Showing papers on "Paddle published in 2008"

A Standardized Mini Paddle Apparatus as an Alternative to the Standard Paddle

Abstract: Results from the present series of tests indicate that the mini paddle apparatus is a useful tool in characterizing drug release profiles under “standard test conditions”. Due to the possibility of using smaller sample sizes and smaller volumes of media, it offers various advantages in terms of substance, analytical, and material cost savings when evaluating release properties of drug candidates. The mini paddle setup is also a promising alternative if the analytics are not very sensitive or in the case of highly potent drugs. Because the size and shape of dosage forms can also impact drug release, the mini paddle should preferably be used for powders, multiparticulate dosage forms, and small tablets or capsules (i.e., where the paddle apparatus would be the usual method of choice). Nowadays, there are various types of mini paddle systems available on the market. However, most of these systems reflect everything but a miniaturized reproduction of the USP paddle system. For this reason, the outcome of the present study should not be generalized since changing the dimensions of the setup can quickly result in alterations of the hydrodynamics which, as has been shown in the present study, can have a huge impact on drug release from the dosage form tested. The next steps would be therefore to check, if it is possible to further downsize the setup with maintaining the significance of the compendial setup, to determine the impact of experimental settings on drug release from MR formulations and to measure/simulate flow velocities in the mini vessel.

Paddle wheel electric generator

Abstract: A minimal maintenance paddle wheel electric generation device for producing no cost electricity includes an A-frame base disposed in a fast flowing stream with a paddle wheel mounted between A-frame supports, with the supports resting on the base, and the paddle wheel including radially arranged dip blades with the rotation of the paddle wheel by the swiftly running water turning a drive gear that engages a series of reduction gears that, in turn, actuate a generator for producing electricity. A pair of paddle wheels can be ganged together on several floating members with the floating members tethered by cables to stanchions fixed on opposed banks of the stream. The paddle wheel can also be supported on buoyant inflatable tubes that have curvilinear members attached to the rear ends for directing water into the channel formed between the tubes thereby enhancing water flow and the angular speed of the paddle wheel for increased power generation.

Flexible paddle sheds new light on speed: a novel method for the remote measurement of swim speed in aquatic animals

Abstract: Speed is a key determinant of energy expenditure in free-living animals, and particu- larly in marine vertebrates, where power requirements for swimming increase as a cubed function of the speed. However, current devices used to measure swim speed in free-living animals have limita- tions, including excessive drag, low resolution, high stall speed (ca. 0.3 m s -1 ), cost, biofouling and susceptibility to damage. We present a speed sensor system that utilises the reflectance of infrared light against a flexible paddle that bends in relation to the flow of water over the study animal. In lab- oratory trials, this performed well across a range of speeds (0.1 to 1.75 m s -1 ), and had a stall speed of 0.1 m s -1 . The advantages of this present paddle system are that it is impervious to the presence of matter in the water column, is inexpensive and easily replaceable. Furthermore, the system is able to record speed data at an unparalleled resolution, limited solely by sampling frequency. Data from deployments of devices on free-living imperial cormorants Phalacrocorax atriceps identified changes in speed within and between swim strokes, and also showed that greater speed was generated per kick as the buoyancy decreased with depth. As such, the flexible paddle system holds promise for the measurement of speed in free-living, aquatic animals.

Knee ligament balancer

Abstract: An orthopaedic surgical device comprises a first sensor component and a second sensor component. Each sensor component includes a paddle set to contact a proximal tibia and a distal femur of a patient. The first sensor component and the second sensor component being movable with respect to one another to extend one paddle set beyond the other paddle set, and each paddle set includes cutouts for the clearance of the patellar tendon to avoid the need to avert the patella during use.

