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:
May. 01, 2001
Filed:
Jan. 06, 1999
Applicant:
Inventor:
George Frederic Vander Voort, Wadsworth, IL (US);
Assignee:
Buehler, Ltd., Lake Bluff, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D 9/00 ;
U.S. Cl.
CPC ...
B24D 9/00 ;
Abstract
A magnetic disc system for grinding or polishing metallographic test specimens on a movable platen includes a barrier that is magnetically attached to a movable platen. A grinding or polishing surface attaches to the barrier. The barrier magnetically attaches to the platen and is also capable of blocking or greatly reducing the magnetic field magnetism from passing through to the grinding or polishing surface and restricting or preventing swarf adhesion resulting from the polishing or grinding operation that could harm the prepared surface.