The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 1991
Filed:
Oct. 18, 1989
Shigemi Tanimoto, Osaka, JP;
Yoshiaki Eguchi, Osaka, JP;
Showa Aluminum Corporation, Osaka, JP;
Abstract
The device of the present invention includes a rotary shaft to be disposed in a liquid approximately vertically and rotatable about its axis. The rotary shaft has a gas channel axially extending therethrough. A bubble releasing-diffusing rotor is fixedly attached to the lower end of the rotary shaft and has a plurality of liquid agitating projections formed along its periphery at a specified spacing circumferentially thereof. The rotor is formed in its bottom face with a plurality of grooves extending radially from the central portion of the bottom face to the outer ends of the respective liquid agitating projections for centrifugally guiding the liquid when the rotary shaft is in rotation. The rotor has gas discharge ports communicating with the gas channel of the rotary shaft via a communication passage and equal in number to the number of the grooves for discharging the gas therefrom so that bubbles are entrained in the liquid centrifugally flowing out from the outer ends of the grooves in the peripheral surface of the rotor.