05149401 is referenced by 20 patents and cites 7 patents.

Method and system for applying steam to a paper forming web for the purpose of heating the web to improve the quality of the paper, and withdrawing steam through the use of a vacuum opposite the steam shower, by the simultaneously controlled removal of steam at equally spaced increments by the use of a computer based control system. The computer based control system includes a selectively actuable stepper motor, to effectuate the simultaneous opening of both the steam valve and opposing withdrawal means valve. The system includes a coanda nozzle to cause steam to travel between the sheet and the adjacent surface of the apparatus in a direction opposite to the direction of travel of the sheet and also includes steam impingement nozzles. The apparatus includes devices for creating, housing and providing a supply of steam and a supply of vacuum.

Title
Simultaneously controlled steam shower and vacuum apparatus and method of using same
Application Number
487772
Publication Number
5149401
Application Date
October 29, 1991
Publication Date
September 22, 1992
Inventor
James A Bourque
Sudbury
MA, US
Eric T Langevin
Northboro
MA, US
Agent
Lorusso & Loud
Assignee
Thermo Electron Web Systems
MA, US
IPC
D21F 5/14
F26B 21/06
F26B 13/02
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