Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Process of storage or protection
Patent
1991-03-22
1991-10-29
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Process of storage or protection
427 1, 427 4, 427 22, 437247, 437248, 437249, 437946, 437949, 437950, B01J 1900
Patent
active
050614444
ABSTRACT:
Objects are protected against deposition of fluid-borne particles in a diameter range of from one-hundredth of a micron to several microns from a convection boundary layer flow, by establishing a temperature difference between surfaces of these objects and fluid adjacent thereto such that the temperature of these surfaces is higher by not more than 10K than that of the adjacent fluid, to such an extent that the thermophoretic effect dominates the combined effects of Brownian motion and gravitational deposition of the particles in the boundary layer flow. Highly advanced articles of manufacture are produced when those surfaces are changed structurally, such as during manufacture of integrated circuits, while the thermophoretic effect dominates the latter combined effects.
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Cass Glen R.
Nazaroff William W.
California Institute of Technology
McMahon Timothy M.
Warden Robert J.
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