Showing papers on "Paddle published in 1994"

Continuous gum base manufacture using paddle mixing

Abstract: A method of continuously making chewing gum base employs low pressure, adequate residence time, and the flexibility of selectively feeding different ingredients at different locations on the mixer. The method involves the use of a paddle mixer, characterized by a plurality of paddles mounted on a longitudinal rotating shaft, preferably mounted on two parallel co-rotating shafts. The paddles cover at least about 40 percent of the active length of the shafts. This configuration provides for significant residence time in the mixer and low pressure gum base manufacture.

Mammography breast compression device and method

Abstract: A breast compression device is disclosed for use in a mammography system A paddle support frame is provided which is slidably connected to a system arm of the mammography system The paddle support frame is located between the x-ray tube and the detector of the mammography system A compression paddle is pivotally connected within the support frame by a pivot connection The pivot connection is located on a chest wall side of the support frame The chest wall side is opposite the system arm The compression paddle is substantially horizontal to the detector and is rotatable around the pivot connection The compression paddle may include a breast portion which is substantially parallel to the detector and a chest wall portion which is substantially vertical to the detector The compression paddle may also have a contoured shape where the chest wall portion is angled away from the system arm and the breast portion is contoured to mimic the contours of the breast

Apparatus for thermally coupling a heat sink to a leadframe

Abstract: A molded plastic package for an integrated-circuit die includes a lead frame having a central die-attach paddle. One side of the die-attach paddle has an integrated-circuit die fixed thereto. A heat sink member is resiliently fixed to the other side of the die-attach paddle using a layer of viscous thermal grease between the heat sink member and the other side of the die-attach paddle. One or more holes are formed in the lead frame and are engaged by corresponding studs on the heat sink. The stud has a shoulder portion which engages the lead frame to prevent the stud from further passing through the hole in the lead frame.

Scraper for planting mechanism gauge wheel

Abstract: A grain drill row unit includes a furrow opening device that opens a furrow into which seeds are deposited as the machine advances, and a combination gauge and press wheel rides along the ground behind the furrow opening device to firm the soil around the seed and to control the depth at which the furrow opening device operates. A paddle type scraping wheel is rotatably mounted on a support above the gauge wheel axis, the scraper wheel having edges at the outer ends of the paddles, generally parallel to the axis of the scraper wheel but angled relative to the axis of the gauge wheel, the scraper wheel edges engaging material on the periphery of the gauge wheel and being rotated by contact with said material so that the scraper wheel edges scrape the periphery of the gauge wheel.

High speed labeler

Abstract: A labeling assembly for applying labels carried on a substrate to a sequential series of moving documents is provided. The assembly transports the document in a generally vertical end on end orientation down a conveying path and peels the label from the substrate to position the peeled label in a generally vertical orientation. The labeling assembly also includes a paddle having a front surface with vacuum ports for attaching and releasably retaining the peeled label on the front surface. An actuating mechanism pivots the paddle to force an end of the retained label into contact with the document. Upon contact, the downstream end of the retained label adheres to the document and the label is pulled off the paddle. As the label is pulled off the paddle the contact between the end of the paddle presses the label against the document.

Container closure of medical tests

Abstract: A closure for a medical specimen test jar includes a threaded closure ring and a separate, connected but freely rotatable sealing gasket on the underside of the ring. An agar paddle is secured to the closure via the gasket at the inside of the closure ring, the gasket material being relatively rigid, and the connection with the agar paddle being such as to retain the agar paddle securely. A matrix of posts is included on each side of the agar paddle, and in the production of the paddle the posts and a perimeter rim around each side of the agar paddle are staked down by heat and pressure to form overhanging flanges on the posts and an undercut rim which serve to retain the flexible agar mass in place on the test paddle. At the center of the closure is a needle-penetrable septum for receiving injection of blood or other specimens. The closure retains a vacuum in the medical specimen jar and still allows removal of the closure without requiring excessive twisting force, by use of the two-piece assembly, which eliminates the need to overcome static friction of the gasket on the container finish while unscrewing the closure ring.

