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411results about How to "Friction minimization" patented technology
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Method for Deployment of a Medical Device
InactiveUS20080132748A1Reduce bending loadMinimizing contact pressureControl devicesBlood pumpsAortic archMedical device
A method for deploying a cardiac-assist device is disclosed. In accordance with the illustrative embodiment, an introducing tube, such as a catheter, sheath, or the like is inserted into the vascular system and advanced beyond the aortic arch. The cardiac-assist device is then inserted into the tube, advanced through it, and deployed from its distal end. In some embodiments, the diameter of the cardiac-assist device expands when it deploys from the distal end of the tube.
Owner:MEDICAL VALUE PARTNERS
Emboli diverting devices created by microfabricated means
A medical device for interposition between a first flow path and at least one second flow path is provided. The device includes a first surface facing toward the opening of at least one second flow path; and a second surface facing away from the opening of at least one second flow path. When the device is in the operative position, it extends less than the complete circumference of the first flow path and substantially covers the opening of at least one second flow path. The device contains one or more surface features to facilitate chronic implantation. The device further has one or more characteristic porosities. Different configurations are indicated depending on the pathophysiology being treated and dictate the characteristic porosity of the device. In some, cases blood is prevented from reaching the second flow path and in other cases, particulates traveling within the blood are prevented from reaching the second flow path. Methods of preventing emboli or blood flow into the second flow path are also provided. Methods and devices for delivery are also provided.
Owner:GERTNER MICHAEL
Axially Reciprocating Microsurgical Instrument with Radially Compressed Actuator Handle
ActiveUS20120116361A1Smooth rotationEasily otherwise movedEye surgeryExcision instrumentsReciprocating motionEngineering
A microsurgical instrument has a pair of operative surgical surfaces that are moved relative to each other in shearing or grasping procedures performed by the instrument. The instrument has a handle containing an elongate center rod with a ring mounted for reciprocating movement on the rod. A tube is secured to the ring and a shaft extends through the tube and is secured to the rod. The handle also includes a plurality of resilient arms that extend along the length of the rod and engage against a sliding surface of the ring on the rod. The plurality of actuator arms are alternatively manually compressed radially inwardly by the surgeon's hand and released by the surgeon's hand to allow the arms to flex radially inwardly and outwardly. The inward and outward movement of the plurality of arms reciprocates the ring on the handle rod and causes the tube and shaft to move axially relative to each other.
Owner:SYNERGETICS USA
Low drag, high pressure septum
ActiveUS20130218082A1Drag minimizationImprove sealingGuide needlesInfusion syringesCatheterEngineering
A septum is disclosed that can be utilized in a catheter assembly to selectively seal an opening in the catheter assembly. The septum has a tube portion and a plug portion. The plug portion has a slit extending through it. The septum can transition from a non-collapsed state to a collapsed state. When the septum is in a non-collapsed state, the plug portion is offset from the tube portion such that some of the length of the slit extends outward from the distal end of the tube portion. When the septum transitions to the collapsed state, the plug portion is moved inward into the internal cavity such that some of the length of the slit may or may not extend outward from the distal end of the tube portion.
Owner:BECTON DICKINSON & CO
Rankine cycle heat recovery methods and devices
InactiveUS20090277400A1Minimize frictional lossIncrease speedLiquid coolingCoolant flow controlRecovery methodMagnetic bearing
An integrated expansion turbine / electrical generator assembly (collectively referred to as a “turbo-generator”) suitable for use in waste heat recovery and similar applications. The turbo-generator uses a common shaft mounting a one or more stage expansion turbine and a homopolar electrical generator. Magnetic levitating axial and thrust bearings are used to hold the common shaft in its proper position with a fixed housing. The magnetic bearings minimize frictional losses, allowing the common shaft to spin at a very high rotational velocity. Sensor rings continually monitor the common shaft's position. This information is used by control electronics to regulate the magnetic bearings in order to hold the rotating shaft's position. Electrical energy is extracted from the rotating shaft in the form of a direct current. Preferably integrated power-switching electronics are used to generate single or three-phase AC power, which can be phase-matched to an existing power grid or other application.
