Title: Blast cleaning machine

Abstract: A blast cleaning machine for blast cleaning parts comprising a main frame, a housing supported on the main frame, and a barrel assembly rotatably supported in the housing for oscillatory movements therein between loading, blasting and discharge positions. The barrel assembly has an annular side wall provided with relatively inclined sections that cooperate with relatively inclined surface sections at the bottom of the barrel to provide for a continuous tumbling and flowing of parts in the barrel across a stream of shot projected into the open end of the barrel by a conventional impeller assembly. This action of the parts assures a full cleaning of all of the parts in the barrel in a relatively short time.

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Inventors: Kuehn, Udo (Ann Arbor, MI, US)

Application Number: 739954
Filing Date: 1976-11-08
Publication_date: 1977-09-13
Assignee: Ervin Industries, Inc. (Ann Arbor, MI)
Primary Class(es): 451/85 134/159, 241/DIG10
Other Classes:
US Patent Ref:

1491663	Apr, 1924	Billings	51/13.
1934461	Nov, 1933	Hartley	51/164.
2116160	May, 1938	Rosenberger	51/13.
2424955	Jul, 1947	Potter	51/13.
3948003	Apr, 1976	Pletscher	51/164.

Other Refs: 543,048580,226

Dec, 1955	BE
Aug, 1946	UK

Primary Examiner: Smith, Gary L.
Assistant Examiner:
Attorney: Olsen and Stephenson