C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
23/370, 148/36.2
C03B 25/04 (2006.01) B01J 8/46 (2006.01) C03B 27/00 (2006.01) C03B 27/052 (2006.01) C03B 29/04 (2006.01)
Patent
CA 1102097
ABSTRACT A bed of gas-fluidised particulate material is operated by extracting gas from a localised region of the bed so as to produce an unfluidised static condition of that region of the bed. The bed may be used for treating an article, for example thermally toughening a glass sheet which is lowered into the bed through the unfluidised region. The unfluidised particulate material may be sufficiently packed to obturate an opening com- municating with the bed.
311965
Marsh Brian
Wiechers Willem
Wright Donald C.
Young Rodney L.d.
Meredith & Finlayson
Pilkington Brothers Limited
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