Owner:DANFOSS AS
Linear vibration motor
InactiveUS8188623B2Minimizing abrasionFriction minimizationMechanical energy handlingPropulsion systemsEngineeringLinear vibration
Disclosed herein is a linear vibration motor. The motor includes a casing surrounding the top and widthwise side of the motor, and a bracket surrounding the bottom and lengthwise side of the motor. A plate is provided on an inner surface of a side of the bracket and integrally has a cylindrical part to accommodate a coil. A mass body is provided in a central portion of the bracket and vibrates horizontally, a yoke is provided on a side surface of the mass body, and a magnet is mounted to a central portion of the yoke to be inserted into an internal space of the coil. A spring couples the plate with the yoke, thus transmitting vibratory force to the motor. An extension part extends from an end of the spring, and a bearing is provided on an end of the extension part, thus minimizing friction with the casing.
Owner:SAMSUNG ELECTRO MECHANICS CO LTD
Locking system for floorboards
InactiveUS20050055943A1Increase the differenceGood guiding effectStrutsFlooringVertical planeEngineering
The invention relates to a locking system for mechanical joining of floorboards (1, 1′), a floorboard having such a locking system and a flooring made of such floorboards. The locking system has mechanical cooperating means (36, 38; 6, 8, 14) for vertical and horizontal joining of adjoining floorboards. The means for horizontal joining about a vertical plane (F) comprise a locking groove (14) and a locking strip (16) which is located at opposite joint edge portions (4a, 4b) of the floorboard (4). The locking strip (6) projects from the joint plane (F) and has an upwards projecting locking element (8) at its free end. The locking groove (14) is formed in the opposite joint edge portion (4a) of the floorboard at a distance from the joint plane (F). The locking groove (14) and the locking element (8) have operative locking surfaces (10, 11). The locking surfaces are essentially plane and spaced from the upper side of the projecting strip and inside the locking groove and make a locking angle (A) of at least 50° to the upper side of the board. Moreover the locking groove has a guiding part (12) for cooperation with a corresponding guiding part (6) on the locking element (8).
Owner:VÄLINGE INNOVATION AB
Locking system for floorboards
InactiveUS7003925B2Increase the differenceIncrease capacityCeilingsRoof covering using tiles/slatesVertical planeClassical mechanics
Owner:VÄLINGE INNOVATION AB
Variable radius continuously variable transmission
InactiveUS20050233846A1Minimal lossImprove efficiencyPortable liftingGearing elementsEffective radiusJunction point
An improved variable radius chain or belt transmission is provided for bicycle, motorcycle, automobile, industrial, household and consumer product uses. It delivers power and shifts under power through a continuously variable range of ratios. Alternative means are disclosed: for properly engaging the chain or belt regardless of drive radius; for handing off the workload of the chain or belt even while the drive's effective radius is changing; for minimizing the force required to expand a drive under chain or belt; for supporting the chain or belt attachment points in radially variable manner; for circumferentially bridging the spans between radial attachment points; for coordinating the radial movement of the attachment points within one drive; for actuating up-shifting or down-shifting processes in forward or reverse; and for simultaneously varying the effective radii of input and output drives in coordinated fashion.
Owner:GREEN ARTHUR G +2
Coil spring and reciprocating compressor having the same
InactiveUS20060061024A1Minimizing friction noiseFriction minimizationLighting and heating apparatusPiston pumpsCoil springEngineering
A coil spring in accordance with the present invention includes inner coils formed as a wire is wound plural times; and an inflection portion having a nonlinear shape and formed at an outer circumferential surface of the end coil, which is positioned toward the inner coil. When connected to other component and is constricted and relaxed to absorb an impact or a vibration transmitted from the outside, the coil spring minimizes friction generated between itself and other components so that reliability of a reciprocating compressor having the coil spring can be improved.
