Ignition apparatus for blasting machine

- Nitro Nobel AB
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Description

FIG. 1 is a top view of an ignition apparatus for blasting machine showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear view thereof; and

FIG. 5 is a right side view thereof, the left side view being a mirror image.

Referenced Cited
U.S. Patent Documents
D270142 August 16, 1983 Schwartz
D274893 July 31, 1984 Fallon et al.
D278212 April 2, 1985 Schwartz
D293928 January 26, 1988 Lofgren
Patent History
Patent number: D297347
Type: Grant
Filed: Jul 17, 1985
Date of Patent: Aug 23, 1988
Assignee: Nitro Nobel AB (Gyttorp)
Inventors: Ake Gustafsson (Gyttorp), Sune Hallin (Nora)
Primary Examiner: Catherine E. Kemper
Law Firm: Frishauf, Holtz, Goodman et al.
Application Number: 6/756,064