Coating implements with material supply – Material flows through porous tool – Hollow roller
Patent
1998-06-17
2000-03-14
Walczak, David J.
Coating implements with material supply
Material flows through porous tool
Hollow roller
401196, B05C 100
Patent
active
060363924
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to apparatus for applying fluids over surfaces. In particular, the present invention is a tool for storing and applying paint.
BACKGROUND OF THE INVENTION
Paint brush and paint roller are well known tool for applying paint over surfaces of building and walls. For painting large surfaces, paint roller and pan remain the instruments of choice for painting professionals and do-it-yourself individuals because they are inexpensive and apply paint consistently. However, the need to replenish the roller frequently attracts a number of new proposals and invention.
In general, the prior art teaches the combination of internal paint reservoirs and either a single or plurality of rollers. See, for example, U.S. Pat. Nos. 3,905,295; 4,167,349; and the list of patents disclosed in U.S. Pat. No. 4,555,195. These prior art painting tools having internal paint reservoirs and roller(s) have a common feature: paint from the reservoirs is applied over the external surface of the roller before the paint is introduced to the target surface.
The absence of these prior art paint tools from the market may be attributed to the fact that these alternatives are expensive, difficulty to maintain, and cumbersome to use. The higher expected cost is related to the large number of auxiliary rollers besides the main roller. Moreover, the complicated structure and movement of painting tool such as U.S. Pat. Nos. 3,905,295 and 4,555,195 suggest that it can be used at most once as coagulated paint clogs the intermediate rollers. Finally, the prior art paint reservoirs are disposed quite a distance off the longitudinal axis of the main rollers. As the reservoir when filled with paint is heavier, the center of gravity of the prior art paint rollers is away from the longitudinal axis of the roller. It follows that the user will find these prior art paint rollers less maneuverable than the regular paint roller.
OBJECT OF THE INVENTION
It is an object of the present invention to reduce the number of components in paint tool without compromising the convenience and maintenance of prior art paint roller.
It is a further object of the present invention to incorporate an internal reservoir to a paint roller for dispensing paint conveniently without the need to interrupt the user's task of painting.
It is yet another object of the present invention to reduce the distance between the internal reservoir with the longitudinal axis of the roller such that the user can enhance the maneuverability and feel of applying the roller on target surface.
SUMMARY OF THE INVENTION
The present invention is a paint roller incorporating an internal reservoir disposed within the interior space of the roller for receiving and dispensing paint. The interior of the roller communicates with the external surface of the roller over a plurality of slits in the roller. An applicator is laid over the external surface of the roller. Paint from the internal reservoir is dispensed evenly and automatically over the slits and the applicators to the target surface. Disposed within the internal reservoir of the roller is a wall for storing residue paint when the roller is rested in a vertical or quasi-vertical position. The center of gravity of the reservoir according to the embodiments shown is close to the longitudinal axis of the roller, such that the user can apply paint to the target surface with maximum maneuverability and real feel of a paint roller.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front, cross sectional, elevational view of the present invention together with a handle frame.
FIG. 2 is right side, perspective, and elevational view of the present invention as in FIG. 1.
FIG. 3 is a right side, cut-away, and elevational view of the present invention according to section A--A in FIG. 1.
FIG. 4 is a top, plan view of the roller in isolation after the applicator is removed from its external surface.
FIG. 5 is a cross-sectional view along cut C--C in FIG. 4.
FIG. 6 is a cross-sectional view taken along the
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Chung David D.
Ho Lawrence Y.D.
Lui Jacqueline C.T.
Walczak David J.
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