Owner:LG ELECTRONICS INC
Orthodontic bracket
InactiveUS20090155734A1Minimizing frictional engagementImprove rotationArch wiresBracketsOrthodontic bracketsEngineering
Owner:ORMCO CORP
Connection arrangement and method for connecting a medical device to the improved connection arrangement
ActiveUS20100152669A1Reduce riskFirmly connectedInfusion syringesTube connectorsEngineeringSafe handling
The present invention relates to a connection arrangement and a method of assembly, for providing a substantially tamper resistant connection with at least a first medical device. The connection arrangement (1) having a centre axis (A), the connection arrangement (1) comprises; a first connection member (21,161,521,621) for connection to the first medical device by means of a rotational motion in a first direction, and a body (60,120, 504, 603). Additionally the first connection member (21,161,521,621) and the body (60,120, 504, 603) are connected directly or indirectly together via at least one designated ruptureable retaining member (41, 141, 541, 641), the designated ruptureable retaining member (41, 141, 541, 641) is arranged to rupture at a predetermined breaking force, wherein the first connection member (21,161,521,621), and thereby the first medical device after assembly, can be displaced with respect to the body (60,120, 504, 603) after rupture. The present invention provides for a substantially tamper safe connection arrangement which disables accidents such as wrongly disengage a connected medical device. A safer handling is provided for the involved user(s).
Owner:CARMEL PHARMA
Golf club for preventing hook and slice
Disclosed therein is a golf club for preventing a hook and a slice, which can allow a golfer to easily control the golf club while swinging the golf club since a sole progression having a side width extending backwardly from a club head face and a sole plate having a bottom area are formed small by cutting a part of the rear side of a club head, thereby preventing the hook and slice due to a light weight of the club head and minimization of a frictional area between the ground and the club head.
Owner:GV GOLF KOREA
Method of making a snowboard having improved turning performance
InactiveUS6382658B1Improve featuresFriction minimizationSki bindingsSki-brakesEngineeringMoment of inertia
A method of making a snowboard or ski so that the bottom surface of the snowboard or ski is capable of bowing into a desired longitudinal curvature, with a circular arc being the preferred shape, in order to enable a "perfect" turn to be carved. The method comprises the steps of selecting a desired longitudinal curvature of the snowboard during turns, determining the desired curvature of the snowboard at a plurality of cross-sectional portions thereof in order to achieve the desired curvature, and selecting the cross-sectional area moments of inertia at each of the plurality of cross-sections to provide the desired curvature. The thickness of the core of the snowboard is the preferred design variable. The center section of a snowboard designed in accordance with this method has smaller average area moment of inertia than one or both of the front and rear mounting zones. Snowboards designed and constructed in accordance with this method exhibit improved turning performance, particularly in sharp, tight turns.
Owner:NORTH SHORE PARTNERS
Injection device comprising several coupling mechanisms
ActiveUS8491538B2Simplify the development processMinimize frictional lossAmpoule syringesAutomatic syringesCouplingEngineering
An injection device including a drive unit, a delivery unit, a dosing unit, a trigger for triggering an injection, a first coupling mechanism between the drive unit and the delivery unit, and a second coupling mechanism between the dosing unit and the drive unit, wherein the drive unit is tensioned by a rotation of the dosing unit and when the drive unit is tensioned the first coupling mechanism is disengaged and the second coupling mechanism is engaged, and wherein when an injection is triggered first the first coupling mechanism is engaged and then the second coupling mechanism is disengaged. In some embodiments, the device may include a third coupling mechanism which only releases the delivery unit after the engagement and disengagement which follow a triggering.
Owner:YPSOMED AG
Laminated Fabric Panels and Method of Assembling Same
InactiveUS20080196136A1Easy to weldMinimizing abrasionLayered productsDomestic articlesEngineeringWeld line
Laminated fabric panels and a method of assembling such panels. A garment, for example, is made of first and second parts assembled to one another by superimposing the first part and the second part so that their inner surfaces face one another; welding the two parts along a weld line; flattening the two parts, the weld line being arranged on the outer side; applying a reinforcement strip to the welding line on the outer side of the garment.