Paddle lead comprising opposing diagonal arrangements of electrodes and method for using the same

Abstract: In one embodiment, a paddle lead for electrical stimulation of a patient comprises a lead body of insulative material; a plurality of electrical terminals disposed at a proximal end of the lead body; a paddle structure disposed at distal end of the lead body; a plurality of electrodes disposed on the paddle structure; a plurality of conductors disposed within the lead body, wherein the plurality of conductors electrically couple the plurality of terminals with the plurality of electrodes; wherein the plurality of electrodes are arranged in at least two sets that are disposed in opposing generally diagonal arrangements relative to a longitudinal axis of the paddle structure.

Apparatus for mixing the contents of a container

Abstract: An apparatus for mixing materials is disclosed. The apparatus includes a support. A mixing container is disposed in the support, where the mixing container is configured to retain materials. A driver assembly is configured to protrude through the support and into the mixing container. The mixing container includes a paddle, the driver assembly is configured to be attached to the paddle, where the driver assembly is configured to oscillate the paddle in a back and forth direction at a set angle in order to mix the materials in the mixing container.

I/O connection scheme for QFN leadframe and package structures

Abstract: Methods, systems, and apparatuses for integrated circuit packages and lead frames are provided. A quad flat no-lead (QFN) package includes a plurality of peripherally positioned pins, a die-attach paddle, an integrated circuit die, and an encapsulating material. The die-attach paddle is positioned within a periphery formed by the pins. The die is attached to the die-attach paddle. The encapsulating material encapsulates the die on the die-attach paddle, encapsulates bond wires connected between the die and the pins, and fills a space between the pins and the die-attach paddle. One or more of the pins are extended. An extended pin may be elongated, L shaped, T shaped, or “wishbone” shaped. The extended pin(s) enable wire bonding of additional ground, power, and I/O (input/output) pads of the die in a manner that does not significantly increase QFN package cost.

Self-detecting gate-tunable nanotube paddle resonators

Abstract: We have fabricated suspended metal paddle resonators with carbon nanotubes functioning as self-detecting torsional springs. We observe gate-tunable resonances that either tune to higher or to lower frequencies when increasing the dc voltage on the back gate. We attribute the former modes to flexural vibrations of the paddle resonator, while the latter ones are identified as torsional vibrations. Compared to top-down silicon fabricated paddle resonators, nanotube springs have smaller torsional spring constants and provide a larger frequency tunability.

Dual stage input lever transmission downshift system

Abstract: A two stage clutch and shift actuation paddle assembly provides clutch disengagement through a first range of movement of a manually operated control lever or paddle and electronic shifting of a transmission upon movement through a second range. A return spring force generator causes a lower return force to be exerted on the generator paddle in a range of motion wherein the clutch is disengaged and a pronounced increased spring force to be exerted in advanced range of motion wherein the transmission shift actuation occurs.

Adjustable Vehicle Transmission Shifters

Abstract: Disclosed herein are embodiments of a vehicle transmission shifter and methods of adjusting the vehicle transmission shifter. The vehicle transmission shifter comprises a stalk, a paddle extending from the stalk, and an adjustment mechanism responsive to a driver input to position the paddle in relation to the steering wheel. The paddle is configured to receive a driver's fingers while manually engaging the steering wheel. The method comprises providing driver input to the adjustment mechanism through a user control and adjusting the adjustment mechanism in response to the driver input to position the paddle in relation to the steering wheel.

Electrical dimmer control switch

Abstract: An electrical rocker paddle switch assembly having a switch housing; a manually movable rocker paddle coupled to the housing; an actuator having a first end and a second end, the actuator being attached to the rocker paddle at the first end and the second end configured to activate a switch in response to a corresponding movement of the rocker paddle; a bored member having a first end that is attached to an underside of the rocker paddle near a pivot axis of the rocker paddle, and a second end that has an opening configured to retain a roller member and allow a portion of the roller member to extend beyond an end of the bored member, the bored member extending in a substantially perpendicular direction from the rocker paddle. A spring and a ball are configured to be retained in the bored member, the spring configured in the bored member to urge the ball towards the opening. A detent member is formed along a bottom of the housing, the detent member being configured to contact the ball when a force is exerted on the rocker paddle, the detent member being further configured to retain the rocker paddle in a pre-determined position corresponding to the force that is exerted on the rocker paddle when the rocker paddle reaches an end position in a direction of movement.

