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Patent Searching and Data


Matches 701 - 750 out of 5,006

Document Document Title
WO/1993/024986A1
The coupler comprises two rotary elements (20, 21, 22 and 28), one of said elements (20, 21, 22) surrounding the other (28), an exciting coil (27) having a d.c. supply and surrounding the axis of rotation so that one of said elements (20...  
WO/1993/011372A1
Disclosed are devices for influencing and/or controlling relative motion between members, such as vibration damping or absorbing devices, clutches and brakes. The devices comprise a magnet (18) on one member (14) and a field cooled super...  
WO/1993/011381A1
A sealing arrangement is provided for preventing fluid leakage along the drive shaft (23) of a centrifugal pump (40) driven by an electric motor (21). The sealing arrangement is in the form of three separate sealing assemblies: a w-shape...  
WO/1993/009590A1
A guide cylinder (10) having a box-shaped section and made of a non-magnetic material is disposed inside a braking drum (7) coupled to a rotary shaft (1). A large number of ferromagnetic plates (15) are connected to an outer peripheral w...  
WO/1993/009589A1
A novel rotary apparatus wherein a composite rotor which comprising a plurality of ring-like rotors arranged concentrically is rotated at a high speed by utilizing magnetic forces. Around a center rotor, concentrically arranged are, away...  
WO/1993/007387A1
A device and method for efficiently rotating a rotating body in a layer structure consisting of a plurality of rotating plates arranged in layers and intends to provide a device for and method of rotation capable of efficiently convertin...  
WO/1993/001647A1
The method allows to move, for example with a rotative motion, a member or a group of members by moving another member or group of members with a reciprocating rectilineal motion by means of the interaction between magnets (1, 2) or grou...  
WO/1992/005402A1
An apparatus for measuring change of position of a rotor in a drive system comprising a drive rotor and a driven rotor generally concentrically mounted with respect to the drive rotor, the drive and driven rotors being magnetically coupl...  
WO/1992/005622A1
The proposal is for an angle sensor, preferably of the contactless type, especially for use in motor vehicles, with a part (10) carried by the arrangement to be monitored and a measuring device (12) to determine the rotation angle (13, $...  
WO/1991/013486A1
A resonably priced, 2 parallel pole synchronous motor, suitable for high temperatures, for use on a direct current network, has a mechanical commutation device. This device consists of a commutator (44) located coaxially to the rotor (11...  
WO/1991/009444A1
A method for magnetic conversion of movements of a controlling element consists in forming a magnetic circuit (1) with gaps (2, 3) in which are placed, respectively, a controlling element (10) and a controlled element (11). The gap (2) i...  
WO/1991/002399A1
An improved high speed reluctance type torque coupler (10) having adjustable maximum pullout torque characteristics includes a pair of rotors (12, 18) one (18) including a permanent magnet (22) and the other (12) including a pair of adju...  
WO/1990/003062A1
A torque coupling device (10) of the synchronous reluctance type having a magnetic flux generating device (22) and concentric rotors (16, 18), each rotor having a sleeve of diamagnetic material (42, 46) including a plurality of flux wind...  
WO/1989/005055A1
A brake in which a rotor composed of a ferromagnetic material and an electromagnet are so provided that the rotor intersects the magnetic flux to produce the braking power by the eddy current generated in the rotor. The rotor is provided...  
WO/1989/002668A1
In an electric machine, magnets are arranged in circle or in line, with their magnetization directions at an angle with respect to each other, in such a way that a polygonal field is created inside the magnet arrangement and stray fields...  
WO/1989/002184A1
In a contact-free linear drive, the stationary guiding part is designed as a profile part (2) of which the magnetic material in the region of the spirals (3, 4) approaches the latter (8, 11, 17) and forms a recoil to the next spiral at a...  
WO/1988/008635A1
A brake comprising an electromagnet and a rotor composed of a ferromagnetic material, wherein a brake force is generated by eddy currents created in the rotor when it intersects the magnetic fluxes. A thin metal layer (30) consisting of ...  
WO/1988/008636A1
The invention provides an electrical machine having a rotor (5) rotatable on a shaft (4) between two stators (21). The stator can be energized by A.C. passed through coils (24) so that the machine will act as a motor and by D.C. passed t...  
WO/1987/006779A1
A rotary electric machine in which heat is generated due to electrical eddy currents when mechanically driven. The machine includes a rotor (3) of which the magnetic reluctance and electrical resistance are low. It lies between two stato...  
WO/1987/004576A1
A magnetic rotary device comprises first and second rotors that are arranged in parallel close to each other, and that are rotatably supported. The first and second rotors are coupled to each other so as to turn in the opposite direction...  
WO/1987/001248A1
A magnetic clutch, in which a partition plate (5) is provided between a driven-side magnet (4) and a driving-side magnet (3) and bearing members (13, 14) are placed between the respective sides of the partition plate (5) and the driven-s...  
WO/1987/000988A1
In order to obtain a favourable relationship between current consumption, braking action and construction length, an eddy current brake for motor vehicles, built into the drive shaft, in particular a shaft with a universal joint, and car...  
WO/1987/000990A1
The housing hub (5) of an eddy current brake, designed for installation in the drive shaft of a motor vehicle, contains a brake shaft (9) on which is fixed a rotor (6) and which can be coupled to the drive shaft. The housing hub (5) cont...  
WO/1987/000989A1
In order to install an eddy current brake in the universal joint shaft of a motor vehicle, use is made of support members (86) which can be fixed to the longerons (85) of the chassis and each of which can be associated with a mounting pl...  
WO/1986/006293A1
A disposable biomedical rotating filtration system, for processing fluids in a closed environment includes a rotor (20) mounted for rotation on a pivot pin (29), a seal (44) between the rotor (26) and the pivot pin (29), and external per...  
