Patent
   D320839
Priority
Oct 12 1988
Filed
Apr 11 1989
Issued
Oct 15 1991
Expiry
Oct 15 2005
Assg.orig
Entity
unknown
2
8
n/a
The ornamental design for a combined filter housing and filters for sewage, as shown and described.

FIG. 1 is a top, front perspective view of a combined filter housing and filters for sewage showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a cross-sectional view thereof, taken on line 3--3 of FIG. 1;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top, front perspective view of a second embodiment thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a cross sectional view thereof, taken on line 8--8 of FIG. 6;

FIG. 9 is a top plan view thereof; and

FIG. 10 is a rear elevational view thereof.

The texture on the filters is shown partially for ease of illustration.

Froud, David P.

Patent Priority Assignee Title
10625185, Mar 01 2019 Precision Dewatering, LLC Portable filtration apparatus, systems and methods
D954898, Feb 28 2020 New Pig Corporation Oil absorbent skimmer
Patent Priority Assignee Title
1165741,
1585418,
3204391,
3301401,
3317047,
4419232, Oct 01 1981 SKANSKA PREFAB AB Filtering and collecting device for water drains
4448686, Nov 04 1982 Oil Process Systems, Inc. Filter bag with integral agitator
4871454, Jun 27 1988 INTERA, INC A CORP OF TEXAS Portable dumpster slurry separating system
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 11 1989Copa Products Limited(assignment on the face of the patent)
May 09 1989FROUD, DAVID P PIPELINE EQUIPMENT LTD , A CORP OF ENGLANDASSIGNMENT OF ASSIGNORS INTEREST 0051940581 pdf
Feb 08 1991PIPELINE EQUIPMENT LIMITEDCopa Products LimitedCHANGE OF NAME SEE DOCUMENT FOR DETAILS EFFECTIVE ON 06 02 19800057170452 pdf
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