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Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Class 310/156.16 - Spring mounted


Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter including at least one resilient element
No. of patents: 18
Last issue date: 10/23/2007


NumberTitleIssue Date
7285890Magnet retention on rotors
Permanent magnets are mounted on a rotor of an electrical motor by an apparatus that keeps an adhesive bonding layer between the magnet and rotor in compression over wide variations in temperature and speed of rotation. The mechanical stresses on the magnets are con...
10/23/2007
7049723DC motor
The disclosure describes a DC motor including a rotor unit arranged within the motor body and has a cylindrical field magnet fixed to an outer surface of a holder. The holder has a rotating shaft press-fitted through the center, and the cylindrical field magnet has ...
05/23/2006
7038344Housing comprising at least one functional element of an electrical machine
Functional elements are difficult to mount on a housing based on known methods, on which at least one functional element for an electric motor is situated. A housing is configured such that functional elements to be mounted on the housing are mountable on the housin...
05/02/2006
6995488Permanent magnet field small DC motor
A permanent magnet field small DC motor includes an arc-shaped rare earth magnet of maximum thickness 1 mm or less fabricated by compression molding from rare earth iron based melt-spun flakes and a binder. The magnet is provided with a certain specific portion at b...
02/07/2006
6949864Rotary electric motor having concentric annular members
A rotary electric motor in which rotor and stator members are each configured as annular rings, concentric with respect to each other, about an axis of rotation. Either of the rotor or stator members is formed of groups of electromagnet poles, the groups substantial...
09/27/2005
6891295Flywheel magneto generator
A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w...
05/10/2005
6844646Electric motor
An electric motor including a rotor with a generally cylindrical rotor wall and a plurality of magnetic field producing elements mounted on an inside surface of the rotor wall, the rotor being mounted for rotation around a central stator, wherein the magnetic field ...
01/18/2005
6836954Rotor for an electronically commutated motor and improved method for the mass production thereof
Rotor for an electric motor that comprises a core (1), segments of a cylinder (5, 6, 7) made of magnetizable materials, a substantially cylindrical retaining wrapper (10) whose end portions are joined to at least a pair of plane elements (8, ...
01/04/2005
6771000Electric rotary machine and power generation systems using the same
The present invention provides an electric rotary machine including a rotor having a field magnet provided on a shaft, the field magnet having magnetic poles of sequentially different polarities arranged in a rotational direction, a second field magnet with magnetic...
08/03/2004
6747383Generator with hydraulically mounted stator rotor
A high speed generator with a hydraulic rotor mounting system that dampens rotor vibrations at the rotor's critical speeds. Oil is supplied to a gap formed between the outer race of the rotor bearing assembly and the bearing liner. The oil provides soft bearing supp...
06/08/2004
6492755Electric motor
In an electric motor, a plurality of magnet shells (4, 6) arranged on a rotor (2) is preloaded against the core (8) by springs (11, 13) which engage in a core (8) of the rotor (2). The springs (11, 13) have a shape which corresponds to the magnet shells (...
12/10/2002
6465925Rotary electric machine having auxiliary poles
A rotary electric machine includes a plurality of permanent magnet main poles disposed on an inner periphery of a yoke and a plurality of auxiliary poles respectively disposed between neighboring two of the main poles via magnet fixing members and a plura...
10/15/2002
6181035Permanent magnet electric motor having reduced cogging torque
A brushless electric motor has a rotor carrying a plurality of permanent magnet elements uniformly spaced apart and a stator armature separated from the rotor by a circumferential air gap of uniform thickness and having a plurality of uniform slots provid...
01/30/2001
6175176Electric motor
An electric motor with a stator having two magnetic shells (2, 3) has a spring element (6) which prestresses the magnetic shells (2, 3) against a stop fixed to the housing. The spring element (6) bears on both magnetic shells (2, 3) with in each case two ...
01/16/2001
5753985Electric motor with oscillating rotary output and controlled amplitude
Disclosed is an AC electric motor with oscillating rotary output, a permanent magnet rotor having radially magnetized magnets, and feedback control of oscillation amplitude. Amplitude control is accomplished without a separate amplitude sensor by using an...
05/19/1998
4694210Brushless DC motor and sensorless drive arrangement therefor
A resilient coupling between the rotor and output shaft of a brushless DC motor cooperates with a sensorless drive arrangement that obtains rotor position information from the voltage induced in the stator windings of the motor to reduce the effective ine...
09/15/1987
4577116System for providing electrical energy to a missile and the like
A system for providing electrical energy to a missile and the like. The system including a turbine driven by a gas supply on board the missile. The turbine driving a generator thereby eliminating batteries and other electrical power sources heretofore use...
03/18/1986
4472650Rotor of high-speed electric machine
A rotor of a high-speed electric machine comprises a shaft 1, a magnetic ring 2 enclosing the shaft 1, a retaining ring 3, and permanent magnets 6 sisposed between the retaining ring 3 and the magnetic ring 2. The retaining ring 3 is secured to the shaft ...
09/18/1984
 
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