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:
Apr. 03, 2012

Filed:

Jan. 26, 2009
Applicants:

Derrick L. Hamm, Sparta, NC (US);

John E. Smith, Independence, VA (US);

Willis D. Ward, Independence, VA (US);

Inventors:

Derrick L. Hamm, Sparta, NC (US);

John E. Smith, Independence, VA (US);

Willis D. Ward, Independence, VA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A surface grinding machine generally consisting of a drive means provided with an output shaft; a planetary disk mounted on the shaft; and at least two grinding head units mounted on the planetary disk, each including a housing mounted on the planetary disk, a shaft having a flange portion, journaled in the unit housing, resilient means interposed between the housing and the flange portion of the unit shaft and a disk provided with a grit surface disposed on an outer side of the flange portion of the unit shaft.


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