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700results about How to "Eliminate friction" patented technology

Medical device

A mechanism for attaching a component, such as a speech processor unit (29) of a cochlear implant, to the clothing (40) of a user of that component. The attaching mechanism is operable by an unlocking device, such as a magnet (44), that can be held in the possession of a person other than the person wearing the clothing (40) to which the component is mounted. The attachment device can comprise an elongate pin member (33) that is adapted to pass through at least a portion of an item of clothing (40) and be received in a chamber (38) and held by frictional engagement therein.
Owner:COCHLEAR LIMITED

Hubless caster

InactiveUS6839939B2Alter visual appearanceReduce lever armSuction cleanersCastorsEngineeringFree rotation
A hubless caster assembly includes a caster body and at least one wheel, the wheel comprising a toroidal member having a bearing race, and a complementary bearing race supported by the caster body. Bearing elements in the races support the wheel in free rotation. The caster body may comprise a ring body having an axial opening, whereby the caster assembly has a large central aperture extending entirely therethrough. A centering ring may be secured in the axial opening with the complementary bearing race formed therein. A hub cap with visual treatment may be secured over the central aperture.
Owner:OCONOMOWOC MFG

Magnetic suspension linear motion platform based on combination of permanent magnets and electromagnets

The invention discloses a magnetic suspension linear motion platform based on the combination of permanent magnets and electromagnets. The electromagnets are vertically installed in a suspensoid, array permanent magnets are arranged on the surface of a guide rail, the suspension of the suspensoid can be realized by utilizing the principle of holopolarity repulsion between the electromagnets and the permanent magnets; and meanwhile, an eddy current displacement sensor is combined to realize the stable suspension of the suspensoid above the guide rail; two pairs of electromagnets are horizontally installed in the suspensoid, which can provide guidance for the linear motion of the platform by combining with the eddy current displacement sensor; a linear motor stator is fixed on a base, a linear motor rotor is fixed on the suspensoid, a grating ruler is arranged on the surface of the guide rail, and the reading head of the grating ruler is installed on the suspensoid, thus the precise linear positioning motion of the suspensoid can be realized. The platform provided by the invention can realize the functions such as super cleaning, high speed, long stroke, precise positioning motion and the like, which can not be realized by the traditional scheme that a rotary servo motor is utilized to drive, a precise ball screw is utilized to transmit and a slide guide is utilized to support, and has the advantages of good load bearing characteristic and stable suspension performance.
Owner:CENT SOUTH UNIV

Triaxial compression rheological test system capable of simulating engineering geological environment

InactiveCN101886996AImplement rheological testsSolve the problem of uniform heatingInvestigating material ductilityLithologyMulti field
The invention provides a triaxial compression rheological test system capable of simulating an engineering geological environment, belonging to rock material compression experimental facilities. The remarkable characteristics of the invention are as follows: a test chamber in the triaxial compression rheological test system capable of simulating the engineering geological environment can depend on a normal rheological compression test device to realize the analogue simulation of the variations of a temperature field, a humidity field and a chemical field in the engineering geological environment by utilizing a humidifier, a heater and a fluid tank. The device fundamentally solves the problems of larger deviation of rock mechanics parameters obtained by a laboratory test and a field in-situ test and analogue simulation of a geotechnical wall-rock multi-field coupling environment. The test system has compact structure and low cost, is rather easy to install and dismount test pieces, detectors, pipelines and lead wires, and has stronger adaptability on the test pieces with different lithologies and sizes, thereby providing a set of complete technology and means for the study on the mechanical behavior of the wall-rock stability under a complex engineering geological condition.
Owner:付志亮

Drilling tool for stimulating vibration of drill column

ActiveCN102747957AWater hammer eliminationRelieve stressVibration drillingPenetration rateL-shell
The invention discloses a drilling tool for stimulating vibration of a drill column. The drilling tool comprises an upper shell, a lower shell and a poppet valve device, wherein an adapter is arranged at the upper end of the upper shell; a piston rod is arranged below the adapter in a sliding manner; a hollow piston rod runner is arranged on the piston rod; the upper end of the lower shell is fixedly connected with the lower end of the piston rod; a guide drive device is arranged inside the lower shell, and the poppet valve device is arranged below the guide drive device. When the drilling tool for stimulating vibration of the drill column is connected into the drill column to drill, a special valve system is driven by drilling fluid to generate hydraulic impact for driving the lower drill column to carry out periodic vibration in an axial direction, so that the phenomena of dragging and sticky slip generated in the drilling process of a high-friction torsional section can be eliminated, the contact state between the drill column and a well wall is improved, the upper drilling pressure and torque are effectively transmitted to a drill bit, and the penetration rate is increased.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

