04201323 is referenced by 39 patents and cites 4 patents.

An air bar for floating a running web and having two spaced apart air nozzles through which pressurized air is directed against the web to form a supporting air cushion for the web. The nozzles are elongated slots extending transversely of the web and which are positioned at each edge of an intervening plate that also is located transversely of and closely adjacent the running web. The plate has curved edges, one located adjacent each of the slots whereby the air issuing from the slots tends to follow the curvature of the curved edges, thereby tending to direct the two issuing jets of air from the slots towards one another. The plate, commonly referred to as a Coanda plate, has a recessed portion between the slots and which is located inwardly or below the slots to thereby create a sufficient space between the web and the plate to cause generation of air turbulence, vortexes and eddy currents in the pressurized air zone or cushion between the web and the plate, which results in increased floatation pressure for the web and increased heat transfer of the material, such as printing, which is on the web.

Title
High velocity web floating air bar having a recessed Coanda plate
Application Number
5/950742
Publication Number
4201323
Application Date
October 12, 1978
Publication Date
May 6, 1980
Inventor
Robert A Daane
Green Bay
WI, US
Paul H Stibbe
DePere
WI, US
Agent
James E Nilles
Assignee
W R Grace & Co
NY, US
IPC
B65H 17/32
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