Showing papers on "Paddle published in 2005"

A learning approach to robotic table tennis

Abstract: We propose a method of controlling a table tennis robot so as to return the incoming ball to a desired point on the table with specified flight duration. The proposed method consists of the following three input-output maps implemented by means of locally weighted regression: 1) a map for predicting the impact time of the ball hit by the paddle and the ball position and velocity at that moment according to input vectors describing the state of the incoming ball; 2) a map representing a change in ball velocities before and after impact; and 3) a map giving the relation between the ball velocity just after impact and the landing point and time of the returned ball. We also propose a feed-forward control scheme based on iterative learning control to accurately achieve the stroke movement of the paddle as determined by using these maps. Experimental results including rallies with a human opponent are also reported to demonstrate the effectiveness of our approach.

Semiconductor package with increased number of input and output pins

Abstract: In accordance with the present invention, there is provided a semiconductor package which includes a generally planar die paddle defining multiple peripheral edge segments and including at least two slots formed therein and extending along respective ones of a pair of the peripheral edge segments thereof. The semiconductor package further comprises a plurality of first leads which are segregated into at least two sets disposed within respective ones of the slots included in the die paddle. In addition to the first leads, the semiconductor package includes a plurality of second leads which are also segregated into at least two sets extending along respective ones of at least two peripheral edge segments of the die paddle in spaced relation thereto. Electrically connected to the top surface of the die paddle is at least one semiconductor die which is electrically connected to at least some of each of the first and second leads. At least portions of the die paddle, the first and second leads, and the semiconductor die are encapsulated by a package body, the bottom surfaces of the die paddle and the first leads being exposed in a common exterior surface of the package body.

Multiple station inventory control system

Abstract: An inventory control system may include one or more paddles, a position of which is changed by adding or removing items to be inventoried, a plurality of encoder strips, each connected for motion with a paddle, and a plurality of detectors at least some of which are each responsive to the motion of an encoder strip to determine the addition or removal of the items. The encoding strip may be in the form of a loop mounted for rotation or a linear member such as self coiling strip. An alternate embodiment may include an illumination target mounted for motion with each paddle and a light source and detector for determining motion of the target.

Floating, water current-driven electrical power generation system

Abstract: A floating, water current-driven electrical power generation system has a hull supporting one or more paddle wheels. The unit is tethered in a stream or river so that the moving water turns the paddle wheel coupled to an electrical generator. A transmission matches stream flow conditions to the electrical generator. Stabilizing fins on the hull bottom help keep the hull properly aligned in the stream's current. Built-in leg structures are sized to prevent bottoming of the paddle wheel during periods of low water in the stream or river. Mounts are provided for an outboard motor useful for propelling the unit to a desired location. Larger versions of the system may be equipped with a boat mooring facility allowing a boat to propel the unit to a desired position in a stream or river.

Vacuum actuated end effector

Abstract: An end effector for a robot arm couples to the arm at a mounting fixture. The end effector includes a first paddle head assembly, the assembly including a paddle head and a solenoid controlling extension and retraction of the paddle head away from and toward the mounting fixture. In addition, the effector includes a vacuum region positioned in the first paddle head assembly adapted to receive a disk and coupled to an extendable vacuum arm. A method for operating a dual paddle end effector includes the steps of: connecting at least a first paddle head assembly including a paddle head to a robotic arm; positioning the arm adjacent to a disk in a carrier; and providing a vacuum suction to a vacuum region in the paddle head assembly sufficient to lift the disk into the vacuum region in the paddle head assembly.

Apparatus for holding and feeding product

Abstract: Apparatus for holding and feeding product includes a) a tray having a front end, b) a sidewall clip, carried by a first extremity of a sidewall, attached to the front end of the tray, c) a paddle clip attached to the front end of the tray, d) a third elongate abutment clip, carried by an abutment, attached to the first and paddle clips, e) a paddle mounted to the tray for reciprocal movement in opposition to the abutment, and f) a spring coupling the paddle clip to the paddle and biasing the paddle toward the abutment.

Integrated fluid sensing device

Abstract: A circuit board, which includes one or more sensors, is integrated in a fluid control device, such as a valve manifold and a base plate. The fluid control device selectively directs a fluid used to control pneumatic or hydraulic equipment. The sensors are used to measure physical characteristics of the fluid, such as flow rate, pressure, and temperature. A flow sensor includes a paddle and a support member. The paddle is disposed at least partially in an orifice and is displaced in response to fluid flow. The support member positions the paddle in the orifice and includes a plurality of strain gauges. The strain gauges are disposed on only one side of the support member and are mechanically stressed in response to the paddle being displaced by the fluid flow.