Apparatus for measurement of in-situ viscosity

Abstract: An apparatus for measuring in situ the viscosity of a fluid within a vessel which includes an impeller paddle immersed in the fluid rotated by an electric motor connected to a shaft passing through a wall of the vessel The impeller paddle is connected to the shaft by a toroidal spring The electric motor is controlled by a variable voltage power supply controlled by a computer Sensors are mounted on the impeller paddle and the shaft to sense the rotational positions of each and to generate electronic signals indicative thereof The electronic signals are processed by signal processing circuitry to determining the deflection angle of the impeller paddle and the results sent to a computer, where the signals are recorded and analyzed to determine the viscosity of the fluid

Monitoring of power demand of foundry machinery, using the example of paddle mixers

Abstract: The study outlines the basic features of a newly-designed computer-supported system for monitoring and recording the instantaneous power consumption, used to control the operating parameters of foundry machinery. Explored are potential applications of the module for fast recording of instantaneous currents and voltages in a triple phase power supply system in a paddle mixer. Further research areas are indicated, to extend the system and the range of its potential applications.

Flat paddle square tube propeller for ship crafts

Abstract: The invention relates to a plate paddle square tube propeller for vessels, which is composed of a crank, a connecting bar, a connecting bar guide, plate paddles, an inner side fixing plate, an outer side fixing plate and two baffle plates Motor drive is transmitted to the crank by a reducer casing, one end of the connecting bar does circular motion under traction of the crank, the other end does closed curvilinear motion similar to the profile of 'human ears', the middle of the connecting bar slides reciprocally in the connecting bar guide, the plate paddles do motion constantly and reciprocally 'flap and unfolding' similar to an insect in a square tube surrounded by the inner side fixing plate, the outer side fixing plate and two baffle plates under drive of the connecting bar, thereby Weis-Fogh effect is produced to propel a vessel to navigate The plate paddle square tube propeller for vessels has simple structure, high efficiency and safety

Paddle blade that allows use of a handle and/or paddle for any way paddling

Abstract: The invention is the addition to traditional shafts used for stand-up paddling that normally have a standard paddle at one end of the shaft and a handle at the other end of the shaft. The invention incorporates a second paddle attached to the shaft at the location of the handle. The paddle may have an interior opening surrounding a portion of the handle to enable a user to grasp the handle with a user's hand. Alternatively, the body of the paddle can be oriented at an angle relative to the handle so that a gap is formed between an interior surface of the body of the paddle and the handle so that the handle can be grasped by a user's hand with the user's fingers resting in the gap.

Self-adapting torsional spring velocity regulating aerogenerator

Abstract: The utility model relates to a self-adaptive torsion spring speed adjusting type wind power generator which can adjust the rotate speed of the blade according to the condition of the wind speed, consisting of a blade with a changeable paddle distance and a machine head, wherein, the blade with a changeable paddle distance is arranged in the hub of the machine head end, and the high strength spring is sleeved between the bottom of a paddle shaft and an adjust fastening nut. When the blade rotates around the paddle shaft and changes the paddle distance, the high strength spring is compressed or flicked; in working, when the wind speed is in the rated wind speed, the windward stress of the blade is in balance with the spring torsion, and the windward angle does not change; and when the wind speed exceeds the rated wind speed, the blade overcomes the spring torsion and rotates around the shaft to change the paddle distance and realize the speed adjusting; after feathering the paddle, in the condition of wind power reducing, the blade shaft is out of the paddle feathering state in the torsion effect, realizing the automatic replacement of the blade.

HVAC assembly including temperature mixing valve

Abstract: A HVAC assembly includes a temperature mixing valve that comprises a shaft, an upper paddle, a lower paddle, and a yielding means. The upper paddle and the lower paddle attach to the shaft. The yielding means applies a force to keep the upper paddle sealed to prevent cold air in a cold air inlet from entering a mixing zone and the lower paddle moves away from a shared sealing boundary over a predetermined angle of rotation before the upper paddle initially moves to allow cold air to enter the mixing zone. Movement of the lower paddle away from the shared sealing boundary allows cold air to enter a hot air inlet and admix with hot air to mix in the mixing zone to produce non-stratified air.

