possible to provide a uniform dispersion of refuse in the furnace and then to improve an efficiency of combustion.

Paper discharging device

Abstract: PURPOSE:To enable a discharged paper detecting means to be always actuated with a constant amount, in a paper discharging device for a copying machine, by providing a paper discharging paddle for urging a paper toward the discharged paper detecting means, coaxially wit the rotary shaft of a paper discharging roller and in the vicinity of the discharged paper detecting means. CONSTITUTION:The leading edge of a paper which is fed through a gap between a heating roller 12 and a pressing roller 14, is bit between a paper discharging roller 16 and a pinch roller 18. At this time, paddle members 38 in a paper discharging paddle 36 urge the paper P toward an upper paper guide plate 40 from the lower side, and therefore, the paper P is fed out by the above-mentioned rollers 16, 18 while the paper is slid on the paper guide plate 40 by means of the paddle members 38. During this period the paper P is pushed up toward a discharged paper detecting lever 28 since the forward of the paddle members 38 extend from the contact surface of the paper discharging roller 16 in the vicinity of the above-mentioned lever 28. Accordingly, the above-mentioned lever 28 is always rotated to a constant amount through the paper P even if the rigidity of the paper is weak, so that a detector attendant with the lever 28 surely issues a signal.

Magnetic brush developing device

Abstract: PURPOSE:To prevent a variation of a charging value of a developer due to standing time, by separating a paddle and a blender placed in a developing device, from a copier driving system, connecting them to a separate motor, and stirring the developer at the time of noncopying. CONSTITUTION:A developing roll 2 in a housing 1 is connected to a driving system of a copying machine through a gear mechanism 6, and is rotated by synchronizing with a photosensitive body 5. A paddle 3 and a blender 4 are connected to a variable speed driving motor 8 through a gear mechanism 7. The motor 8 is driven at a speed matching a rotating speed of the roll 2 at the time of copying by a controlling circuit, is driven for a constant interval of time at the time of noncopying, and is driven at a higher speed than that of the roll 2, when an electric power supply is turned on. Therefore, since a developer is stirred at the time of noncopying and when the electric power supply is turned on, a variation of a charging value is prevented, copying picture density is kept constant at all times, and a satisfactory copy is obtained.

Sheet aligning device

Abstract: This specification discloses a sheet aligning device for aligning conveyed sheets by bringing rotatable paddles comprising a plurality of flexible members into contact with two surfaces substantially orthogonal to each other and in which the sheets are aligned by a rotatable main paddle member for imparting to the sheet a draw-in force in the direction of intersection of the two surfaces substantially orthogonal to each other and a rotatable auxiliary paddle member for causing the sheet to be conveyed to one of the two surfaces with a draw-in force weaker than the draw-in force of the main paddle member.