Combined filter element and frame therefor Patent Grant Gillingham , et al. September 8, 1 [Donaldson Company, Inc.]

Combined filter element and frame therefor

Gillingham , et al. September 8, 1

Patent Grant D398046

U.S. patent number D398,046 [Application Number D/053,682] was granted by the patent office on 1998-09-08 for combined filter element and frame therefor. This patent grant is currently assigned to Donaldson Company, Inc.. Invention is credited to Gary R. Gillingham, Bernard A. Matthys, Daniel T. Risch, Joseph C. Tokar.

United States Patent	D398,046
Gillingham , et al.	September 8, 1998

Combined filter element and frame therefor

Claims

The ornamental design for a combined filter element and frame therefor, as shown and described.

Inventors:	Gillingham; Gary R. (Prior Lake, MN), Matthys; Bernard A. (Apple Valley, MN), Tokar; Joseph C. (Apple Valley, MN), Risch; Daniel T. (Burnsville, MN)
Assignee:	Donaldson Company, Inc. (Minneapolis, MN)
Family ID:	57396864
Appl. No.:	D/053,682
Filed:	April 26, 1996

Current U.S. Class:	D23/365
Current CPC Class:	B01D46/527 20130101
Current International Class:	2304
Field of Search:	;D23/365 ;55/498,508 ;210/483,497.01

References Cited [Referenced By]

U.S. Patent Documents


3807150	April 1974	Maracle
3878594	April 1975	Minor, Jr. et al.
3966646	June 1976	Noakes et al.
4289513	September 1981	Brownhill et al.
4322231	March 1982	Hilzendegen et al.
4410427	October 1983	Wydeven
4430223	February 1984	Miyakawa et al.
4439321	March 1984	Taki et al.
4589983	May 1986	Wydevan
5102436	April 1992	Grabowski
5304351	April 1994	Tanaka et al.

Primary Examiner: Lichtenstein; Lisa
Attorney, Agent or Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt

Description

FIG. 1 shows a perspective view of a first embodiment of a filter apparatus, according to the present invention;

FIG. 2 shows a top plan view thereof, a bottom plan view not being shown as it is a mirror image of the top plan view;

FIG. 3 shows a front elevational view thereof, a rear elevational view not being shown as it is a mirror image of the front elevational view;

FIG. 4 shows a right side elevational view thereof, a left side elevational view not being shown as it is a mirror image of the right side elevational view;

FIG. 5 shows a perspective view of a second embodiment of a filter apparatus, according to the principles of the present invention;

FIG. 6 shows a top plan view thereof, a bottom plan view not being shown as it is a mirror image of the top plan view;

FIG. 7 shows a front elevational view thereof, a rear elevational view not being shown as it is a mirror image of the front elevational view; and,

FIG. 8 shows a right side elevational view thereof, a left side elevational view not being shown as it is a mirror image of the right side elevational view.

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