04398925 is referenced by 76 patents and cites 13 patents.

A method is described for removing bubbles (14) from a liquid bath (12), such as a bath of molten glass to be used for optical elements. Larger bubbles are first removed by applying acoustic energy resonant to a bath dimension (H) to drive the larger bubbles toward a pressure well (30) where the bubbles can coalesce and then be more easily removed. Thereafter, submillimeter bubbles (50) are removed by applying acoustic energy of frequencies resonant to the small bubbles to oscillate them and thereby stir liquid immediately about the bubbles to facilitate their breakup and absorption into the liquid (16).

Title
Acoustic bubble removal method
Application Number
6/341406
Publication Number
4398925
Application Date
January 21, 1982
Publication Date
August 16, 1983
Inventor
Taylor G Wang
Glendale
CA, US
Daniel D Elleman
San Marino
CA, US
Eugene H Trinh
Los Angeles
CA, US
Agent
Thomas H Jones
John R Manning
Paul F McCaul
Assignee
The United States of America represented by the Administrator of the National Aeronautics and Space Administration
DC, US
IPC
B01D 19/00
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