WO/1986/003901A1
An hysteresis ring comprises a jacket (2) made of hard magnetic alloy radially held and centered about a shaft by a ring disc-like bottom part (1) which may be made of a non magnetic alloy. A joint and clamp connection, achieved by a rol...  
WO/1986/002917A1
The closure head comprises a centering cylinder (3) which is used to screw the cap (2) to the bottle (1) and which is suddenly braked at the end of the screwing operation. It is connected with a bell (5) which carries an upper crown of p...  
WO/1984/000448A1
The method allows to transform an oscillatory motion having optionally a variable amplitude, such as a motion occurring in free piston engines, into a uniform rotation by transforming, by means of oscillations, equidirectional magnetic f...  
WO/1983/000199A1
Pressurized fluid (31) is pumped into a hollow, circular tube (1) made of non-magnetic material to drive magnetic pistons (5) sized to fit snugly within and to travel inside such circular tube (1). Such magnetic pistons (5) are magnetica...  
WO/1982/001149A1
Machines for turning and polishing contact lenses. A drawback experienced with known machines for this purpose is that vibration created by a prime mover, e.g. an electric motor, is transmitted to a driven rotatable support for a lens. T...  
WO/1981/001727A1
A fluid-handling apparatus having a magnetic drive comprises a rotatable driven member (22) and a driven member (44) provided with blades (48) for imparting motion to a fluid and mounted on a stationary shaft (30) forming a one-piece uni...  
WO/1981/001633A1
A motor system provides from a primary power source mechanical energy to an output shaft. The system has a plurality of electromagnetic devices (67A, 69A) mounted around a rotor for magnetically rotating it. A magnetic clutch (70, 72, 82...  
JP6880284B2
Described herein are latching devices where relative speed of movement between members is in part controlled or reduced via eddy current formation and in part controlled or relative motion stopped via a latch arrangement. Various embodim...  
JP6879159B2
To provide an eddy current type speed reduction device capable of suppressing a windage loss and securing a radiation performance.A speed reduction device comprises: a rotor (1); a plurality of fins (8); a plurality of permanent magnets ...  
JP2021083272A
To execute a stop operation from a start point to an end point of a drive range, maintain the stop operation, and start each operation from the stopped state without applying an external force other than a drive input of an electric moto...  
JP2021079752A
To provide a propulsion device having resistance to surrounding chemicals and the like, and a moving body in a liquid provided with the propulsion device. A propulsion device 10 for submersion has a main body member 11, a blade portion 1...  
JP6872464B2
To provide a control system of a brake force adjustment device which does not cause an increase of a power consumption amount even if a large number of the brake force adjustment devices are installed.A control system of a brake force ad...  
JP6872456B2
To provide a braking force adjustor capable of adjusting a magnitude of brake torque by remote operation.A braking force adjustor includes: a rotation shaft 3 for integrally rotating with a braking member 11; a stationary member 12 for r...  
JP2021512577A
The hysteresis clutch (10) according to the present invention has a pair of magnets (18) that are polarized in the opposite direction of the circumferential direction, and a magnetic pole piece (17) for deflecting a magnetic flux in the ...  
JP6870397B2
To provide an eddy-current type deceleration device where a fixing member for supporting a permanent magnet is fixed with sufficient strength, and to provide a manufacturing method thereof.An eddy-current type deceleration device include...  
JP2021069272A
To provide an eddy current type speed reducer capable of extending a braking time by suppressing a heating rate at a central portion in an axial direction on an inner peripheral surface of a drum ring while ensuring braking torque. An ed...  
JP6863465B2
An eddy current damper (1) includes a screw shaft (7) movable in an axial direction, a plurality of first permanent magnets (3), a plurality of second permanent magnets (4), a cylindrical magnet holding member (2), a cylindrical conducti...  
JP2021052585A
To provide an eddy current brake which enables an ability to brake a large range of torque and an ability to prevent on / off of braking. The vortex current brake 1 is configured to have at least two rotation degrees of freedom, and the ...  
JP6852814B2
A decelerating apparatus includes a brake member (1), primary permanent magnets (3), secondary permanent magnets (4) and pole pieces (5). The primary permanent magnets (3) are arranged in a circumferential direction to face an inner or o...  
JP2021046883A
To provide a work vehicle provided with an eddy current damper and the eddy current damper, which can suppress the swing of the measuring device and can direct the measuring device in a desired direction. An eddy current damper 41 includ...  
JP2021045038A
To provide a compact, lightweight, long-life braking mechanism and reaction wheel. A frame, a rotating body arranged to face the frame, an electromagnet arranged between the frame and the rotating body, and an electromagnet attached to t...  
JP6843179B2
A damping assembly is described herein for use in a device having moving aerodynamic surfaces comprising: a first component 11 comprising a back iron 14 and at least one permanent magnet 12, said at least one permanent magnet 12 providin...  
JP6838060B2
It is provided a driving device for adjusting a vehicle part, in particular a tailgate, comprises an electric drive for driving the vehicle part, with an output shaft for transmitting an adjusting force to the vehicle part, and a first b...  
JP2021504616A
A servo mechanism for sliding the door of a furniture item will be described. The eddy current magnetic damper (80) that damps the door brakes the two transport bases (26) that are slidably mounted on the linear guide (20) that slidably ...  
JP2021017963A
To provide an eddy current damper capable of adjusting attenuation force easily.An eddy current damper 1 comprises a magnet holding ring 13, a plurality of permanent magnets 14, and a braking ring 15. The plurality of permanent magnets 1...  

Matches 701 - 750 out of 5,006