Owner:SALOMON SA
Sear and sear spring assembly for semiautomatic handguns
InactiveUS6412206B1Friction minimizationGuaranteed uptimeFiring/trigger mechanismsBreech mechanismsSemi automaticCHEEK DIMPLES
A friction minimizing element such as a smooth hardened ball, a dimple in the sear spring (steel, stainless, plastic, carbon fiber or titanium material) is employed to minimize sliding friction between the spring and the disconnector or between other sliding components of a firearm mechanism, particularly the trigger mechanism of a handgun or other firearm. In addition, the same technology can be applied to the trigger bow of a semi-automatic handgun by placing an additional ball or dimple in the trigger bow that minimizes sliding friction between the rear transverse element of the trigger bow and the disconnector of the trigger mechanism. The benefits of the sear spring or the trigger bow modifications can be applied together or separately in the trigger mechanism. Each adds an individual benefit of minimizing sliding friction between engaging trigger components and thus preventing trigger creep as the trigger mechanism is actuated.
Owner:STRAYER SANDY L
Electronic aircraft braking system with brake wear measurement, running clearance adjustment and plural electric motor-actuator ram assemblies
InactiveUS7108107B2Easy maintenanceIncrease weightAxially engaging brakesBraking action transmissionElectric aircraftActuator
An electrically actuated aircraft brake system and method which provides for brake wear measurement, brake running clearance adjustment, ram position-based control and improved construction and operation. Brake wear and running clearance measurement are obtained by analyzing the output of position sensing circuitry. The position sensing circuitry, preferably including a LVDT position sensor, is also used to determine braking load, a brake controller including circuitry for effecting displacement of one or more reciprocating rams to load a brake disk stack by a predetermined amount based on a present displacement value of the position signal obtained from the position sensor. The position sensor preferably includes a LVDT transducer connected between the reciprocating ram and a brake housing, and the motive device preferably includes a servo motor. Also provided is an actuator housing including a guideway for each ram, the guideway and ram having the same polygonal cross-section, whereby the ram nut is guided and restrained from rotation by the guideway as it is translated by a ball screw in threaded engagement with the ram nut for selective movement into and out of forceful engagement with the brake disk stack for applying and releasing braking force on a rotatable wheel. An electric motor is drivingly connected to each ball screw by a first gear integral with the ball screw, a second gear in mesh with the first gear, and a pinion on a rotating drive shaft of the electric motor.
Owner:THE BF GOODRICH CO
Tidal flow hydroelectric turbine
InactiveUS20090278357A1Increasing the thicknessReduce contactPump componentsFinal product manufactureElectricityWater flow
A hydroelectric turbine for the production of electricity from tidal flow forces, the turbine having a rotor with an open center such that the blades are mounted between an inner rim and outer rim, wherein retaining members and anti-friction members are provided to limit movement of the rotor relative to the housing in either axial direction, such that water flow in either direction operates the turbine, but wherein the retaining members and the anti-friction members allow the rotor to shift in either axial direction in response to water flow. The anti-friction members limiting rotor travel in the axial direction are preferably of increased thickness, such that as the anti-friction members wear down, the rotor is able to shift relative to the housing in the axial direction.
Owner:OPENHYDRO GRP LTD
Device for manipulating a tarpaulin
InactiveUS7549695B2Easy to operateFriction minimizationVehicle with living accommodationSuperstructure subunitsEngineeringMechanical engineering
A device for manipulating a tarpaulin so as to selectively cover and uncover a top aperture of a container. The top aperture defines an aperture peripheral edge, the aperture peripheral edge including two substantially opposed substantially longitudinal segments. The tarpaulin is configurable between an extended configuration and a retracted configuration. In the extended configuration, the tarpaulin substantially covers the top aperture. In the retracted configuration, the tarpaulin is substantially retracted from the top aperture. The device includes an elongated guiding component defining a guiding component longitudinal axis. The guiding component is securable to the container so as to extend at least partially along at least one of the longitudinal segments. A tarpaulin mounting component is usable for attaching the tarpaulin thereto. A link, mechanically coupled to the guiding component, is longitudinally movable therealong between a link proximal position and a link distal position. The tarpaulin mounting component is operatively coupled to the link in a manner such that when the link is in the link proximal position, and the tarpaulin is attached to the tarpaulin mounting component, the tarpaulin is in the retracted configuration. When the link is in the link distal position and the tarpaulin is attached to the tarpaulin mounting component, the tarpaulin is in the extended configuration.
