Showing papers on "Paddle published in 1990"

Small incision intraocular lens insertion apparatus

Abstract: An apparatus for inserting a foldable lens into an eye through an incision in the eye comprising: a paddle permanently affixed to the apparatus, and sized and adapted to contact the lens in the unfolded state; an elongated tube including a distally open interior space sized and adapted to receive the paddle in contact with the lens in the folded state, and a distal end portion sized and adapted to be inserted into the eye through the incision, the tube being cooperable with the paddle to fold the lens into the folded state as the lens in contact with the paddle is received through the distal opening into the interior space; and a mechanism to provide relative movement between the paddle and the tube.

Fluid and Particle Laser Doppler Velocity Measurements and Mass Transfer Predictions for the Usp Paddle Method Dissolution Apparatus

Abstract: This research was motivated by the lack of experimental data concerning the complex flow fields produced by the USP Paddle Method Dissolution Test Apparatus, which influence the reproducibility and sensitivity of the resulting dissolution data.A one-component He-Ne fiber optics laser Doppler anemometer and a conditional sampling computer data acquisition provided unique three-dimensional fluid velocity measurements in most regions of the fluid inside the vessel. Tangential velocities which are predominant in magnitude decrease as a function of distance from the paddle to the liquid surface. Low magnitude circulation patterns in the axial direction exist with little Interaction between the fluid above and below the paddle. The radial velocity component also exhibits a low magnitude. In the vicinity of the paddle, a periodic fluid motion produced by the wake formed behind the paddle exists. Close to the bottom of the vessel, tangential fluid velocities were approximately equal to solid body rotation...

Apparatus for underwater exercise

Abstract: Underwater exercise apparatus includes at least one paddle, which is coupled to an axle causing the paddle to rotate in response to rotation of the axle. When under water, the paddle produces resistance to the rotation of the axle. In a preferred embodiment, the paddle may be made part of a treadmill for underwater use for varying the resistance to movement of the treadmill belt. In a treadmill embodying the invention, the axle of one of the rollers supporting the belt, which roller is tightly coupled to the belt, extends beyond the side edge of the belt. Directly connected to the extending end of the axle, for rotation therewith, is a paddle. In use, movement of the belt causes rotation of the paddle through the water. The water resists the movement of the paddle which, in turn, resists movement of the belt. The amount of resistance to belt movement is a function of the speed of movement of the belt and the size of the paddle which is designed to be readily changed as desired. The paddle may include means for varying the pitch of the paddle(s). The paddle may also be used in combination with numerous other types of underwater exercise apparatus such as, for example, a bicycle type apparatus.

Water paddle and flotation device for use by swimmers

Abstract: An improved paddle assembly and flotation device for use by a swimmer to assist in propelling the swimmer through the water. The paddle assembly is of the type which has a central float and a pair of paddles supported by a rod extending outwardly from the float. The improvement of the present invention comprises a hollow, rigid thermoplastic ball having two openings and a hollow tube passed through the two openings and affixed to the openings in a watertight manner. Then, a rigid tube extends through the hollow tube, and the rigid tube extends outwardly and is affixed to a pair of paddles at each end of the rigid tube. Preferably, there are two or more handles affixed between the thermoplastic ball and the paddles.

Die-mounting paddle for mechanical stress reduction in plastic IC packages

Abstract: An improved die-mounting paddle for mechanical stress reduction in plastic integrated circuit packages. The paddle, which is incorporated in a leadframe, comprises multiple, coplanar floating sub-paddles, each of which is attached to a support beam by a flexible coil, thus allowing a large die to remain firmly attached to each of the pads, in spite of differences in the coefficients of expansion between the leadframe paddle metal and the die that might well result in bonding wire breakage or die breakage if a conventional single large paddle were utilized.

