Title:
DEFOAMING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/052496
Kind Code:
A1
Abstract:
Provided are a defoaming method and device that use laser-induced breakdown. The provided method and device make it possible to shorten the focal distance, thereby improving laser light convergence, and increase the utilization efficiency of sound waves that contribute to defoaming. Pulsed laser light is focused and shined into a space inside an acoustic waveguide (4), thereby generating pulsed sound waves from the illumination point (7). The pulsed sound waves propagate down the acoustic waveguide as planar waves, then propagate beyond an open end (16) as spherical waves, and break up a foam outside the open end of the acoustic waveguide.
Inventors:
TAKENOUCHI Ken (22-4 Okazawa-cho, Hodogaya-ku, Yokohama-sh, Kanagawa 62, 〒2400062, JP)
Application Number:
JP2010/068676
Publication Date:
May 05, 2011
Filing Date:
October 22, 2010
Export Citation:
Assignee:
TOYO SEIKAN KAISHA, LTD. (3-1 Uchisaiwaicho 1-chome, Chiyoda-ku Tokyo, 22, 〒1008522, JP)
東洋製罐株式会社 (〒22 東京都千代田区内幸町１丁目３番１号 Tokyo, 〒1008522, JP)
東洋製罐株式会社 (〒22 東京都千代田区内幸町１丁目３番１号 Tokyo, 〒1008522, JP)
International Classes:
B01D19/02; B65B3/22; H01S3/00
Attorney, Agent or Firm:
OSHIRO Shigenobu et al. (Room-504 Kozato Kaikan, 1-18-14 Nishi-shimbashi, Minato-k, Tokyo 03, 〒1050003, JP)
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