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.:

US 8403728 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 26, 2013

Filed:

May. 28, 2010
Applicant:

Feng-tien Chen, Taichung, TW;

Inventor:

Feng-Tien Chen, Taichung, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 19/00 (2006.01); B24B 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A grinding/polishing machine includes first and second grinding units. The first grinding unit is mounted slidably on a column on a base support to move along a Z-axis direction, and has a first grinding wheel. The second grinding unit is mounted slidably on the first grinding unit to move along a Y-axis direction and has a second grinding wheel aligned with the first grinding wheel. When the second grinding wheel is in a grinding position, the second grinding wheel is situated between the first grinding wheel and a platform mounted on the base support to hold a workpiece. When the second grinding wheel moves away from the first grinding wheel, the first grinding wheel is movable to the platform for a grinding operation. The first and second grinding wheels have different levels of coarseness/fineness.


Find Patent Forward Citations

Loading…