Asymmetric flexure for pendulous accelerometer

Abstract: An improved accelerometer of the type that includes a proof mass (34, 24, 164, 170) suspended from a support (32, 172) by one or more flexures (36, 174), such that the proof mass can pivot with respect to the support about a hinge axis (HA). The proof mass includes a paddle (34, 164) attached to the flexures, the paddle having first (166) and second (168) paddle surfaces. The coil (170) is mounted on the first paddle surface, and the accelerometer includes a stator (42, 162) for mounting the support and for forming a magnetic circuit with the coil. The improvement comprises positioning the flexures such that a plane containing the hinge axis and the center of mass (180) of the proof mass is parallel to one of the paddle surfaces, and is closer to one paddle surface than to the other paddle surface. In a preferred arrangement, the plane containing the hinge axis and the center of mass is approximately coplanar with one of the paddle surfaces and with the flexures.

Launch container for multiple stores using piezo electrically-actuated paddle assemblies

Abstract: A multi-store launcher has each store in a stacked sequence releasably heldy a swinging paddle assembly against the ejection force of negator springs. Each paddle assembly carries a burn resistor that is wired to maintain the paddles in a locked position. A pneumatic pulse from the transporting vehicle causes electronic circuitry to make the resistor fail, freeing the paddles to open away from the store and thereby allowing it to be ejected by the negator springs.

Hog scraper paddle

Abstract: Disclosed is a hog scraper paddle for dehairing and polishing hog carcasses and the like, including a resiliently flexible paddle body having a substantially rectangular block shape, said body being made of an easy-to-clean, substantially non-porous thermoplastic material having a softening temperature endotherm peak greater than about 350° F. and a flexular modulus value between about 100 and 150,000 psi preferably either between about 100 and 6,000 or between about 30,000 and 150,000 psi. The paddle body may include a mounting means and openings therein for receiving the mounting means. At least one scraper blade may be attached to the paddle body for dehairing or polishing a carcass. Also disclosed is a method for making a hog scraper paddle of thermoplastic material by injection molding, compression molding, or blow molding. Post manufacturing treatments, such as annealing and heating are also disclosed.

Pull paddle for swim training

Abstract: Disclosed herein is a pull paddle for swim training which includes a paddle having a leading edge and a trailing edge and a longitudinal centerline extending from the leading edge to the trailing edge. The paddle is tapered so that the leading edge is substantially narrower than the trailing edge. The paddle has a relief in the trailing edge defining a wrist detent. The paddle has a center of force no more than 11/2" from the wrist detent along the longitudinal center line and includes structure for selectively gripping the paddle.

Propulsion mechanism for a boat

Abstract: A propulsion mechanism for a boat includes a boat body; a bar being laterally provided on the boat body; a sliding block being provided on and slidable along the bar; a paddle being pivotally disposed on the sliding block and being submerged in water on which the boat body is floated; a restraining device being coupled to said paddle and being rotated in concert with the paddle; the restraining device limiting a rotatable range of the paddle; and two pulling rings being fixed to the sliding block. The sliding block is drawn to move laterally and reciprocally when the pulling rings are alternatively and reciprocally pulled by a user, so that the paddle moves relative to the water and so that a reactive force is produced to propel the boat body.

Rattling device for attracting animals

Abstract: A hand held device comprising a striker paddle (24) loosely contained within a mortise opening (20), and upon manipulation of the striker paddle (24) against the edges and fixed limits of the mortise opening (20) resonant sounds, effective for rattling in deer, elk, and like animals are emitted.

Method of making a mixing tool

Abstract: A method of making a tool defined by an elongate shaft medially mounted to a paddle at its lowermost terminal end. The paddle includes an elastomeric body formed of a flexible memory retentent material, including reinforcing members mounted at each side and lower terminal end of the paddle to permit enhanced scraping and removal of fluid components from within a container during use. The organization includes a framework mounting the side blades, with the lower blades spaced from the framework subsequently encased by the elastomeric material.

Paddle ball game with net like sheet with completely surrounded opening

Abstract: A game played with a net placed vertically dividing the playing area into at least two sides. The net has a completely surrounded opening, comprising the playing zone, allowing an object and or projectile to be volleyed through the opening in the net, back and forth between the players on opposite sides of the net.

