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.

Date of Patent:
Jul. 26, 2022

Filed:

Jun. 26, 2019
Applicant:

Bay Union Abrasive Technology Co., Ltd., New Taipei, TW;

Inventor:

Wen-Chang Chen, New Taipei, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B24D 18/00 (2006.01); B24D 99/00 (2010.01); B24D 3/02 (2006.01); B24D 3/00 (2006.01); B24D 11/00 (2006.01); B24D 5/02 (2006.01); B24D 5/10 (2006.01); B24D 5/16 (2006.01); B24D 7/18 (2006.01); C09K 3/14 (2006.01);
U.S. Cl.
CPC ...
B24D 99/00 (2013.01); B24D 3/001 (2013.01); B24D 5/16 (2013.01);
Abstract

A grinding wheel center hole protection pad is provided, which mainly include a positioning portion attached to the peripheral thereof and the guiding portions disposed at the center hole at the axial center thereof. The guiding portions serve as the isolation layer between the center hole of the grinding wheel and the peripheral plate guiding wall of a flange plate. Therefore, the grinding wheel can be closely attached to the flange plate during the assembling process to decrease eccentricity. Accordingly, it is not necessary to perform the cutting calibration process and balance adjustment by a cutting machine, which can reduce the waste of manpower and material resources.


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