Paddle handle latch release device and spring latch system using same

Abstract: A paddle handle latch release device of a spring latch system includes a paddle handle member pivotally mounted in a pan housing, the paddle handle member including an actuating lever which extends below a floor of the pan housing; a spider member rotatably mounted to the underside of the floor, the spider member including latch arms extending from a hub and an operating arm in contact with the actuating lever; and a torsion spring which biases the operating arm against the actuating lever; the spider being rotated from an inactive positioning by the actuating lever when the paddle handle member is manually rotated from a lowered positioning to a lifted positioning, and the torsion spring returning the spider member to an inactive positioning and the paddle handle member back to a lowered positioning when the paddle handle member is released.

Non-leaded integrated circuit package system

Abstract: A non-leaded integrated circuits package system is provided including etching differential height lead structures having inner leads at a paddle height, providing mold locks at the bending points of the differential height lead structures, etching an elevated paddle at a same height as the inner leads, mounting a first integrated circuit on the elevated paddle, and electrically connecting first electrical interconnects between the first integrated circuit and the inner leads.

Paddle positioning system

Abstract: The present invention is directed to an article, system and method for determining and/or selecting the location of a toner engaging member in a developing agent device such as a toner cartridge. The article, system and method may be applied to a printing device such as a laser printer.

An agitator, a circulatory cleaning device attached to the agitator, and a circulatory line system comprising the circulatory cleaning device

Abstract: The agitator comprises a rotating shaft 3, and a flat paddle blade 4. The flat paddle blade has a bottom flat paddle blade portion 4a extending outwards from the bottom of the rotating shaft 3 and a rectangular upper flat paddle blade portion 4b extending upward from an upper part of each side end of the bottom flat paddle blade portion 4a. The dimensional ratio (b/a) of the blade diameter (b) of the bottom flat paddle blade portion 4a to the inner diameter (a) of the agitating vessel 2 is from 0.6 to 0.9, and the dimensional ratio (d/c) of the height (d) of an upper flat paddle blade portion 4b to the height (c) of the bottom flat paddle blade portion 4a is from 1 to 4. A passage 12 is formed inside the rotating shaft 3 and flat paddle blade 4 for passing a coolant medium therethrough.

System and method for managing a cable in a sever system

Abstract: A system and method for managing a cable in a server system. The system includes a first paddle card coupled to a first end of the cable and a first light emitting diode (LED) coupled to the first paddle card. The first LED turns on to facilitate a user in locating the first end of the cable. The system also includes a second paddle card coupled to a second end of the cable and a second LED coupled to the second paddle card. The second LED turns on to facilitate the user in locating the second end of the cable. As a result, the ends of the cable can be conveniently and reliably located in a server system having multiple identical cables.

Unsteady numerical simulation of the mass transfer within a reciprocating paddle electroplating cell

Abstract: Mass-transfer properties of a continuously reciprocating paddle reactor are investigated using computational fluid dynamic simulations. The flow induced by the paddle motion is modeled with a moving mesh assuming laminar flow. Spatial and temporal mass-transfer data are gathered over many paddle cycles under diffusion-limited conditions. Transient, numerical simulations of this type are computationally expensive, but can add insight into flow phenomena that are difficult to observe experimentally. It is shown that a major source of the agitation in a paddle cell is vortices shed from the paddle. This results in a mass-transfer limit that is periodic in nature and that may exhibit spatial variations related to the paddle wake. A simulation-based, mass-transfer correlation is presented that relates various design and operating parameters within a generic paddle reactor. The mass-transfer trends predicted by the numerical simulations are compared with experimental mass-transfer correlations found in the literature.

Switch with shaped face

Abstract: There is disclosed structure which overcomes the deficiencies with respect to prior art devices by providing a wiring device such as a switch having a paddle that pivots about its upper end and is biased to assume the same at rest position when either in its on position or off position. Repeated pressing and releasing the lower portion of the face of the switch paddle alternately closes and opens a set of contacts within the switch to alternately connect and disconnect a load form a source of electricity each time the paddle is pressed. Thus, regardless of whether adjacent switches are on-off switches or 3-way switches, they will always be in alignment. An on-off indicator such as a small light is provided to indicate to a user when the contacts of the switch are opened or closed. The paddle of the switch has a length-width ratio dimension that is proportioned to provide a finger contact surface of increased area to allow a user to more easily and quickly identify and operate a particular switch. The vertical axis of the switch has a surface of positive first differential, comprised of splines drawn between points of varying distance from a datum plane, and has along the horizontal axis a surface of a positive first differential and negative second differential, comprised of a combination of splines drawn between points of varying distance from the datum plane.

