In-line air cleaner

- Donaldson Company, Inc.
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Description

FIG. 1 is a perspective view of an in-line air cleaner embodying our new design, an optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 2 is a rear-end elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 3 is a front-end elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 4 is a left elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 5 is a right elevational view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 6 is a bottom plan view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 7 is a top plan view of the in-line air cleaner depicted in FIG. 1, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 8 is a rear-end elevational view of a second embodiment of an in-line air cleaner, an optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 9 is a left elevational view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 10 is a right elevational view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented;

FIG. 11 is a bottom plan view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented; and,

FIG. 12 is a top plan view of the in-line air cleaner depicted in FIG. 8, the optional restriction indicator shown in broken lines forming no part of the design sought to be patented.

The front end elevational view of the in-line air cleaner depicted in FIG. 8 has an identical appearance to FIG. 3.

Claims

The ornamental design for in-line air cleaner, as shown and described.

Referenced Cited
U.S. Patent Documents
3025963 March 1962 Bauer
3740933 June 1973 Hollowell
4310419 January 12, 1982 Nara et al.
4720292 January 19, 1988 Engel et al.
4759783 July 26, 1988 Machado
4824564 April 25, 1989 Edwards et al.
4925561 May 15, 1990 Ishii et al.
5049326 September 17, 1991 Matsumoto et al.
5174895 December 29, 1992 Drori
5238474 August 24, 1993 Kahlbaugh et al.
5547480 August 20, 1996 Coulonvaux
5820646 October 13, 1998 Gillingham et al.
5895574 April 20, 1999 Friedmann et al.
Foreign Patent Documents
0 738 528 A2 October 1996 EP
WO 88/03431 May 1988 WO
Patent History
Patent number: D437401
Type: Grant
Filed: Feb 26, 1999
Date of Patent: Feb 6, 2001
Assignee: Donaldson Company, Inc. (Minneapolis, MN)
Inventors: Timothy M. Ramos (Burnsville, MN), Edward A. Steinbrueck (Eden Prairie, MN)
Primary Examiner: Lisa Lichtenstein
Attorney, Agent or Law Firm: Merchant & Gould P.C.
Application Number: 29/101,190
Classifications
Current U.S. Class: Air Cleaner (D23/364)
International Classification: 2304;