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Filter element having circular sleeve
D407808 Filter element having circular sleeve
Patent Drawings:Drawing: D407808-10    Drawing: D407808-11    Drawing: D407808-3    Drawing: D407808-4    Drawing: D407808-5    Drawing: D407808-6    Drawing: D407808-7    Drawing: D407808-8    Drawing: D407808-9    
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(9 images)

Inventor: Nepsund, et al.
Date Issued: April 6, 1999
Application: D/056,934
Filed: July 11, 1996
Inventors: Abrahamson; Kathleen A. (Prior Lake, MN)
Boeckermann; Thomas A. (Lakeville, MN)
Elfstrand; James K. (Mounds View, MN)
Nepsund; Larry R. (Savage, MN)
Assignee: Donaldson Company, Inc. (Minneapolis, MN)
Primary Examiner: Lichtenstein; Lisa
Assistant Examiner:
Attorney Or Agent: Merchant, Gould, Smith, Edell, Welter & Schmidt, P.A.
U.S. Class: D23/365
Field Of Search: D23/365; D2/865; D2/894; 2/171; 2/181; 2/DIG.11; 55/498
International Class:
U.S Patent Documents: 2598673; 2918138; 2966960; 3290870; 3298149; 3384241; 3386583; 3417870; 3488928; 3552553; 3672130; 3680659; 3802160; 3822531; 3878014; 3918945; 4012211; 4074985; 4086070; 4089783; 4101423; 4102785; 4104170; 4160684; 4211543; 4233042; 4243397; 4259096; 4314832; 4322230; 4402830; 4452619; 4594162; 4619674; 4629483; 4647373; 4676807; 4695300; 4720292; 4758460; 4759782; 4783271; 4878929; 4886599; 4976759; 5082476; 5122270; 5129923; 5171342; 5238474; 5252207; 5279731; 5290330; 5306321; 5364456; 5415676; 5423892; 5454858; 5468382
Foreign Patent Documents: 0 001 407; 0 083 789; 0 208 515; 0 212 082; 2 380 058; 35 13 062 A1; 630886; 900450; 1 460 925; 2 101 902; 2 152 399; 2 197 802; WO 94/0345; WO 89/07484; WO 92/06767
Other References:









Abstract:
Claim: The ornamental design for filter element having circular sleeve, as shown and described.
Description: FIG. 1 is a perspective view of a filter element having circular sleeve thereon;

FIG. 2 is a top plan view of FIG. 1, the bottom view being a mirror image;

FIG. 3 is a front side view of FIG. 1;

FIG. 4 is a back side view of FIG. 1;

FIG. 5 is a perspective view of a second embodiment of a filter element having circular sleeve thereon; different surfaces of the filter sleeve being indicated to contrast in appearance;

FIG. 6 is a top plan view of FIG. 5, the bottom plan view being a mirror image thereof; in FIG. 6 an outer surface of the filter sleeve being indicated to contrast in appearance with an inner surface of the filter sleeve;

FIG. 7 is a front side view of FIG. 5;

FIG. 8 is a back side view of FIG. 5;

FIG. 9 is a perspective view of a third embodiment of a filter element having a circular sleeve thereon, an outer surface of the sleeve being lined to indicate blue color;

FIG. 10 is a top plan view of FIG. 9 the bottom plan view being a mirror image thereof;

FIG. 11 is a front side view of FIG. 9; and,

FIG. 12 is a back side view of FIG. 9.

The broken lines in FIGS. 1-12 represent stitching.

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