Adjustable agitator used for small mouth reactor

Abstract: The utility model discloses an adjustable agitator used for a small mouth reactor. For the existing agitator, the size of the agitating blade is limited by the diameter of the mouth of the reactor; though the existing agitator is provided with a movable paddle, the length of the paddle is fixed so that the agitating area can not be adjusted and the material can easily be deposited at the bottom. The utility model discloses an adjustable agitator comprising an agitating shaft (1), a slider (2), an adjustable rhombic agitating paddle blade (3), and a rotary paddle blade (4). The utility model has the advantages of simple structure, freely going in and out the small mouth, large adjusting range of the agitating area, and good agitating effect. The utility model can not easily form dead angle and the utility model is especially suitable for stick the materials. The utility model can be used for reaction of two materials whose specific weights are greatly different. If the utility model is used for the small mouth reactor with accessories of an air guiding pipe, a sampling pipe, a thermometer, etc., user can find that the utility model can become more practical and convenient.

Paddle toss ball game

Abstract: A game device and method of playing same. The game/toy device generally comprises a paddle wheel which is rotatably mounted between two spaced apart support posts that are vertically mounted to a playing court. An alarm system is coupled to the paddle wheel to signify or sound a signal indicative of a winner. Competing players take turns of tossing a ball at the paddle wheel from opposite side of the target paddle wheel. Each player attempts to rotate the paddle wheel a number of turns to raise his respective scoring weight up to a sensor. Activation of the sensor energizes the win signal.

Solid waste shredder

Abstract: A trash shredding device (10) includes an annular drum (41) which carries vertically spaced segmented blade members (47) in tracks (48) formed therein. A paddle (44) rotates within the drum (41) with its radially outer end (46) being adjacent to the blade members (47). Trash is introduced at one axial end of the paddle (44) and is forced against the blade members (47). The trash shredded by this action is discharged from the device (10) at the outer axial end of the paddle (44). The average overall sharpness of the blade members (47) is maintained by placing a new blade member (47) in the first of the tracks (48) while at the same time removing the oldest of the blade members (47) from the last of the tracks (48).

Feed metering mechanism

Abstract: A metering device for measuring bulk particulate material, such as feed, includes a hollow casing having a paddle gate positioned therein. Rotation of the paddle gate dispenses a predetermined weight of particulate material into the outlet port of the device. A monitoring mechanism monitors the back up of dispensed material in the outlet port stopping the flow of material into the metering device should the backed up material reach a predetermined level, thus avoiding jamming of the paddle gate.

Impeller assembly with adjustable impeller

Abstract: An impeller assembly having a housing supporting a rotatable impeller. The housing has a bottom entrance opening and a top exit opening separated by a curved back wall. A liner of low friction and abrasive resistant plastic material covers the inside of the back wall. The liner is removeably mounted on the housing so that it can be replaced without taking the housing apart. The impeller has a plurality of pivoted paddle assemblies. Each paddle assembly has a generally U-shaped liner of low friction and abrasion resistant material. The impeller is adjustably mounted on the housing to provide a minimum of clearance between the liner and the outer ends of the paddle assemblies as they rotate within the housing.

Apparatus for refolding continuous from stationery

Abstract: Apparatus for producing continuous form stationery by refolding a strip of paper along transverse lines of weakening formed therealong. Successive lines of weakening formed in the paper are distributed in substantially opposite directions by a chute. The distributed paper is received and folded by rotating paddle wheels.

Vorrichtung zum gruppenweisen uebertragen von suesswarenprodukten von einem kontinuierlichen sammelfoerderband zu einem zellenfoerderband

Abstract: A transferring device for transferring pastry articles (2) from a continuous storage conveyor belt to a hollow receptacle conveyor belt, and filling a predetermined number of receptacles in groups separated by an unfilled receptacle, comprises a plurality of paddles (12) carried on an endless chain, each paddle (12) being movable out of the way by the action of a drive means from an operative position where it interferes with said articles (2) to an inoperative position where it is away therefrom. The transferring device has a compact construction and is uncommonly versatile in operation. The drive means comprises an endless chain driven in synchronism with the paddle carrying chain and carrying a cam 16 which engages a roller 29 associated with the paddle 12 to pivot the paddle to an inoperative position.