Owner:ROYER REAL
Apparatus and methods for testing a fuel injector nozzle
InactiveUS20100170329A1Quick changeMinimizes static frictionInternal-combustion engine testingFuel injection apparatusMomentumInjector nozzle
An apparatus and method is described for testing a multi-hole fuel injector nozzle. The apparatus comprises mounting means for the multi-hole nozzle and fuel supply means for supplying fuel to the multi-hole nozzle. The multi-hole nozzle is mounted outside a measurement chamber for capturing the fuel spray from an individual spray hole outlet of the multi-hole nozzle. In one embodiment, the apparatus includes a spray target plate, located within the measurement chamber, at which the fuel spray is directed. The spray target plate (28) is connected to a remote pressure sensor, which is used to determine the spray force of the fuel spray acting on the spray target plate. The apparatus is further arranged to determine the mass flow rate of the fuel spray. A new parameter, referred to as ‘momentum efficiency’ is defined, and calculated using the determined values of spray force and mass flow rate.
Owner:DELPHI TECH IP LTD
Axial bearing
ActiveUS7401980B2Safe and cost-effectiveReduce manufacturing costCrankshaftsCrossheadsTurbochargerThrust bearing
A thrust bearing, in particular for a turbo charger, has an essentially disc shaped bearing body (10) with a central through opening (12) for a shaft, at least one bearing surface (14) surrounding the through opening (12) for a collar which is placed on the shaft, and at least one oil supply channel which leads from a radially outer region of the bearing body to the through opening (12). In order to realize a cost effective manufacture of the thrust bearing it is proposed according to the invention that the at least one oil supply channel is designed to be a groove (16′).
Owner:BORGWARNER INC
Liquid pump with a claw pole stator
InactiveUS6506034B1Reduced installation depthEffectively limit disruptionManufacturing stator/rotor bodiesMechanical energy handlingEngineeringHeating system
A fluid pump, in particular for the coolant and heating system of a motor vehicle, has a stator (21) of claw pole construction and a rotor (6), separated from the stator (21) by a pipe (11), which is immersed in the coolant and forms a vane wheel. The rotor (6) is disposed radially inside the stator (21).
Owner:ROBERT BOSCH GMBH
Optical lens with scratch-resistant anti-reflective layer
ActiveUS8982466B2Improved beadingSliding frictionSpectales/gogglesOptical partsRefractive indexVisible spectral range
The present invention relates to an optical lens having a lens element produced of plastic, more particularly of plastic which is transparent in a visible spectral range, and having a coating comprising a plurality of layers, the plurality of layers comprising at least one high-refractive-index layer. Furthermore, a hardcoat layer is formed adjacent to the lens element, and a superhydrophobic layer concludes the coating in opposition to the lens element. The at least one high-refractive-index layer has a thickness of less than 40 nm, and the coating overall has a thickness of more than about 380 nm.
Owner:CARL ZEISS VISION INT GMBH
Tribologically improved design for variable stator vanes
InactiveUS6887035B2Increased durabilityFacilitate effectivenessWind motor controlPump componentsEngineeringPressure difference
A bushing and washer forming a bearing assembly at the outer radial end of a stator vane, the outer bearing assembly, and the bearing assembly at the inner radial end of the stator vane, the inner bearing assembly, that facilitate durability, effectiveness and reduced cost. Both the inner and outer bearing assemblies are designed to rotate relative to the vane shaft and the respective mating shroud or case to even out the wear around the circumference of the bushing. When a rotating bushing is used, a flange on the bushing is designed to be positioned on the inside of the case, so that a pressure differential across the case applies a force to the vane to move it outwardly against the flange and the flange against the case, thereby minimizing air leakage.
