Stirring device

Details Stirring device Stirring device

1993-12-28

1995-09-12

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422224, 422225, 366116, 366118, 366120, 366127, 310321, 310329, B01F 1100

Patent

active

054494931

ABSTRACT:
Piezoelectric elements are attached to both sides of a flexible metal thin plate, thus forming a bimorph-type piezoelectric vibrator. A portion of the metal thin plate is extended to form a stirring blade. A suitable weight is attached to a part of the metal plate such that the amplitude of the blade is made greater than the amplitude of the vibrator itself. The voltage to be applied to the vibrator and the frequency are adjusted, and the vibrator is vibrated in a second-order mode. Thereby, the entire solution is moved simultaneously, vertical motion is caused, and the stirring efficiency is enhanced.

REFERENCES:
patent: 4026572 (1977-05-01), Yoshioka
patent: 4046515 (1977-09-01), de Leeuw
patent: 4211121 (1980-07-01), Brown
patent: 4373378 (1983-02-01), Fujishiro et al.
patent: 4537511 (1985-08-01), Frei
patent: 4550812 (1985-11-01), Mard
patent: 4602184 (1986-07-01), Meitzler
patent: 4612291 (1986-09-01), Dawes
patent: 4778279 (1988-10-01), Bodine
patent: 4780062 (1988-10-01), Yamada et al.
patent: 4912351 (1990-03-01), Takata et al.
Patent Abstracts of Japan, vol. 13, No. 29, (C-562)[3377]Jan. 23, 1989, & JP-A-63-232829, Sep. 28, 1988, T. Taniguchi, "Static Mixer".

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