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:
Jan. 26, 2010
Filed:
Aug. 31, 2007
Motoshi Tanaka, Gamagori, JP;
Akihiro Nagura, Okazaki, JP;
Kenichi Inaishi, Okazaki, JP;
Nidek Co., Ltd., Aichi, JP;
Abstract
A grinding water treating apparatus for separating a processing refuse from grinding water used for processing a periphery of an eyeglass lens, the grinding water being introduced from an eyeglass lens processing apparatus, the grinding water treating apparatus includes: a centrifugal separator that includes a dewatering tank having a bottom surface and a side surface and a drive source for rotating the dewatering tank, and springs out the grinding water to an upper portion of the dewatering tank by rotating the dewatering tank; and a drain pipe that introduces the grinding water from an upper portion of the dewatering tank. The centrifugal separator includes a filter arranged at the upper portion of the dewatering tank and having an opening inserted with the drain pipe for filtering the grinding water separated from the processing refuse by a centrifugal force generated due to rotation of the dewatering tank.