Safety filter element

Description

FIG. 1 is a top plan view of a safety filter element embodying our new design;

FIG. 2 is a bottom plan view of the safety filter element depicted in FIG. 1;

FIG. 3 is a front side elevational view of the safety filter element depicted in FIG. 1;

FIG. 4 is a back side elevational view of the safety filter element depicted in FIG. 4;

FIG. 5 is a left side elevational view of the safety filter element depicted in FIG. 1; and,

FIG. 6 is a right side elevational view of the safety filter element depicted in FIG. 1.

Claims

The ornamental design for safety filter element, as shown and described.

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Inventors:	Ward; Dennis E. (Richfield, MN), Schrage; Kevin J. (Spring Valley, MN), Coulonvaux; Paul R. (Brussels, BE), Dewit; Johan G. (Hamme-Mille, BE), Ivarson; Jeffrey J. (San Rafael, CA)
Assignee:	Donaldson Company, Inc. (Minneapolis, MN)
Appl. No.:	D/091,239
Filed:	July 24, 1998

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Current U.S. Class:	D23/209
Current International Class:	2301
Field of Search:	;D23/207-209 ;210/499,497.01,460

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References Cited [Referenced By]

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U.S. Patent Documents

D401306	November 1998	Ward et al.
D404797	January 1999	Jameson
3469707	September 1969	Humbert, Jr. et al.
3698562	October 1972	Farrow et al.
4801383	January 1989	Haffmann et al.
5082476	January 1992	Kahlbaugh et al.
5336405	August 1994	Tang et al.
5443721	August 1995	Kelada et al.
5613992	March 1997	Engel
5728298	March 1998	Hamlin

Other References

Exhibit A, Photographs of a prior art safety filter element (2 pages, 4 photographs)..

Primary Examiner: Taylor; Robin V.
Attorney, Agent or Firm: Merchant & Gould P.C.