US PATENT SUBCLASS 242 / 548.4
.~.~.~ Noncontacting (e.g., magnetic or air)

Current as of: June, 1999
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242 /   HD   WINDING, TENSIONING, OR GUIDING

520  DF  CONVOLUTE WINDING OF MATERIAL {17}
548  DF  .~ With particular material guide or guard {3}
548.3  DF  .~.~ Proximate coil end {1}
548.4.~.~.~ Noncontacting (e.g., magnetic or air)

DEFINITION

Classification: 242/548.4

Noncontacting (e.g., magnetic or air):

(under subclass 548.3) Subject matter wherein the guide or guard exerts force or influence on the elongated material while remaining substantially free of contact with the material, typically by positive or negative air pressure or magnetomotive force against the material.

(1) Note. This subclass accepts a guide using a noncontacting force to cause alignment of material against a solid element (e.g., a spool flange).