Integrated circuit packaging system with stacked paddle and method of manufacture thereof

Abstract: A method of manufacture of an integrated circuit packaging system includes: forming a package paddle and a terminal adjacent to the package paddle; mounting a stack paddle over the package paddle with the stack paddle at a non-center offset with the package paddle; mounting a stack integrated circuit over the stack paddle; and encapsulating the stack integrated circuit and the stack paddle.

Paddle switch and steering wheel

Abstract: Paddle levers protrude from lower sides of a center pad of a steering wheel into two lower spaces partitioned using a horizontal spoke and a vertical spoke of the steering wheel. The paddle lever is formed of a transparent photoconductor, and a periphery of the paddle lever is illuminated in a rimmed shape. Hence, the paddle lever can be visually recognized easily, and a finger touching the paddle lever can be visually recognized instantaneously. Therefore, operation almost nearly equivalent to complete blind touch operation can be attained, and the operability is improved.

Work machine operator input assembly

Abstract: An operator input assembly includes an operator input device. The operator input device includes a paddle and a leaf spring interfacing with the paddle so as to bias the paddle to a predetermined position. The paddle includes a region which interfaces with the leaf spring.

Self-detecting gate-tunable nanotube paddle resonators

Abstract: We have fabricated suspended metal paddle resonators with carbon nanotubes functioning as self-detecting torsional springs. We observe gate-tunable resonances, that either tune to higher or to lower frequencies when increasing the dc voltage on the back-gate. We attribute the former modes to flexural vibrations of the paddle resonator, while the latter ones are identified as torsional vibrations. Compared to top-down silicon fabricated paddle resonators, nanotube springs have smaller torsional spring constants and provide a larger frequency tunability.

Training Bat to Develop Proper Hand Positioning

Abstract: A baseball training bat is provided with a square handle and a paddle coupled to the square handle. A face of the paddle is aligned with a side of the square handle. The thumb is placed on the handle in conjunction with a wide side of the bat. This helps the hitter to get square to the ball by keeping his or her top hand in a palm up position. When the hitter swings the training bat, the top hand is palm up so the wide side of the bat can strike a ball. This forces the hitter to get the hands under the ball and take the proper path to the ball. The flat paddle gives the hitter instant feedback and lets the hitter know when they correctly hit the ball with a line drive. Other embodiments are provided.

Interlock assembly for a stored energy mechanism

Abstract: The stored energy device interlock assembly (200) provided is structured to prevent the closing assembly (54) and/or the latch assembly (180) from being actuated in selected configurations. The interlock assembly (200) includes a latch D-shaft link assembly (210), an on-command paddle assembly (212), and an on-command paddle actuator (214). The latch D-shaft link assembly (210) is pivotally coupled to, and structured to rotate, the latch assembly D-shaft (188). The on-command paddle assembly (212) is structured to move the D-shaft link assembly (210). The on-command paddle actuator (214) is structured to move the on-command paddle assembly (212). The interlock assembly (200) is structured to disengage the latch assembly D-shaft (188) from the on-command paddle assembly (212) in selected configurations of the electrical switching apparatus (10). The interlock assembly (200) provided herein has two pivotal degrees of freedom as opposed to a pivotal degree of freedom and a sliding degree of freedom.

Inkjet Printhead With Laterally Reciprocating Paddle

Abstract: An inkjet printhead includes a nozzle chamber structure defining a nozzle chamber. The nozzle chamber structure further defines a pair of ink ejection nozzles and an ink supply channel in fluid communication with the nozzle chamber. A movable paddle is disposed within the nozzle chamber at a location between the ink ejection nozzles. An actuator is attached to the paddle and, upon actuation, can reciprocate the paddle toward and away from a first one of the ink ejection nozzles so that ink in the nozzle chamber can be ejected out through that first nozzle.

