Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1981-06-24
1984-02-21
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 48, 34 54, 34 93, 34 77, F26B 2108
Patent
active
044321473
ABSTRACT:
Method and apparatus to control temperature and humidity in drying a material, for example green lumber, including a chamber to receive the lumber in stacked relation with air flow space between individual lumber pieces, a refrigeration system having a refrigerant compressor, evaporator and condenser where the condenser is disposed within the chamber, blower means to circulate air from the condenser over and through a stack of lumber, conduit means to communicate with the chamber for emission of air passing over the stack of lumber where the evaporator means is disposed to selectively receive the air flowing to the first conduit, solar cell means to receive radiant heat and having an inlet communicating with the first conduit and an outlet communicating with the chamber, third chamber means communicating with the first conduit and the chamber, damper means to selectively proportion air from the first conduit to the second and third conduits, controller means responsive to the temperature of the chamber to operate the damper to select the portions of the air stream from the first conduit supplied to the second and third conduits and for means to supply air from the chamber to the first conduit.
REFERENCES:
patent: 3940860 (1976-03-01), Unterreiner
patent: 3965696 (1976-06-01), Thomason
patent: 4205456 (1980-06-01), Ayers et al.
patent: 4250629 (1981-02-01), Lewis
patent: 4291833 (1981-09-01), Franchina
patent: 4325357 (1982-04-01), Wormser
patent: 4336692 (1982-06-01), Ecker et al.
Chen Peter Y. S.
Helmer Wayne A.
Rosen Howard N.
McConnell David G.
Schwartz Larry I.
Silverstein M. Howard
The United States of america as represented by the Secretary of
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