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Class 335/291 - Lifting or attracting type (e.g., for lifting pigiron or pulling hairpins)


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter including electromagnets which are utilized
No. of applications: 9
Last issue date: 09/29/2011


Application No.Application TitleIssue Date
20110234343Cylindrical Magnetic Levitation Stage
The present invention provides a cylindrical magnetic levitation stage which includes a cylindrical substrate used to form micro-patterns of various arbitrary shapes on a large-area semiconductor substrate or display panel substrate, a cylindrical substrate, a combinati...
09/29/2011
20100201468LIFTING AND TRANSPORTING STACKS OF FERROMAGNETIC PLATES
A stack of ferromagnetic sheets is gripped, lifted, and transported by first engaging with an uppermost sheet of the stack a plurality of magnet assemblies of a magnetic grab, each assembly having at least one electromagnet, then electrically energizing the electromagne...
08/12/2010
20100052832PERMANENT ELECTROMAGNETIC INDEXING APPARATUS
A permanent electromagnetic indexing apparatus includes a chassis, a carrier pivoted to the chassis, and a plurality of magnetic sets. Each of the magnetic sets includes a first permanent magnet, a magnetic-conductive member, a second permanent magnet, and a magnetizing...
03/04/2010
20090160590METHOD AND APPARATUS FOR CONTROLLING A LIFTING MAGNET SUPPLIED WITH AN AC SOURCE
A magnet controller supplied by an AC source controls a lifting magnet. Two bridges allow DC current to flow in both directions in the lifting magnet. During “Lift”, relatively high voltage is applied to the lifting magnet until it reaches its cold current. Then vol...
06/25/2009
20090014594JACK SYSTEM WITH AUTOMATIC LOCKING OF THE PISTON IN HIGH POSITION, ESPECIALLY FOR AIRCRAFT
This invention provides a jack system (2) provided with a cylinder (14) provided with stop means (32). It also comprises:

a body (36) hinged about an end (18) of the piston, the body comprising stop means ...

01/15/2009
20080252405Magnet Arrangement for a Magnetic Levitation Vehicle
A magnet arrangement for a magnetic levitation vehicle is described. The magnet arrangement comprises a plurality of magnet poles (11) being combined to form groups (11a to 11f), wherein according to the invention each group contains o...
10/16/2008
20080190908Apparatus And Method For Levitation Of An Amount Of Conductive Material
An apparatus for levitation of an amount of conductive material including a coil for keeping the material in levitation using a varying electric current in the coil. The apparatus has two coils, a first coil and a second coil, both coils generating an alternating electr...
08/14/2008
20080129433Load-Lifting Magnet
A load-lifting magnet for lifting, turning, and transporting a wound body comprising a soft-magnetic material, in particular a coil, with a plurality of magnetic poles. In accordance with the invention, magnetic poles are arranged at right angles to each other on a comm...
06/05/2008
20080094158Locking device
The disclosure relates to a locking system with an electromagnet and a yoke plate that closes the magnetic circuit of the electromagnet. In the latter, the electromagnet is fastened with a fastening element to pivot around a point on a central axis and is tightly fasten...
04/24/2008
 
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