Drying apparatus

Details Drying apparatus Drying apparatus

2005-08-02

2005-08-02

Rinehart, Kenneth (Department: 3749)

Drying and gas or vapor contact with solids

Process

Gas or vapor pressure varies during treatment

C034S406000, C034S407000

Reexamination Certificate

active

06922912

ABSTRACT:
The invention provides drying apparatus including a first chamber for receiving articles to be dried and having an outlet, a second chamber having an outlet, and a fan having a fan inlet and a fan outlet, the fan inlet communicating with the outlet of the first chamber and the fan outlet communicating with the second chamber. The apparatus further includes a vacuum pump communicating with the outlet of the second chamber so that transfer of thermal energy can take place between the first and second chambers. The invention also provides a method of drying including placing articles into a first chamber, evacuating a significant proportion of the air from the first chamber and from a second chamber, evacuating water vapor from the first chamber to the second chamber, allowing the water vapor to condense in the second chamber, and transferring thermal energy from the second chamber to the first chamber.

REFERENCES:
patent: 2440416 (1948-04-01), Proudfoot
patent: 3010216 (1961-11-01), Ravet
patent: 4347671 (1982-09-01), Dias et al.
patent: 5459945 (1995-10-01), Shulenberger
patent: 33 21 245 (1984-12-01), None
patent: 1.201.674 (1960-01-01), None
patent: 2083190 (1982-03-01), None

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