Web dryer solvent vapor control means

Details Web dryer solvent vapor control means Web dryer solvent vapor control means

1982-02-19

1984-07-31

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

For diverse operations on treated material

34114, 34122, F26B 1318

Patent

active

044621698

ABSTRACT:
A web that is coated or imprinted on both surfaces has a straight stretch that emerges from a dryer enclosure in which the web is heated and extends to a chill roll around which a curved portion of the web is partially wrapped. A duct-like tunnel surrounding said stretch has its outer end near the chill roll. In a preferred embodiment, a nozzle at the outer end of the upper tunnel wall blows a blade-like jet against the curved portion of the web to force it into intimate engagement with the chill roll periphery and thus prevent accumulations of solvent vapor condensate thereon. Part of the jet air deflected by the web is guided inwardly along the web by the upper tunnel wall. Air outlets just above the lower tunnel wall, near its outer end and spaced at intervals across it, provide for inward air flow under the web. Practically all vapor emanating from the web after it leaves the dryer is thus driven into the dryer.

REFERENCES:
patent: 2157388 (1939-05-01), MacArthur
patent: 3071869 (1963-01-01), Latimer et al.
patent: 3452447 (1969-07-01), Gardner
patent: 3733711 (1973-05-01), Haythornthwaite
patent: 4263724 (1981-04-01), Vits
patent: 4369584 (1983-01-01), Daane

Affiliated with

Also associated with

Rating

Web dryer solvent vapor control means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Web dryer solvent vapor control means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Web dryer solvent vapor control means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-179084