Explosion proof enclosure for electrical apparatus or similar article

- Endress + Hauser, Inc.
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Description

FIG. 1 is a front elevation view of the explosion proof enclosure for electrical apparatus;

FIG. 2 is a top plan view of the enclosure;

FIG. 3 is a side elevation view of the enclosure; and

FIG. 4 is a bottom view of the enclosure.

Referenced Cited
U.S. Patent Documents
D115709 July 1939 Olley
D156681 September 1947 Stone
3582535 June 1971 Appleton
3724706 April 1973 Slocum
3853291 December 1974 Burke
Patent History
Patent number: D272732
Type: Grant
Filed: May 11, 1981
Date of Patent: Feb 21, 1984
Assignee: Endress + Hauser, Inc. (Greenwood, IN)
Inventors: Brian E. Moore (Greenwood, IN), Richard D. Buis (Indianapolis, IN)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Lynn Wilder
Law Firm: Barnes & Thornburg
Application Number: 6/262,343
Classifications
Current U.S. Class: D13/13
International Classification: D1399;