Pneumatic tool for cleaning, descaling or roughening metallic surfaces or the like

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Description

FIG. 1 is a side view of a pneumatic tool for cleaning, descaling or roughening metallic surfaces or the like showing our new design, the other side being a mirror image thereof;

FIG. 2 is a rear end view thereof, taken from the left of FIG. 1;

FIG. 3 is a front end view thereof, taken from the right of FIG. 1;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a view similar to FIG. 1 but showing a modified form of my new design, the other side being a mirror image thereof;

FIG. 7 is a rear end view thereof, taken from the left of FIG. 6;

FIG. 8 is a front end view thereof, taken from the right of FIG. 6;

FIG. 9 is a top view thereof; and

FIG. 10 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D168215 November 1952 Doeden
D258237 February 10, 1981 Anspach
D261097 October 6, 1981 Wallace
3150888 September 1964 Parker
3451490 June 1969 Troike
3571874 March 1971 Arx
3937055 February 10, 1976 Caruso et al.
4134193 January 16, 1979 Lenzin
Patent History
Patent number: D269247
Type: Grant
Filed: Oct 2, 1980
Date of Patent: Jun 7, 1983
Assignee: Maschinenfabrik, von Arx AG (Sissach)
Inventors: Fritz Lenzin (Arlesheim), Paul Dummermuth (Zunzgen)
Primary Examiner: Robert C. Spangler
Attorney: Howard H. Darbo
Application Number: 6/193,167
Classifications
Current U.S. Class: D 8/61
International Classification: D0804;