Hammer piston for valveless pneumatic impact device

- Atlas Copco Aktiebolag
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Description

FIG. 1 is a perspective front view of a hammer piston for valveless pneumatic impact device; and

FIG. 2 is a rear perspective view thereof.

Referenced Cited
U.S. Patent Documents
2694383 November 1954 Larcen
Patent History
Patent number: D242871
Type: Grant
Filed: Jun 19, 1975
Date of Patent: Dec 28, 1976
Assignee: Atlas Copco Aktiebolag (Nacka)
Inventor: Karl August Valdemar Magnusson (Saltsjo-Boo)
Primary Examiner: Alan P. Douglas
Attorney: Robert D. Flynn
Application Number: 5/588,584
Classifications
Current U.S. Class: Miscellaneous (D15/199)
International Classification: D1599;