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. 19, 2005
Filed:
Aug. 21, 2002
Applicant:
Toshiaki Mizuno, Aichi, JP;
Inventor:
Toshiaki Mizuno, Aichi, JP;
Assignee:
Nidek Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B001/00 ; B24B007/30 ;
U.S. Cl.
CPC ...
Abstract
A grinding water tank unit which enables reuse of grinding water that has been used for processing an eyeglass lens, includes: a tank in which the grinding water is stored; a filter, disposed in the tank, for filtering the grinding water to be separate from processing debris, the filter having a sealed hollow portion; a first water suction pump; and a first water suction passage which connects the hollow portion to the first pump, and through which the grinding water filtered by the filter is sucked by suction of the first pump.