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. 22, 2012
Filed:
Sep. 02, 2008
Minoru Ishida, Tomakomai, JP;
Masami Kashibo, Tomakomai, JP;
Munetaka Sonoda, Tomakomai, JP;
Tomoaki Koyanagi, Tokyo, JP;
Tatsumi Hosaka, Tokyo, JP;
Yoshihiko Aikawa, Shizuoka, JP;
Minoru Ishida, Tomakomai, JP;
Masami Kashibo, Tomakomai, JP;
Munetaka Sonoda, Tomakomai, JP;
Tomoaki Koyanagi, Tokyo, JP;
Tatsumi Hosaka, Tokyo, JP;
Yoshihiko Aikawa, Shizuoka, JP;
Nippon Paper Industries Co., Ltd., Tokyo, JP;
Aikawa Iron Works Co., Ltd., Shizuoka, JP;
Abstract
A flotation apparatus F includes a tankfor receiving a liquid raw material, and introduces air into the tankto generate bubbles for adsorbing print ink in the liquid raw material to the bubbles, thereby floating and separating the print ink. The flotation apparatus F includes a circulating device for circulating the liquid raw material by raising and then lowering the liquid raw material in the tank, an air supply tubefor supplying air into the tank, and an agitating memberprovided in the tankfor taking the air from the air supply tubeand agitating the air for forming the air into fine bubbles. The agitating memberhas a rotary shaftheld horizontally and a plurality of membershorizontally separately provided around an outer periphery. On a cross section transverse to a longitudinal direction of the tank, an outer periphery of the agitating memberis arranged on a lower side of the tankand in a position at a downstream side of the liquid raw material relative to a vertical line V passing through a center of the tank