Apparatus for elimating the slags

Abstract: An apparatus for eliminating slag is provided to remove the slag which is formed on a molten iron and reduce/recover the chrome contained in the slag by a skimmer paddle formed at a simmer boom. A skimmer paddle(10) is formed at one end of a simmer boom(21) to remove slag which is formed on the molten iron. A feeding pipe(14) is connected with a feeding hose(34). One end of the feeding pipe is combined with the skimmer boom at a rear end of a holding chain. The other end of the feeding pipe is combined with a paddle fixing body. The skimmer boom has one end which is formed with the paddle fixing body, and the other end which is connected with a driving chain(22). The driving chain is driven by power from a motor(24). The feeding hose is wound on the holding chain. Powder carbon is stored in a silo(30). A gate valve(32) is installed at a lower end of the silo. An inactive gas line(31) is installed at a lower end of the silo.

Two-stage type flocculation and mixture tank

Abstract: PROBLEM TO BE SOLVED: To provide a two-stage type flocculation and mixture tank which is provided with agitation blades different in shape, and in which high speed and low speed agitation is performed to granulate flocks. SOLUTION: A rotary plate 18 is fixed to a drive shaft 13 erected near the tank bottom of the flocculation and mixture tank 1, multiple downward tilted blade plates 20 are suspendedly provided on the surface of the rotary plate to compose high speed agitation blades 2. Paddle blades 4 for low speed agitation are fixed to a drive shaft 17 suspended from the top of the chemical conditioning tank 1, and a raw liquid supply pipe 7 opened near the tip end part of the agitation blades 2 is tangentially connected to the flocculation and mixture tank 1, and a discharge pipe 8 is tangentially connected to the upper peripheral wall of the tank 1. An appropriate setting of the rotation speeds of the agitation blades 2 and paddle blades 4 can enhance mixing efficiency by shortening retention time of slurry and by speed difference effect, to form strong flocks. No tangling of fibers to the paddle blades 4 occurs, allowing high speed rotation, to allow stable operation. COPYRIGHT: (C)2008,JPO&INPIT

Paddle sports fatalities - Maine, 2000-2007.

Abstract: In 2006, approximately 70 million persons in the United States participated in recreational boating, and paddle sports vessels (i.e., canoes, kayaks, and inflatable rafts) made up the fastest-growing segment of the boating market. From 2005 to 2006, canoe sales in the United States increased by 23%, and kayak sales increased by 11%, while powerboat sales decreased by 5%. To analyze the trends and characteristics of deaths associated with paddle sports, the Maine Department of Health and Human Services examined data on fatalities that occurred during 2000-2007. The results of this analysis determined that paddle sports deaths were associated with inexperience, alcohol use, and not using a personal flotation device (PFD). To reduce the risk for paddle sports fatalities, boating organizations and water-sport enforcement agencies should encourage boater safety education, use of PFDs, and avoidance of alcohol before and during boating.

Homogenizer for pretreatment of solid and/or plant specimen

Abstract: PROBLEM TO BE SOLVED: To provide a new function in a homogenizer with a laboratory paddle used together with a sterilized inspection bag, and to carry out homogenizing in a short time under the optimum condition. SOLUTION: Essential cleaning for the paddle and a cavity part of the homogenizer are quickly and efficiently carried out because attaching and detaching are very easily carried out without using a tool by a novel paddle. The bag filled with the specimen and a liquid is easily inserted into the homogenizer when homogenizing in the next, because the two paddles are stopped at the same time on the same plane by an optical or another type sensor. A volume of a space between the paddle and a door is regulated easily without using the tool, while looking with eyes by advancing or retreating back the whole of a motor and the paddle, for regulating a crushing force of the homogenizer by a size, hardness and a property of the specimen. The characteristic homogenizer makes the homogenizing efficient and safe, and shortens remarkably the time therefor. COPYRIGHT: (C)2008,JPO&INPIT