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:
Mar. 15, 1977
Filed:
Jul. 09, 1975
Applicant:
Inventor:
Peter Grund, Lutzelsachsen, DT;
Assignee:
Messer Griesheim GmbH, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51314 ; 51164 ;
Abstract
Fins or ridges are removed from molded workpieces by insertion into a rotating drum where they are subjected to the action of free hanging chains each mounted at one of its ends to the inner wall of the drum. Each chain has a length no greater than the inside diameter of the drum.