| 摘要 |
<p>1,248,467. Separating solids from gas. M. BERZ and W. BERZ. 15 Nov., 1968 [22 Nov., 1967; 19 March, 1968], No. 20965/70. Divided out of 1,248,466. Heading B1T. The disclosure corresponds to that associated with Fig. 4 of Specification 1,248,466. The claims are directed to a housing divided into upper and lower chambers by a filter layer, there being rotatable means in the upper chamber to agitate the layer, and means for backwashing the layer.</p> |
