Patent
Electromagnetic bearing means
Karl Boden,Dietrich Scheffer +1 more
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TLDR
A contact-free bearing system for radially supporting a rotor, rotatable at high speed, with respect to a stationary member comprises a magnetic system including electromagnetic bearings as mentioned in this paper, which includes an endless ferromagnetic core carrying a spiral or toroidal winding.Abstract:
A contact-free bearing system for radially supporting a rotor, rotatable at high speed, with respect to a stationary member comprises a magnetic system including electromagnetic bearings. The electromagnetic bearings includes an endless ferromagnetic core carrying a spiral or toroidal winding which includes or acts as at least three separate coils. Electrical signals, dependent upon the radial deviation in the position of the rotor from a predetermined position are applied to said winding such that the coils produce magnetic fields which are applied to the rotor and are of different magnitude or direction.read more
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Patent
Magnetically suspended miniature fluid pump and method of making the same
TL;DR: A rotary pump for pumping fluids through a patient having a housing with an internal region, a stator member and an impeller positioned within the housing and having impeller blades, wherein the impeller is magnetically suspended and rotated, and wherein the geometric configuration of the rotary pumps is sized and proportioned to minimize stagnant and traumatic fluid flow within the pump as discussed by the authors.
Patent
Blood pump having a magnetically suspended rotor
TL;DR: In this article, a motor stator (508) that drives the rotor may be disposed within the housing in order to more easily dissipate heat generated by the rotor (508).
Patent
Magnetic rotor bearing
Gunter Bramm,Pavel Novak +1 more
TL;DR: In this article, a magnetic rotor bearing for suspending a rotor in a contact-free manner, in particular the rotor of an axial- or radial-centrifugal blood pump, comprising a permanent and electromagnet arrangement, was presented.
Patent
Tool holding spindle assembly particularly for a grinding machine
Mats C. D. Heijkenskjold,Olle (Olof) J. G. Hedberg,Vello Klaassen,Sture V. Larsson,Helmut Habermann,Maurice Brunet +5 more
TL;DR: The tool-holding spindle assembly, particularly for a grinding machine, comprises means for supporting the shaft of the spindle and a power drive, for example an electric motor for rotating the spindles.
Patent
Rotary head assembly
TL;DR: In this article, a rotary head assembly with a fixed cylindrical part and a rotatable rotary member is described, and a pump-out type of spiral group is formed on part or all of the periphery of either of the surfaces of the opposed rotary unit formed between the stationary cylinder and the rotating member.
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Patent
Magnetic suspension apparatus
TL;DR: MAGNETIC SUSPENSION APPARATUS as mentioned in this paper was used for suspending a movable body between a pair of electromagnets. But it was not used in the case of a single person.