Low noise type sheet operating apparatus

Abstract: PURPOSE: To reduce the noise caused by knocking the support surface of a paddle by arranging a pin in the blade of a paddle wheel and changing the contact angle of a sheet support surface with a blade by the contact of the deflector arranged on the front surface of the paddle wheel with the pin. CONSTITUTION: A deflector fork 30 is arranged on the front surface of a paddle wheel 20 having blades 21 supported by a hub installed on a support shaft 15. In this fork 30, straight surfaces 31, 32 with a different slope and a curved surface 34 are formed continuously. A projection 22 is formed on each blade 21 and a delrin pin 23 is projected. When the paddle wheel 20 is rotated in an arc 17 in an arrow mark 16 direction, the pin 23 is brought into contact with the fork 30 and the blade 21 is bent before contacting with the surface 41 of a tray 40. When the tip of the blade 21 is brought into contact with the tray surface 41, the pin 23 is separated from the fork 30 end and the blade 21 is operated normally. Therefore, the blade 21 is come into contact with the tray surface 41 by the angle by which a collision sound become small.

Semiconductor processing apparatus for creating back pressure within a quartz furnace tube

Abstract: Disclosed is a semiconductor processing furnace flow restricting apparatus for insertion into a longitudinally elongated semiconductor wafer processing furnace to create back pressure to increase residence time of processing gases within the furnace. The apparatus comprises: at least two ring-like members, one of the ring-like members being concentrically mounted inside the other, the ring-like members each having a fore longitudinal end and an aft longitudinal end, the two ring-like members each having a varying diameter which tapers inwardly from the fore longitudinal end to the aft longitudinal end; and a lower mounting assembly having a male fitting cross sectional size and shape which is complementary to an upward female size and shape of the elongated wafer paddle, the male shape of the mounting assembly being supportable within the female shape of the wafer paddle to laterally position the two rings when the paddle and apparatus are received within a semiconductor wafer processing furnace.

Uni-cable defibrillator paddles

Abstract: A uni-cable paddle system comprising two paddles with contact surfaces, and a main cable connected at one of its ends to one of the paddles, e.g., the sternum paddle. An inter-paddle cable connects the sternum and apex paddles. The main cable has two high-voltage (HV) wires. One of the HV wires is connected to the contact surface of the sternum paddle; the other HV wire is connected to the apex paddle's contact surface via a HV wire in the inter-paddle cable. Control switches and display indicators may be located on the paddles; the wires for these additional functions may be integrated into the main and inter-paddle cables.

Recovering zinc from dross from hot dip galvanising plant - by loading dross into vessel and milling between paddle, fixed paddle and plates and withdrawing lighter dross

Abstract: Zn dross from hot-dip galvanising plant is treated for recovery of metallic Zn in an arrangement of a vessel dipping vertically into the molten Zn and contg. a shaft connected to a thermally protective coupling and rotated by a geared motor to turn a flat elliptical paddle. The Zn dross is loaded into the vessel and is milled between the paddle, fixed paddle and plates. The lighter dross collects together and is withdrawn through a pipeline to a cyclone. ADVANTAGE - Sepn. can take place during the galvanising process.

Calcined pottery bean vermicelli-making machine

Abstract: The present invention relates to a calcined ceramic vermicelli-manufacturing machine which uses starch as a raw material. It consists of a transmission system, stirring paddle, partition jacket heating device, feeding and discharging mechanisms. It is characterized by that the stirring paddle with two blades is mounted on the transmission system. The stirring paddle is in the form of a plane helix as viewed from above, and is fitted with the partition jacket heating pot. Its intersecting line is a bidirectional spiral line. The feeding mechanism is placed in the lower position of the stirring paddle. The discharge mechanism is a double-start screw conveying mechanism, and the steam-injecting annular tube is placed in the upper position of the vermicelli machine. The main procedures of making vermicelli can be integrated into one machine and can be continuously carried out by use of the said invention, therefore it raises the function of the vermicelli machine.