Owner:GENERAL ELECTRIC CO
Drug delivery device
ActiveUS20140163339A1Lower the volumeConveniently be rendered waterproofMedical devicesCatheterDrug reservoirCoupling
Embodiments of the present invention provide drug-delivery devices comprising a drug reservoir chamber containing a substance to be delivered, in fluid connection with a drug administration means, and at least one displacement-generating battery cell coupled to said drug reservoir chamber by a coupling means, the at least one displacement-generating battery cell comprising an element that changes shape as a result of discharge of the battery cell so as to cause a displacement within the battery unit, the arrangement being such that the displacement derived from said battery unit is conveyed by said coupling means to cause displacement of at least a portion of a wall of said drug reservoir chamber reducing the volume of said drug reservoir chamber such that said substance is expelled from said drug reservoir chamber towards said drug administration means upon discharge, thereby being a self-powered drug delivery device.
Owner:UNITED THERAPEUTICS CORP
Ipm motor and vacuum inhaling apparatus using the same
InactiveUS20100196174A1Minimize frictional resistanceSmall amount of frictional resistancePump componentsPiston pumpsStator coilMagnet
Provided is a high speed and high efficiency IPM (Interior Permanent Magnet) motor and a slim type vacuum inhaling apparatus using the same, which establishes a passage path of introduced air into a path of air-cooling the inside of a stator and a circuit element to thus cool heat that is produced from the IPM motor without a special heat radiator. The IPM motor includes: a stator having a number of tees which are protruded so as to form a number of slots on the inner circumferential wall of a cylindrical body, and a stator coil which is partially wound around the slots; and an IPM type rotor having a rotor core at the central side of which a rotating shaft is mounted, and a number of permanent magnets which are fitted into a number of permanent magnet insertion holes which are formed on the identical circumference of the rotor core, and which is rotated by the stator.
Owner:AMOTECH
Hip prosthesis
InactiveUS7211113B2Improve stabilityAbility of the inventive structure to withstand numerous loadsBone implantJoint implantsCoxal jointBiomechanics
An endoprosthesis utilizes a biomechanical structure based on the lever model of first degree. Contrary to the widespread practice, the inventive structure has a stem placed inside the femur bone, which is not rigidly attached to this bone. Accordingly, the bone, following its known tendency to slightly pivot away from the medial plane of the body in response to the loads, does not directly contact the stem. The neck portion experiences even greater loads then the stem. The supporting anchor has a region extending laterally from the stem and pressing against a supporting surface of the housing, which also extends laterally from the body of the housing. Since the stem, supporting anchor and neck are typically constitute a one-piece component, the lateral surfaces of the supporting anchor and housing are in continuous frictional contact during displacement of the stem and housing relative to one another.
Owner:ZELENER LEV +3
Device for manipulating a tarpaulin
InactiveUS20080290686A1Easy to disassembleEasy accessVehicle with living accommodationSuperstructure subunitsMechanical engineeringEngineering
A device for manipulating a tarpaulin so as to selectively cover and uncover a top aperture of a container. The top aperture defines an aperture peripheral edge, the aperture peripheral edge including two substantially opposed substantially longitudinal segments. The tarpaulin is configurable between an extended configuration and a retracted configuration. In the extended configuration, the tarpaulin substantially covers the top aperture. In the retracted configuration, the tarpaulin is substantially retracted from the top aperture. The device includes an elongated guiding component defining a guiding component longitudinal axis. The guiding component is securable to the container so as to extend at least partially along at least one of the longitudinal segments. A tarpaulin mounting component is usable for attaching the tarpaulin thereto. A link, mechanically coupled to the guiding component, is longitudinally movable therealong between a link proximal position and a link distal position. The tarpaulin mounting component is operatively coupled to the link in a manner such that when the link is in the link proximal position, and the tarpaulin is attached to the tarpaulin mounting component, the tarpaulin is in the retracted configuration. When the link is in the link distal position and the tarpaulin is attached to the tarpaulin mounting component, the tarpaulin is in the extended configuration.
Owner:ROYER REAL
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