| 摘要 |
An electromagnet having a 360 DEG flux pattern for attracting magnetizable items over the entire surface area of the magnet is disclosed. The electromagnet includes an outer casing having a circumferential portion constructed of non-magnetizable material, a core portion of magnetizable material, and a means for generating magnetic flux lines contained within the casing. The core is disposed generally radially within the coil and includes an inner core portion and a first magnetic pole portion extending axially from the coil. The first magnetic pole comprises a bottom wall depending from the inner core and being radially coextensive with at least a portion of the coil. The core also includes a second magnetic pole portion extending axially from the coil opposite of the first magnetic pole portion and comprising a top wall depending from the inner core which is radially coextensive with at least a portion of the coil. The core portion directs the flux lines transverse of the circumferential portion for attracting magnetic material to the surface area of the magnet. The circumferential portion comprises a side wall interposed between the top wall and the bottom wall to define a generally smooth outer surface side wall area for the magnet.
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