Mobile electrostatic air filter for use in welding projects

- AB Ph. Nederman & Co.
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Description

FIG. 1 is a right side elevational view of a mobile electrostatic air filter showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2144157 January 1939 Jorgenson
3355026 November 1967 Schut
3358839 December 1967 Simons
4976850 December 11, 1990 Kulitz
Patent History
Patent number: D329081
Type: Grant
Filed: Oct 15, 1990
Date of Patent: Sep 1, 1992
Assignee: AB Ph. Nederman & Co.
Inventors: Alf I. S. Jonasson (Hyllinge), Per N. Hedlund (Helsingborg)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Bacon & Thomas
Application Number: 7/597,751
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)