| 摘要 |
<p>1,239,494. Gas/liquid contact trays. SOC. POUR L'EQUIPEMENT DES INDUSTRIES CHIMIQUES SPEICHIM. 7 May, 1969 [9 May, 1968], No. 23390/69. Heading B1R. [Also in Division F2] A check valve for use in the tray 1 of a liquid/gas exchange column comprises a closure plate 2 movable relatively to a clip 3 which is plastically or elastically deformable to permit it to be passed through apertures 4, 5a, 5b in the plate and passage 9 in the tray 1. According to numerous modifications (Figs. 4-23 not shown) the clip can be of wire or sheet metal bent into a number of different shapes and it can be either movable or stationary relative to the tray.</p> |
