Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1987-03-06
1989-07-04
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34156, 226 97, F26B 1300
Patent
active
048437310
ABSTRACT:
The invention relates to a device for floatably guiding webs of material by means of a gaseous or liquid medium. The device comprises one or more elongate flow elements having a surface which is arched more particularly convexly to the web of material which are disposed in succession in the direction of travel of the web and transversely thereof, and nozzles so disposed in rows at a distance from such surface that the free jets emerging from the nozzles blow on the surface of the flow member at a shallow approach flow angle and are converted on the surface into wall jets, before they blow on the web of material, more particularly by reversal of flow. More particularly nozzles associated with both longitudinal edges of each flow member and delivering free jets directed towards one another produce on contrast with conventional devices, which operate on the supporting surface or air cushion principle, improved supporting behavior with a strongly progressive characteristic in the proximal zone of the web of material and a relatively steep entry into the zero value of the supporting force.
REFERENCES:
patent: 2144919 (1939-01-01), Gautreau
patent: 3957187 (1976-05-01), Puigrodon
patent: 3999696 (1976-12-01), Reba et al.
patent: 4055003 (1977-10-01), Sack
Bennet Henry A.
Dunn Michael L.
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