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Description  |
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FIELD OF THE INVENTION
The invention relates to paint brush cleaning devices.
BACKGROUND OF THE INVENTION
The problem of cleaning paint brushes is well-known, but the prior art has
not been able to provide a simple, closable brush holder and cleaner in
which the brush may readily be cleaned in the container and supported for
storage in the closed container with the bristles covered by fluid but
away from the sediment.
In U.S. Pat. No. 4,436,217, apparatus is provided for supporting a paint
brush either inside or outside a paint container, but without any
provision for cleaning the brush. The brush holder of U.S. Pat. No.
4,116,332 is designed for holding the brush immersed in a paint container
in order to obviate the need for cleaning it between uses. There is no
provision for brush cleaning. Buslik, U.S. Pat. No. 3,955,670, provides a
brush-holding lid for a container of cleaning solvent in which the brush
is taped to an opening in the lid. U.S. Pat. No. 3,918,582 provides a
cylindrical container for paint brush cleaning fluid, adapted for cleaning
a paint roller cover or paint brushes, in which the paint brush or roller
cover is suspended from a rod. U.S. Pat. No. 3,393,412 provides a series
of barbed needle-like members extending from the base of a container, for
expediting the removal of dried paint from paint brushes.
McGrath, U.S. Pat. No. 3,252,613, shows a painter's kit in which removal of
excess paint from the brush and its return to the can is facilitated. U.S.
Pat. No. 2,908,026 shows a method of resting a brush on an inclined wall,
dipped into cleaning solvent. The container is not closed, thereby
allowing noxious vapors from the solvent to escape to the atmosphere. U.S.
Pat. No. 2,782,909 shows a paint brush storage device in which the brush
is supported while immersed in solvent, but no means for cleaning the
bristles of the brush is shown. Similarly Switzer, U.S. Pat. No.
2,776,050, shows a brush suspended in cleaning fluid without any means for
cleaning the bristles. Olsen, U.S. Pat. No. 1,851,521, shows a brush held
by three piercing elements which pass through the handle of the brush.
None of the patents described above discloses a brush holder in which the
bristles may be cleaned by a comb which then supports the brush in the
cleaning solvent, above the level of sediment in the bottom of the
container.
SUMMARY OF THE INVENTION
A cleaner for a paint brush and a storage holder for a cleaned paint brush
is described in which the cleaned brush is suspended above the level of
the bottom of the container (where the sediment collects). The surface on
which the brush is supported is inclined, both to allow economy in the
amount of solvent needed, and to provide a "toe" portion in the container
in which the sediment collects when the supernatant solvent fluid is
decanted. The brush may be drawn through the tines of a comb, the tines
being positioned perpendicular to the inclined wall, and may rest on the
comb with the bristles immersed in the cleaning fluid, away from the
sediment.
It is an object of the invention to provide a low-cost, efficient, combined
brush cleaner and storage container.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view of a brush holder and lid of the
invention.
FIG. 2 is a vertical cross-sectional view of a closed brush holder of the
invention.
FIG. 3 is cross-section taken on line 3--3 of FIG. 2.
FIG. 4 is a cross-section taken on line 4--4 of FIG. 3.
FIG. 5 is a perspective view of a comb used in a brush holder of the
invention.
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIGS. 1-5, in which like numerals represent like parts, FIG. 1
shows a brush holder 2 of the invention. Lid 4 fixes tightly on container
8 and engages gasket 10 which extends around the perimeter of neck 6 of
container 8. Gasket 10 is a large diameter O-ring made of compressible
material such as rubber or plastic. Protrusions 12 on lid 4 correspond to,
and engage with, protrusions 14 on neck 6 of container 8. Tabs may also be
provided on the lid to facilitate its removal. Handle 18 on container 8
allows easy transporting of the container, and handle 20 on lid 4 enables
the lid to be more readily put on and taken off. Container 8 is configured
with inclined wall 22 connecting top portion 24 and bottom portion 26 of
the container.
Referring to FIG. 2, which shows brush holder 2 in cross-section, lid 4 is
engaged on container 8, the lid fitting closely over gasket 10 to prevent
solvent evaporation. Gasket 10 is preferably a large diameter, flexible
O-ring. One or more tabs on the lid may be provided to facilitate removal
of the lid. Brush 28 (shown in phantom) is engaged on support 30. Brush 28
rests with base 31 of handle 32 resting on comb 34, a plurality of tines
36 extending between bristles 38. Brush support 30, shown in detail in
FIGS. 3-5, is supported by container 8 parallel to inclined wall 22, and
brush 28 rests on comb 34 of support 30 parallel to inclined wall 22.