High-speed paddle diverter

Abstract: An apparatus and method for laterally diverting or shunting articles conveyed along a conveyor. An am or paddle is mechanically coupled to a rotating cam which drives the arm from a first or resting position parallel to the conveyor to a deflecting position across the conveyor at a first velocity profile and from the deflected position back to the resting position at a second, greater velocity profile in a single revolution of the cam. Velocity profiles can be optimized for the application by specification of the cam's geometry. Cycle times of 400 milliseconds, or 150 cycles per minute, are possible.

Single portion liquid dispenser

Abstract: A liquid dispenser is provided for dispensing fluid condiment materials, such as ketchup, mustard and mayonnaise as well as other liquids such as medicated salves, lotions and ointments. The dispenser includes a tubular body with a spherical plunger element connected to a spreader paddle member disposed within a tubular body. Upon external manipulation of the tubular body, the spherical plunger and spreader paddle arrangement is urged toward a dispenser nozzle for release of condiment filling contained therein. The sanitary spreader paddle simultaneously protrudes from within the tubular body as condiment filling is being evacuated. As a result, the user may evacuate the entire volume of condiment filling within the dispenser as well as spread the deposited condiment filling on a food article to be eaten. In a medical application of the invention, the dispenser includes an integral applicator swab which is connected to the spreader paddle and resides within the plunger. The spreader paddle is separated from the plunger to expose the cleansing swab for use on the body.

Paddle mixer with mixing drum mounted on transportable frame having paddles with rubber scraping elements

Abstract: Improved paddle mixer, including a stationary drum solid to a support frame, with a vertical shaft engaged with a motor-reducer unit and provided with a plurality of transverse arms to each of which at least a paddle is fixedly or otherwise rotatively connected, wherein each of the paddles, being fixed with respect to the relevant support arms, is made up of two like plates disposed at the free end of the corresponding arm and between which a rubber element is interposed so that, by the rotation of the shaft, that is, during the blending of the materials introduced inside the drum, the rubber element provides for scraping the side or respectively bottom wall of the drum.

Hand operated paddle

Abstract: A paddle for use with a hand and forearm of a user is provided. The paddle has a paddle blade of a length shorter than its width, and generally encompasses an area approximating the span of the hand of a user. A support which provides support for the wrist extends from the paddle blade to a point near a user's elbow, with an opening in the support through which a user inserts a hand. A cover surrounds the hand and secures the paddle blade to the user's hand. As such, the user may rest an opened hand against the blade while using the paddle.

“Mini paddle” for monitoring the fibular free flap in mandibular reconstruction

Abstract: The use of a "mini" skin paddle to monitor the fibular free flap for mandibular reconstruction is described. The paddle is easy to inset, can be excised later under local anesthesia, and yet is adequate for postoperative monitoring.

Detented paddle blade switch assembly

Abstract: A lever type switching assembly having a pair of generally U-shaped spring blade contact members disposed in oppositely spaced-parallel arrangement for alternate actuation by a common paddle lever frictionally contacting the contact members for effecting switching upon user movement of the lever in a clockwise direction. Each contact blade member has one end pivoted on a center contact for rocking motion to cause the U-shaped region and the opposite end of the blade member to make and break contact with side-contacts on opposite sides of the center contact. Overtravel of the paddle in one direction after actuation causes the contact blade member to break from the side contact and make contact with an auxiliary contact. A spring biased plunger on the paddle lever engages a detent surface on the base to give a tactiley discernible indication.

Method of packaging a power semiconductor device

Abstract: A method of packaging a power semiconductor device is disclosed, comprising the steps of preparing a lead frame including a 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.

Laboratory magnetic mixer paddles incorporate flat metallic disc or plate

Abstract: A mixing assembly consists of a base (1) within which an assembly generates a rotating magnetic field which extends to within the contents of a non-magnetic vessel (6) resting upon the base. A magnetic mixer paddle (8) within the vessel (6) is rotated by the magnetic field below. The novelty is that the magnetic mixer paddle (8) incorporates a flat disc or plate (8; 16,17) which is magnetised vertically with respect to the plane of the disc or plate. The disc or plate is made of samarium-cobalt or neodymium-boron.

