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. 27, 1994
Filed:
May. 03, 1993
Applicant:
Inventor:
Rodger L Gamblin, Dayton, OH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241175 ;
Abstract
An improved planetary grinding apparatus is described that comprises a grinding tube holder that carries removable grinding tubes. The grinding tube holder undergoes planetary rotation and simultaneously contra-rotates at the same rate about its own axis so as to have no net rotation with respect to the base of the machine. The grinding tube holder is rigid and has no supporting or other structures around it in the space between its ends. As a result of this feature, and because of the lack of rotation of the grinding tube holder, each grinding tube may be interconnected with fixed external connectors without the use of rotating seals.