Industrial fan

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Description

FIG. 1 is a front elevational view of an industrial fan showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a top, front perspective view thereof.

Referenced Cited
U.S. Patent Documents
D34883 July 1901 Keiper
D239939 May 1976 Whitbread
Other references
  • Grainger's Catalogue, Spring 1974, p. 536, High-Pressure Direct-Drive Blower.
Patent History
Patent number: D291487
Type: Grant
Filed: Jun 19, 1985
Date of Patent: Aug 18, 1987
Assignee: Etudes Techniques et Representations Industrielles ETRI (Neuilly sur Seine)
Inventor: Jacques Delmas (Quaincy/Senart)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Young & Thompson
Application Number: 6/746,581
Classifications
Current U.S. Class: D23/162