System and method for generating dynamic playlists utilising device co-presence proximity

InactiveUS20160294896A1Eliminate frictionEradicates the guesswork involvedPower managementMultimedia data retrievalCo presenceAcoustics
The invention provides a system and method for generating dynamic playlists utilising device co-presence proximity comprising the step of identifying of music preferences by analysing the listening history on a device of a user; and recognising what devices are co-present within a set proximity for the purposes of matching such devices.
Owner:SPOTIFY

Pressure injection method for integral forming of non-pneumatic tire

InactiveCN105599214ASimple processSpecial craftTyresDynamic balanceEngineering
The invention provides a pressure injection method for integral forming of a non-pneumatic tire. The method includes the following steps that firstly, configured raw materials for manufacturing the non-pneumatic tire are placed into a material storage box and are evenly stirred; secondly, the temperature of a pre-heating pressure injection machine is raised to 180-190 DEG C; thirdly, pressure of the pre-heating pressure injection machine is increased to 50-60 Pa; fourthly, the material inflow speed is adjusted to 10-20 m / s; fifthly, the pressure holding time is adjusted to 2-3 min; sixthly, the raw materials for manufacturing the non-pneumatic tire in the first step are injected into the pressure injection machine, and operation is started according to a preset mode; seventhly, after mold assembly, injection, hot melting, cooling and mold disassembly are sequentially performed, the non-pneumatic tire is obtained. The technology is simple, multi-time machining is not needed, one-time forming is achieved, operation is convenient, and cost is low; the obtained non-pneumatic tire is uniform and reasonable in structure and is not divided into an inner tire and an outer tire, friction force and resistance between the inner tire and the outer tire are eliminated, dynamic balance is good, and the non-pneumatic tire is resistant to abrasion and rolling and durable.
Owner:GUANGZHOU NEDONG INFORMATION TECH

Low-energy-consumption motor-less drive type conveying device

The invention discloses a low-energy-consumption motor-less drive type conveying device. The low-energy-consumption motor-less drive type conveying device comprises supports, wherein static electricity magnets are uniformly arranged on the supports, a guide rail supporting seat is arranged in the center of two supports, a magnetic suspension guide rail pair is arranged on the guide rail supporting seat, a lower supporting block is arranged on the magnetic suspension guide rail pair, a dynamic electricity magnet is arranged on the lower supporting block, an upper supporting block is arranged on the dynamic electricity magnet, and a working platform is arranged on the upper supporting block; a coil is wound on each static electricity magnet and another coil is wound on each dynamic electricity magnet; and four corners of end faces in the vertical direction of each static electricity magnet and each dynamic electricity magnet are cut away, and the cut amounts and the cut angles of the four corners are consistent. With the adoption of the low-energy-consumption motor-less drive type conveying device, motor-less drive and automatic guide of a movable rail are realized, the energy consumption during conveying operation is greatly reduced, the friction during conveying operation is eliminated, and the accuracy during operation is improved.
Owner:南通大学技术转移中心有限公司

Magnetic suspension universal momentum sphere device and realizing method thereof

ActiveCN102975868AZero frictionZero resistanceSpacecraft guiding apparatusMagnetic tension forceMomentum
The invention discloses a magnetic suspension universal momentum sphere device and a realizing method thereof. The magnetic suspension universal momentum sphere device comprises a momentum sphere, a position control electromagnetic system, a rotation control electromagnetic system, a sphere body state detection system and a central control system, wherein the momentum sphere is used for rotation, the position control electromagnetic system is used for generating a magnetic force in any direction for the momentum sphere, the rotation control electromagnetic system is used for generating a rotating torque capable of rotating towards any direction for the momentum sphere, the sphere body state detection system is used for detecting the operation state of the momentum sphere and the central control system is used for controlling the electromagnetic system and the sphere body state detection system and receiving operation state data of the momentum sphere, detected by the sphere body state detection system. The momentum sphere is adopted for replacing a momentum wheel, therefore the magnetic suspension universal momentum sphere device is capable of realizing rotation in any direction; the rotating torque enabling the sphere body to rotate is generated through a rotating magnetic field, therefore, the magnetic suspension universal momentum sphere device realizes non-contact, non-resistance and accurate rotation control; and the sphere body is magnetically suspended through the magnetic force, therefore the friction force is thoroughly eliminated.
Owner:张珩 +1
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