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:
Dec. 12, 2000
Filed:
Mar. 02, 1999
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
451285 ; 451 60 ; 451446 ;
Abstract
The bottom of each collection groove for collecting a used abrasive slurry and a rinsing solution is formed like the letter V, an exhaust port is formed at the lowest position of the bottom of the groove, the collection pipe of a slurry supply unit and the collection pipe of a rinsing solution supply unit are connected to the exhaust port, and the collection pipe of the rinsing solution exhaust unit is connected to a suction pump for forcedly discharging the rinsing solution by suction.