(under subclass 332) Subject matter wherein the threading system includes a mechanism for directing positively or negatively pressurized air in proximity to the carrier to influence progression of the carrier along the path.
SEE OR SEARCH CLASS
226, Advancing Material of Indeterminate Length, may include a nominal recitation of a supply or take-up coil (e.g., less than a support for such a coil or a cooperative relationship between a tension or exhaust detector and reel driving or reel stopping means, etc.),
97.1+, for fluid current means to advance the material.
