Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1986-04-22
1987-05-19
Prunner, Kathleen J.
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
55418, 55385A, 55DIG29, 98 4011, 98 413, 98DIG10, 1376253, 251251, 251368, B01D 4642
Patent
active
046664777
ABSTRACT:
An adjustable damper or air flow control valve for clean room systems, laminar flow benches, filter diffusers, fan/filter units and the like includes a fixed plate defining a plurality of rows of apertures. The plate is fabricated from an aluminum-clad fiberboard. A movable, foam plate is positioned on the fixed plate. The foam plate is fabricated from a cross linked polyethylene foam and also defines a plurality of apertures. The foam conforms to the fiberboard plate and prevents cross flow between adjacent apertures. Relative movement between the two plates moves the apertures into and out of alignment to control the flow of air to a filter.
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Prunner Kathleen J.
Weber Technical Products, Division of Craig Systems Corporation
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