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Publication numberUSD402361 S
Publication typeGrant
Application numberUS 29/056,896
Publication dateDec 8, 1998
Filing dateJul 11, 1996
Publication number056896, 29056896, US D402361 S, US D402361S, US-S-D402361, USD402361 S, USD402361S
InventorsLarry R. Nepsund, Kathleen A. Abrahamson, Thomas A. Boeckermann, James K. Elfstrand
Original AssigneeDonaldson Company, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Panel filter construction
US D402361 S
Images(12)
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Claims(1)
  1. The ornamental design for a panel filter construction, as shown and described.
Description

FIG. 1 is a perspective view of a panel filter construction;

FIG. 2 is an enlarged right side view of FIG. 1, the left side being identical thereto;

FIG. 3 is an enlarged top plan view of FIG. 1;

FIG. 4 is an enlarged bottom plan view of FIG. 1;

FIG. 5 is an enlarged front side view of FIG. 1, the back side view being identical thereto;

FIG. 6 is a perspective view of a second embodiment of a panel filter construction; separate layers of filter media in the construction being indicated to contrast in appearance;

FIG. 7 is an enlarged right side view of FIG. 6, the left side being identical thereto;

FIG. 8 is an enlarged top plan view of FIG. 6;

FIG. 9 is an enlarged bottom plan view of FIG. 6;

FIG. 10 is an enlarged front side view of FIG. 6, the back side view being identical thereto;

FIG. 11 is a perspective view of another embodiment of a panel filter construction; an outermost layer of media being lined to indicate blue color, and a next inner layer being marked to indicate color contrast;

FIG. 12 is an enlarged right side view of FIG. 11, the left side being identical thereto;

FIG. 13 is an enlarged top plan view of FIG. 11;

FIG. 14 is an enlarged bottom plan view of FIG. 11; and,

FIG. 15 is an enlarged front side view of FIG. 11, the back side view being identical thereto.

Non-Patent Citations
Reference
1"Nonwovens in Filtration/Separation", paper presented by Clarke A. Rodman and Edward C. Homonoff, Allied Aftermarket Division, Allied Signal Corporation, Nonwoven Fabrics Forum, Jun. 21-23, 1988, Clemson University, Clemson, S.C.
21989 SAE Handbook, vol. 3, Engines, Fuels, Lubricants, Emissions & Noise, pp. 24.45-24.47.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6422395Jan 10, 2000Jul 23, 2002Nelson Industries Inc.Filter with preferential fluid affinity
US6610198Aug 22, 2001Aug 26, 2003Fleetguard, Inc.Liquid filter with change interval indicator
US6641742Apr 4, 2002Nov 4, 2003Fleetguard, Inc.Liquid filter with separate and calibrated vapor release
US6758980Nov 3, 2003Jul 6, 2004Fleetguard, Inc.Change interval plugging indicator provided in filter housing by gas trap and pressure responsive release mechanism which traps gas in upper section of inlet chamber until designated release pressure is reached, preventing premature indication
Classifications
U.S. ClassificationD23/365, D23/355