While the support may be positioned to hold the brush at an angle other
than parallel to the inclined wall, the parallel position is preferred.
Support 30 may be engaged with molding 33, which is illustrated as an
elongated inclined protrusion into the side of container 8, or support 30
may be free standing on the bottom of the container. When support 30
stands on, or extends to, the bottom of the container, it must be placed
so that the bristles of a supported brush rest above collected sediment.
The support means may be configured to include an aperture 41 for allowing
fluid to flow through the bristles, as shown in FIG. 5, the brush being
supported so that the bristles overlie aperture 41, as shown in FIG. 3.
FIG. 5 shows support 30 having tines 36 of comb 34 extending
perpendicularly from back 40 of support 30. Opening 41 enables free flow
of fluid 42 in the container when the support is engaged in the container,
as shown in FIG. 2, with the tines extending in a direction perpendicular
to the plane of the inclined wall.
In use, container 8 is filled with fluid, preferably brush-cleaning solvent
fluid 42, to an appropriate level, optimally above the level of the comb,
completely covering the bristles. Brush 28, which has been used for
painting, is immersed in solvent fluid 42, and bristles 38 are drawn
through the solvent covered tines 36, the tines frictionally engaging the
bristles to loosen the paint, enabling the paint particles to be carried
away by the solvent fluid. Tines 36 have V-shaped grooves 44 at the base
thereof, which facilitate removal of paint from the bristles. The bristles
are drawn through the cleaning comb while immersed in solvent fluid
enabling clean, efficient, removal of paint from the brush. Paint brushes
may be stored in the brush holder of the invention, resting on the comb,
the bristles being covered with cleaning solvent, but suspended above the
solid paint particles collected on the bottom of the container. The
well-fitting lid prevents evaporation of solvent fluid from the container
allowing the cleaned brush to remain soft, flexible, and ready for use.
Support 30 further includes edge 46 extending across the support, for
scraping excess solvent fluid from the brush before removing the brush
from the container.
While support 30 is conveniently made as a separate part inserted within
the container, it is equally within the scope of the invention that the
features of the support, such as tines 36 and/or scraping edge 46 may be
molded as part of container 8 so that a separate support unit is not
needed.
Comb 34 optimally extends across the width of container 8, but may be
narrower if desired. The width may be such as to accept two brushes 28,
29, side-by-side, or one brush of any size which fits within the width of
container 8. When brushes are cleaned in the fluid, paint particles
removed by the solvent fluid will gravitate to the bottom of the container
and collect as sediment 48.
At appropriate intervals, solvent fluid 42, from which the solid paint
particles have settled out, may be decanted from the container for reuse,
leaving paint sediment 48 in "toe" 26, at the bottom of container 8. The
angular configuration of the walls forming the lower part 26 of container
8 prevents sediment 48 from contaminating fluid being decanted. Should any
particles of sediment 48 be present in fluid being decanted, such
particles are likely to be retained by V-shaped grooves 44 and comb 34 as
the fluid is poured therethrough.
In container 8, shown in FIGS. 1-2, the length of the perimeter of the wall
of container 8 parallel to base 9 at a distance intermediate between base
9 and the upper edge of neck 6 is less than the length of the perimeter of
base 9. Thus a "toe" portion is formed adjacent base 9, and at least a
section of the wall above toe 26 may be an inclined wall, shown in FIGS.
1-2 as inclined wall 22.
Inclined wall 22 is preferably molded at an angle of 45.degree.-60.degree.
with respect to base 9 of the container, which, in addition to allowing
easy access to the brushes, enables the brush holders to be nested
together for compact storage and shipping. The inclined wall also reduces
the amount of solvent fluid needed, compared with a container of constant
cross-section, and the container with fluid has a low center of gravity
enabling stability and safety in use.
The container is lightweight, simple to use, inexpensive to manufacture,
and not easily tipped over (due to its low center of gravity). The
container and lid may be blow-molded from plastic and the support may also
be of plastic, and may be made by extrusion molding if molded separately
from the container. Appropriate methods are known to those skilled in the
art, and other materials, for example, metal, may be used for the
container and/or support. Due to the low cost of manufacture, the brush
holder may be disposed of after a limited period of use, if desired.
The brush holder has been described for use for cleaning paint brushes. It
may equally well be used for containing paint, optimally being filled so
that the paint does not completely cover the bristles when the brush rests
on the comb. The holder, containing paint and a brush supported on the
comb, may be closed with the tightly-fitting lid, and left for several
hours at least, without the brush or paint becoming hard and unusable.
While the invention has been described above with respect to certain
embodiments thereof, it will be appreciated that various changes and
modifications may be made without departing from the spirit and scope of
the invention.
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