Filter element

- Donaldson Company, Inc.
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Description

FIG. 1 is a top plan view of a first embodiment of a filter element, according to the present invention;

FIG. 2 is a side elevational view of the filter element of FIG. 1; all other side elevational views being identical thereto;

FIG. 3 is a bottom plan view of the filter element of FIG. 1;

FIG. 4 is a top plan view of a second embodiment of a filter element, according to the present invention;

FIG. 5 is a side elevational view of the filter element of FIG. 4; all other side elevational views being identical thereto; and,

FIG. 6 is a bottom plan view of the filter element of FIG. 4.

Referenced Cited
U.S. Patent Documents
3469707 September 1969 Humbert et al.
4801383 January 31, 1989 Hoffman et al.
5443721 August 22, 1995 Kelada
Patent History
Patent number: D401306
Type: Grant
Filed: Sep 12, 1997
Date of Patent: Nov 17, 1998
Assignee: Donaldson Company, Inc. (Minneapolis, MN)
Inventors: Dennis E. Ward (Richfield, MN), Kevin J. Schrage (Spring Valley, MN), Paul R. Coulonvaux (Brussels), Johan G. Dewit (Hamme-Mille), Jeffrey J. Ivarson (San Rafael, CA)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Robin V. Taylor
Law Firm: Merchant, Gould, Smith, Edell, Welter & Schmidt, P.A.
Application Number: 0/76,524
Classifications
Current U.S. Class: Filter Or Strainer (2) (D23/209)
International Classification: 2301;