Solar battery power unit

Abstract: PURPOSE:To easily adjust a power generation capacity by providing a stopper mechanism, which holds a panel in an opened condition, in a hinge side of a plural number of the panels constituting a solar battery paddle, in the case of a device spreading the solar battery paddle through a mast by actuating a canister CONSTITUTION:A solar battery power unit arranges in both sides inner and outer boards 3 and 4 serving as a long scale supporter unit, having a foldable solar battery paddle formed by arranging a plurality of sheets of strip-shaped blanket panels 5, pasting a solar battery element, connected by a hinge between the inner and outer boards And by advancing a mast 2 by a canister 1, the solar battery paddle is spread, here one side of each panel 5 is guided along a cable 6 In this case, a stopper mechanism, holding the panel 5 in an opened condition, is constituted by fixing a spindle-shaped block 9 to the cable 6 while by mounting an elastic plate 10, engaged with the spindle-shaped block 9, to a cable guide 7 mounted to a hinge part of the panel 5

Solid waste shredder and method of operation

Abstract: A trash shredding device (10) includes an annular drum (41) which carries vertically spaced segmented blade members (47) in tracks (48) formed therein. A paddle (44) rotates within the drum (41) with its radially outer end (46) being adjacent to the blade members (47). Trash is introduced at one axial end of the paddle (44) and is forced against the blade members (47). The trash shredded by this action is discharged from the device (10) at the other axial end of the paddle (44). The average overall sharpness of the blade members (47) is maintained by placing a new blade member (47) in the first of the tracks (48) while at the same time removing the oldest of the blade members (47) from the last of the tracks (48).

Melting test apparatus

Abstract: PURPOSE: To investigate the solubility of a substance in a liquid so as to analyze the solubility of a medical tablet in the solution by providing a rinsing stand, a testing stand, and a means which can move between the stands. CONSTITUTION: The dissolution testing device is constituted of a testing stand 13 composed of a pedestal 2 housing a driving unit, a column 3, a bridge 4, a paddle 9, and a suction pipe 10, a rinsing stand 14 composed of a bridge 15 and a column 16, a mobile device 6 which goes and comes back in the directions shown by the arrows 12, an aqueous solution 7, a measuring container 8 for keeping a liquid containing a substance to be tested for solubility dissolved in the liquid, a paddle 9, a suction pipe 10, a filter 11, a rinsing paddle 17, a nozzle 18, a hollow shaft 19, a washing nozzle, a rinsing container 21, and a filter removing means 22. The means 22 which is interlocked with the mobile device 6 is installed to the device 6 and the filter 11 can be engaged at the position where the device 6 exists by means of the filter removing means 22.

Instrument for inserting lens into eye

Abstract: PURPOSE: To reduce significantly a possibility of damaging a lens during its inserting work into an eye, by providing a movable means between a paddle means capable of getting a contact with a lens in an unfolded state and a long tube receiving thereinto a paddle's flexible element in a folded state. CONSTITUTION: A plug 36 formed into a unit with a slider 20 can move toward an axial direction in an inside space 28. The hand-side end 39 of a long element 40 is fixed in a penetrated hole 38 extended toward the axial direction, whose tip is fixed to a flexible paddle 12. When the paddle 12 is folded and accommodated into the inside space 24 of a tube 14 and when moving a slider 20 toward the tip direction of a tip element 30 in a slot 18, the paddle 12 moves toward a tip opening 23. Then, moving the plug 36 toward the tip direction up to getting a contact with the tip element 30 results in a state of having the paddle 12 completely get out of the inside space 24 of the tube 14.