초록 ▼

Debubbling apparatus may have many uses, for example, in the manufacture of photographic materials where bubbles are to be removed from liquid photographic emulsion prior to application of such emulsion to a supporting substrate, in the food processing industries or in confectionery manufacture wher

Debubbling apparatus may have many uses, for example, in the manufacture of photographic materials where bubbles are to be removed from liquid photographic emulsion prior to application of such emulsion to a supporting substrate, in the food processing industries or in confectionery manufacture where air bubbles are undesirable because they may harbour germs, or in blood transfusion apparatus where air bubbles present a potentially lethal hazard. Described herein is a debubbling apparatus which comprises a vessel having an outlet and an inlet spaced from one another longitudinally of the vessel, means for imparting rotational movement, about a longitudinal axis of the vessel to liquid passed through said vessel from said inlet to said outlet, and means for transmitting a beam of ultrasound along the axis of said vessel in the direction towards said inlet, from a location closer to said outlet than to said inlet.

대표청구항 ▼

[ We claim:] [1.] A debubbling apparatus comprising:(a) a vessel operating at a pressure of at least about 3 psi, said vessel having a liquid inlet through which a liquid is introduced, a first liquid outlet and a second liquid outlet, said liquid inlet being positioned proximate to a first end of s

[ We claim:] [1.] A debubbling apparatus comprising:(a) a vessel operating at a pressure of at least about 3 psi, said vessel having a liquid inlet through which a liquid is introduced, a first liquid outlet and a second liquid outlet, said liquid inlet being positioned proximate to a first end of said vessel and said first liquid outlet being positioned proximate to a second end of said vessel, said liquid inlet angled to cause liquid introduced therethrough into said vessel to travel a spiral path through said vessel toward said first liquid outlet;(b) an ultrasonic horn extending into said vessel from said second end, said ultrasonic horn terminating at an upper face which is short of said first end and said liquid inlet, said ultrasonic horn transmitting ultrasonic energy along a longitudinal axis of said vessel toward said second liquid outlet driving air bubbles entrained in the liquid toward said second outlet; and(c) a liquid stream drawn through said second liquid outlet containing air bubbles entrained therein.