The snaptic paddle: a modular haptic device

Abstract: The haptic paddle was developed previously as an inexpensive haptic device for educational use, and has been applied to course topics such as dynamic systems and introductory controls. However, it has only a single degree of freedom, limiting it to very simple modeling and simulation exercises. Through modifications to the original haptic paddle design, a "snaptic paddle" has been created that allows two modular one-degree-of-freedom devices to be connected to form a single two-degree-of-freedom device that operates like a traditional joystick. The devices can also be used separately, creating a flexible, economical haptic interface for educational applications. The device successfully provides force feedback interaction, as will be shown in a demonstration at the World Haptics Conference.

Method and device for operating a horizontal plug-flow fermenter

Abstract: The dimensions of fermenters used in the fermentation of biogenic wastes for the purpose of producing biogas keep increasing together with the absolute amount in heavy solids in the biogenic wastes (9). As a result, the sediments on the bottom of the fermenter tank and the torque required for setting the agitator moving after a period of standstill increase, too. In order to solve this problem, the shaft (10) extending longitudinally through the fermenter is provided at the ends of the agitator arms (12) with paddles (13). These paddles (13), in the one direction of rotation convey matter, and in the other direction of rotation plough the matter. For this purpose, two shares (15) are disposed at an acute angle to each other and are formed onto the end of an H-beam (20). A scraper sheet (19) is welded to the lower end of the two shares (15). The paddle area is delimited by a paddle sheet (18). The front edge (16) of the two shares can be reinforced by a V-shaped profile.

Compression paddle for mammography systems

Abstract: Disclosed herein is a compression paddle comprising a paddle base 12; and a paddle wall 20 comprising a first side-wall 22; and a second side-wall 24; wherein the first side-wall 22 and/or the second side-wall 24 are disposed upon the paddle base 12 and inclined with respect to the paddle base 12 at an angle that is effective to permit an x-ray beam uninterrupted access to an object of interest located on an opposing side of the paddle base 12 from an x-ray source when an angle between a central axis of the x-ray beam and a vertical taken at an inner surface of the first side-wall 22 and/or the inner surface of the second side-wall 24 is about 15 degrees to about 75 degrees.

Devices for blending materials and bags and for use in such devices

Abstract: A device for blending materials and a bag for use in such devices. The device has at least one paddle (5) for acting on a sample and a carrier (2) against which a sample may be crushed by the paddle. The device is arranged to allow adjustment of the spacing between the paddle and carrier during operation. The bag (30) is suitable for use in such a device but can be used in other devices.

In-between toe massager or cleaner with spatulate extensions

Abstract: The present invention is a handheld and highly mobile device with paddle extensions adapted to be comfortably inserted at the same time between a user's toes. The paddle extensions can be moved in an up and down sliding motion for massage or cleaning of inter-toe surfaces. The paddle extensions provide massage in one embodiment and scrubbing or cleansing in another embodiment. In a cleansing embodiment, the invention device incorporates a readily cleaned or disposable glove that form-fits over the paddles. The glove is made of absorbent material with a smooth to coarse outside surface to facilitate cleaning and/or scrubbing.

Sculling boat assembly

Abstract: A sculling boat assembly is provided to control the traveling direction and drive a boat, and the sculling boat assembly installs a transmission mechanism on two hulls, connects an end of each transmission mechanism to a handle extended from the two hulls, connects another end of each transmission mechanism to a paddle rod extended from the tail of the boat, and connects an end of each paddle rod with an extension of a fin-shape member. Through the transmission of each paddle rod, a user applies a force onto each handle to drive the fin-shape member disposed on each paddle rod for the movements of pushing water outward and enclosing water inward, such that the water resistance is converted into a reaction by the soft and hard materials of the fin-shape member and its extension to drive the boat to move forward rapidly.

Means and Apparatus for Ergonomic Water Paddle with Dynamic Rotating Grip

Abstract: An improved paddle apparatus for kayaks, canoes, or like water craft having a plurality of hand grips mounted to allow dynamic rotation relative to the paddle shaft to allow the wrist to remain in a natural position while paddling and still allow full power to be transferred from the blade into the water. Also a means of paddling whereby the operator can paddle with greater power and control on either side of the watercraft without breaking either handgrip. A further improvement includes using the handgrip in the position perpendicular to the paddle shaft to determine the blade position by feel and steer with greater torque. An alternative embodiment includes rotation of the grip itself, further reducing the twisting of the wrists and other joints.

