Sample tube for a percussive hammer

- SDS Digger Tools Pty Ltd

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Description

FIG. 1 is a side view of a sample tube for percussive hammer made in accordance with our new design;

FIG. 2 is a top elevational view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a cross-sectional side view thereof; and,

FIG. 5 is a perspective view thereof.

Referenced Cited
U.S. Patent Documents
D239820 May 1976 Retrum
D257239 October 7, 1980 Johnson
1319325 October 1919 Dodds
2230808 February 1941 Mohr
2389208 November 1945 Orr
2721055 October 1955 Madson
3308897 March 1967 Becker
4321974 March 30, 1982 Klemm
Patent History
Patent number: D412447
Type: Grant
Filed: Jun 22, 1998
Date of Patent: Aug 3, 1999
Assignee: SDS Digger Tools Pty Ltd (Western Australia)
Inventors: John Urquhart Dewar (Canning Vale), Malcolm Bicknell McInnes (Canning Vale)
Primary Examiner: Nelson C. Holtje
Law Firm: Klauber & Jackson
Application Number: 0/89,745
Classifications
Current U.S. Class: Measuring, Regulating Or Indicating Instrument, Or Casing (D10/46)
International Classification: 1004;