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. 16, 1982
Filed:
Aug. 04, 1980
Applicant:
Inventors:
Martin Weis, Ettlingen, DE;
Hermann Dumbs, Gernsbach, DE;
Assignee:
ARENCO-BMD Maschinenfabrik GmbH, Karlsruhe, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164401 ; 164269 ;
Abstract
A machine for the blast cleaning of castings has a drum with a top opening through which abrasive from overhead abrasive throwing wheels is directed onto castings in the drum. The drum is oscillated about its axis through an angle of about 120.degree. and has two floor parts with an angle somewhat less than this between them. Oscillation of the drum makes for tumbling of the casting resting on the floor. The wall of the drum, in addition to the floor parts, has inwardly sloping parts next to the opening. The wall is made up of bars wedge-joined to support rings, sound being absorbed by rubber strips between them and the rings.