Paddle blade system for utilising wind or water power to produce e.g. electric power - is designed, e.g. as frameless, large area kinetic plates arranged respectively against open carrier frames in any number around paddle wheel shaft

Abstract: The paddle blades (3) are located in such a way that their juxtapositions are arranged, e.g. across hinge connections, in the region of the outer ends of the frames (2) so that the swinging in or out of the paddle blades towards or away from the axis (1) is facilitated. In the swung out position no energy is taken. The paddle blades are hinged/pressed by the pressure of the kinetic energy in a half circle rotation against the respective carrier frame (2), thus they are power effective. In the other half circle rotation (opposite half circle), they swing out in the centrifugal direction of the kinetic energy so that with opened carrier frames the blades are not power effective, namely, corresp. opposite running forces are minimised. ADVANTAGE - Cost effective utilisation of kinetic wind and water energy. Any size of system can be incorporated in different machines. Wide environmentally friendly application. Can be coupled to generator to produce electrical power.

Mixing-cutting paddle

Abstract: A paddle is used for mixing and cutting. A hub is at one end of the paddle for connecting the paddle to a planetary mixing machine. The paddle includes a plurality of interconnected arms in a fan-like array which define a plurality of slots between adjacent arms. The arms include a plurality of apertures formed therethrough. Outermost ones of the arms are positioned at opposite sides of the paddle. A plurality of wire members are secured at their opposite ends to the outermost arms. The wire members extend through the apertures formed in the arms and across the slots defined between the arms. The combination of the arms, the wire members extending through the apertures formed in the arms and across the slots defined between the arms, forms a plurality of multidirectional mixing and cutting components of the paddle. Cutting efficiency of the paddle relates to paddle size, mixing speed, mixture density, wire size, number of wires or distance of the wire members from the rotational axis of the paddle.

Combined centrifugal and paddle-wheel side thruster for boats

Abstract: A thrust propulsion mechanism (10) for a boat (12) includes an outlet conduit (22) extending athwartships from a first outlet port (16) to a second outlet port (16') in the hull (18). A paddle-wheel impeller (24) is mounted within the hull for rotation about an axis of rotation (34) by a reversible motor (30). A circumferential paddle (58) portion of the paddle-wheel impeller extends into an aperture (26) defined centrally in the top wall of the outlet conduit. An inlet conduit (20) extends athwartships from a first inlet port (14) to a second inlet port (14'), and intermediate thereof supplies water to the center of the paddle-wheel impeller. Water is discharged from the paddle-wheel impeller through one of the outlet ports, dependent on the direction of rotation of the paddle-wheel impeller, to create thrust by a combined paddle-wheel and centrifugal pump action.

Apparatus for the treatment of solid, liquid and/or gaseous materials

Abstract: The invention relates to an apparatus for treating solid, liquid and/or gaseous materials with an activator with at least three coaxially arranged paddle rows (3, 4, 5) which are drivable in a contrarotating manner with beater paddles (6) having set angles of incidence (6), with the circumferential speed of the outer paddle rows (3, 4, 5) being between 70 m per sec. and 160 m per sec. In order to increase the extent of the achievable activation of the particles of the material and thus the performance of the apparatus and the quality of the manufactured products it is provided that the width (b 1 , b 2 , b 3 ) of the paddle rows (3, 4, 5) decreases outwardly by at least 2%, preferably by at least 5% and maximally by not more than 10%.

Safety skin hook and method

Abstract: An instrument (10) for holding skin (18) at an incision site having two pivotally connected elongated members (1, 6), each member (1, 6) having releasably engageable handles (2, 7) while one member has a hook (15) and the other member has a paddle (9). The hook (15) can be moved into and out of proximity with the paddle (9) for shielding the hook (15) when it is in close proximity to the paddle (9).

