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:
Apr. 13, 2021
Filed:
Jan. 06, 2016
Ishigaki Company Limited, Tokyo, JP;
Manabu Yamashita, Kagawa, JP;
Masakazu Morita, Kagawa, JP;
Hiroyuki Mino, Kagawa, JP;
Yasuaki Nishihara, Kagawa, JP;
Atsushi Yanai, Kagawa, JP;
Ryosuke Tamauchi, Kagawa, JP;
Yasutaka Suetsugu, Kagawa, JP;
Masayoshi Katayama, Kagawa, JP;
ISHIGAKI COMPANY LIMITED, Tokyo, JP;
Abstract
A recovery device is configured to recover specific material as a dewatering aid from sludge generated in a sewage treatment process. The recovery device includes: a grinder configured to fragment a solid in the sludge to obtain prepared sludge; a separator configured to separate hardly decomposable organic matter and easily decomposable organic matter from the prepared sludge; and an extractor configured to continuously extract hardly decomposable organic matter having specific properties as the dewatering aid from the hardly decomposable organic matter separated by the separator.