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US 2006/0065591 A1Published application
Drop-in filter for spray gun reservoir
Assignee3M Innovative Properties Company
InventorStephen Joseph
Life of this patent
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Assignee3M Innovative Properties Company
InventorStephen Joseph
Estimating the term…
A liquid supply assembly for use with a spray gun (FIG. 1) comprises a reservoir 9 provided with a drop-in filter 10 for removing solid particles from liquid added to the reservoir 9. The reservoir 9 has a lid 12 with an outlet opening 12E connectable via a spout 16 to the spray gun and a separate inlet opening 12D in which a support collar 27 of the filter 10 is located. The filter 10 comprises a tubular mesh body 10A having an open end and a closed end. The open end is connected to the support collar 27 and the mesh body 10A extends away from the inlet opening 12D within the reservoir 9. The mesh body 10A is sized to pass through the filler opening 12D and has a high flow capacity to permit rapid filling of the reservoir 9. The filter 10 may be left in place when the reservoir 9 is connected to the spray gun and the reservoir 9 may be discarded together with the filter 10 after use.
A filter (10;110) for a liquid supply assembly including a reservoir (9;109) for connection to spraying apparatus such as a spray gun (1), the filter (10;110) comprising an elongate tubular body (10A;110A) closed at one end and open at the other end, the open end being provided with a support collar (27;127) that fits in a filler opening (120) of a reservoir (9;109) and locates said open end so that the filter body (10A;110A) extends away from the opening (120) within the reservoir (9;109) when liquid is added to the reservoir (9;109) through the filler opening (120) characterised in that the tubular body (10A:110A) of the filter (10;110) is sufficiently rigid to maintain an elongate tubular shape and has a surface area and volume when within the reservoir (9;109) to permit, in use, filling of the reservoir (9;109) with liquid that is filtered on being added to the reservoir (9;109) to produce a supply of filtered liquid within the reservoir (9;109) for supply to the spray gun (1) when the reservoir (9;109) is connected to the spray gun (1).
A liquid supply assembly for use with spraying apparatus such as a spray gun, the liquid supply assembly comprising a reservoir (9;109) for containing a liquid, the reservoir (9;109) being connectable in use to a spray gun (1) for supply of the liquid to an inlet of the spray gun (1) and having a filler opening (120) for adding liquid to the reservoir (9;109), and a filter (10;110) for filtering liquid added to the reservoir (9;109) through the finer opening (120), the filter (10,110) comprising an elongate tubular body (10A;110A) closed at one end and open at the other end, the open end being provided with a support collar (27;127) that fits in the filler opening (120) so that the filter body (10A;10A) extends away from the opening (120) within the reservoir (9;109) when liquid is added to the reservoir (9;109) through the filler opening (120) to filter liquid added to the reservoir (9;109) characterized in that the tubular body (10A;110A) of the filter (10;110) is sufficiently rigid to maintain an elongate tubular shape and has a surface area and volume within the reservoir (9:109) to permit filing of the reservoir (9;109) with liquid that is filtered on being added to the reservoir (9;109) to produce a supply of filtered liquid within the reservoir (9;109) for supply to the spray gun (1) when the reservoir (9;109) is connected to the spray gun (1).
Dependencies are inferred from the claim text.