Hand propulsion device for a paddle boat

Abstract: A hand propulsion device for a paddle wheel boat has a cranking mechanism of handles turning a sprocket. The sprocket drives a chain, which is mounted between the first sprocket and a second sprocket. The chain, in part, turns the second sprocket, which turns an axle and then, in turn, turns the paddle wheel. The device allows handicapped person, who cannot drive the boat with foot power, to operate a paddleboat and enjoy water recreation.

Refuse packer assembly

Abstract: A device for packing or compressing refuse material into a container, which my be mounted on a vehicle or installed at a fixed site. The device includes a paddle mounted for oscillatory angular motion about a generally vertical axis in a hopper assembly. The paddle is oscillated by a crank arm mounted on the same axis and in a fixed angular relationship with the paddle. The crank arm, in turn, is driven by a pair of extensible devices, such as hydraulic cylinders, which are pivotally coupled to the crank arm and pivotally anchored by their other ends to selected points on the hopper frame. The selection of anchor points for the hydraulic cylinders assures that they act in unison over much of the range of oscillatory motion of the paddle, compressing the refuse repeatedly on alternate sides of the container. In one version of the device, the crank arm and the paddle are aligned in identical angular orientations and the cylinders push in unison to compress the refuse. In another disclosed embodiment, the crank arm and the paddle are aligned in diametrically opposite directions and the cylinders push in unison to compress the refuse.

Air diffusing stirrer for reaction tank

Abstract: PURPOSE: To enhance the dissolving efficiency of oxygen into waste water by extending the moving distance of diffused air bubbles up to the surface of the water by rotating an air diffusing means along with the paddle blades arranged to the bottom part of a reaction tank to diffuse air. CONSTITUTION: A tubular rotary hollow shaft 116 is supported on the upper wall 122 provided at the central part of the upper opening of a reaction tank 110 in a rotatable manner by a shaft stand 124 and suspended toward the bottom part of the reaction tank 110. Upper and lower paddle blades 130, 132 are provided to the upper and lower positions of the rotary hollow shaft 116 suspended into the reaction tank 110 and rotated by a motor 120. Air pipes 136 are provided to the lower end opening of the rotary hollow shaft 116 along the lower paddle blades 132 so as to communicate therewith at one ends thereof. Air diffusing pipes 112 branched on both sides in a horizontal direction are provided to the air pipes 136 as air diffusion means and the stirring and aeration of waste water are performed at the same time by air bubbles blown out of air diffusion holes 112a.

One-dimensional motion tailoring for the disabled: A user study

Abstract: The Tailor project allows physically disabled users to provide real-time analog input to computer applications. We use a PolhemusTM tracking device and create a custom tailored mapping from each user's best range and type of motion into the analog control signal. The application is a simple video game based on Pong, where the analog input controls the position of the player's paddle. A group of able-bodied subjects was able to correctly hit the ball with the paddle 77% of the time, and a comparison group of children with cerebral palsy performed at the 50% level. More than half the disabled users were able to perform at a higher level than the worst able-bodied user.

Improvements to the structure of paddles (bats) for playing paddle or paddle tennis

Abstract: Improvements to the structure of paddles for playing paddle or paddle tennis, the structure of which is contained in an oval laminated wooden frame to which a thin sheet of elastomeric material adheres, covered on its faces with a sheet of plastic material reinforced with glass fibres, all the above being enclosed by a perimeter piece with a U-shaped cross section which has between its arms a laminar piece in the shape of an arrowhead, the edge of which is included in a groove formed in the frame, improving the elastic behaviour when hitting the ball, absorbing vibrations and therefore improving the strike, the effects and the damping of the ball against the paddle.

Sanitary bug catcher

Abstract: The invention is a hand tool for killing and disposing of bugs that walk, crawl or hop and includes an elongated handle with a trapezoidally shaped paddle on one end. The handle is mounted centrally on one side of the paddle. The other side of the paddle contains spikes one half inch in length and spaced with a density of one hundred per square inch. The handle is reinforced so that an impaled bug will be dislodged with a sharp rap on the side of a trash barrel. The entire tool is a single piece of molded plastic.