3873013 is referenced by 44 patents and cites 7 patents.

An air bar for floating web material and which includes two slot nozzles, one along each of its longitudinal edges and which nozzles direct air streams toward the web and partially toward one another. The bar has a lengthwise center exhaust means for immediately removing a percentage of the two converging air streams at the center of the air bar and directing them into a separate exhaust chamber within the air bar for ultimate discharge out of the opposite ends of the air bar.

High velocity web floating air bar having center exhaust means
Application Number
Publication Number
Application Date
October 4, 1973
Publication Date
March 25, 1975
Stibbe Paul H
Nilles James E
TEC Systems
B65h 17/32
B65H 23/24
B65H 23/04
F26B 13/20
F26B 13/10
B41F 23/00
B41F 23/04
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