Kayak paddle with safety light

Abstract: A kayak paddle safety lighting system incorporated into a kayak paddle that may serve as a set of illumination or running lights more effective than current deck mounted running lights. The lighting system includes an operational switch located in the handle of the paddle, LEDs located in the paddles are preferably illuminated by activation of the switch and an included battery. In its preferred embodiment, the system includes a microcontroller which is programmed with a plurality of different operational lighting modes including steady dim and bright, intermittent flashing and distress signals as flashing the S.O.S. code. In a further preferred embodiment the components in the system are wireless, with the electrical communication being by means of an rf signal.

Vehicle side door handle, has paddle mounted on rotative shaft, and lever rotated by shaft to activate mechanical unit of door opening, where centre of gravity of handle is situated in plane perpendicular to paddle

Abstract: The handle has a paddle (2) mounted on a rotative shaft (1) that rotates a lever (3) to activate a mechanical unit of door opening. The centre of gravity of the handle is situated in a plane perpendicular to the paddle. The shaft has a rotation axis inclined at an angle lying between 0 and 90 degrees with respect to a horizontal axis of a door. An independent claim is also included for a side door of a vehicle.

Paddle wheel propulsion system and improved paddle used therewith

Abstract: A paddle wheel propulsion system includes a paddle wheel mounted for rotation about its horizontal axis for propelling a vessel, and for unlimited rotation about a vertical axis perpendicular to its horizontal axis for steering the vessel. The paddle wheel is also supported for limited vertical movement relative to the vessel. Reversible power drive is provided for independently controlling movement of the paddle wheel about its vertical and horizontal axes and for elevating and lowering the paddle wheel. Improved paddles are concave on both sides to provide maximum efficiency in both direction of rotation about the horizontal axis.

Board lumber position fence

Abstract: Discloses a positioning fence for use in lumber saw mills that facilitates automated positioning of lumber for cutting. A continuous moving track loop has a plurality of paddles laterally positionable across the width of the track. Each paddle has a brake to hold the paddle in position. A positioning cam releases the brake to align each successive paddle to a desired lateral offset and a zeroing cam resets each paddle to a zero position.

Paddle wheels in a flow of water

Abstract: A paddle wheel (16) is stationarily positioned to penetrate the surface of a body of water. Preferably, a plurality of paddle wheels (16) 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 in a simple method 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. Means are disclosed to compensate for variations in flow rates in the body of water including means to intensify a flow of the water and means to selectively vary a depth of penetration of the paddle wheel into the water.

Toner stirring paddle and toner cartridge

Abstract: PROBLEM TO BE SOLVED: To obtain a simply constituted toner stirring paddle capable of obtaining stable carrying force. SOLUTION: The stirring paddle 32 is prepared for stirring and carrying the toner stored in a case main body 4, the paddle 32 includes a rotating shaft 42 which is freely rotatably supported by the case main body 4, an attaching member 43 which extends in parallel to the rotating shaft 42, and also, which is supported by the rotating shaft 42, and a stirring blade 44. One end of the stirring blade 44 is attached along the extending direction of the attaching member 43, and also, with inclination to the center axis of the rotating shaft 42, the other end of the stirring blade 44 is formed to a free end extending in a direction orthogonal to the extending direction of the attaching member 43. COPYRIGHT: (C)2007,JPO&INPIT

Whole immersion creeper type moving web plate propeller for ship

Abstract: The utility model discloses a whole immersion creeper type movable paddle board propeller for a ship which is arranged in the depressed space at the bottom of the ship hull, and the utility model is composed of a carrier wheel, a wheel shaft, a chain, a movable paddle board, a roller, a grooved track and a sealing element. The movable paddle board is vertically hinged with the chain through the auricle on the side, both sides of the opposite sides are additionally mounted the trunnions, which are sleeved with the two rollers, and the two rollers are respectively inserted into the corresponding and self-sealing grooved track, so the auxiliary mechanism of the cam is formed, and the changeable inclination angle motion of the movable paddle board can be decided. The planes of the two grooved tracks are paralleled to the rotary plane of the carrier wheel. The shape of the movable paddle board and the chain-driving mechanism of the utility model are simple; the propeller for the long-distance ship can be easily carried out, and the radial dimension is small. The movable paddle boards are serially arranged in the same horizontal line, and the numbers of the movable paddle board for thrashing can be optionally increased. The utility model can not only increase the pushing force, but also the beam of the ship hull needs not to be enlarged, and the utility model is especially adapted to be provided and used for the ships which are operated on the narrow water channel.