The present invention generally relates to paint application devices and more particularly to paint application devices which are adapted for applying paint to corner surfaces.
The use of paint applicators such as paint brushes, paint rollers, and paint pads for the application of paint to walls and the like is well known. Brushes allow for accurate paint application in that they provide a relatively small interface area with respect to the surface being painted and can be provided in a wide array of sizes. However, brushes are relatively slow due to their typical sizes and limited paint holding volume. Moreover, depending on the quality of paint and the diligence of the worker, brushes can often result in visible brush strokes and loose bristles in the dried paint.
Matted rollers are therefore often the tool of choice for fast paint application to relatively large surfaces such as walls and ceilings. The matted material forming the roller is sufficiently absorbent to hold a large volume of paint.
That volume can be further enhanced by tailoring the width and diameter of the roller to the given application. However, given such size and shape, accurate control of the paint application is difficult, and accurate application to corner surfaces is especially problematic.
Foam pads are therefore often the tool of choice given the demands of paint application and drawbacks of the above-referenced alternatives. Such applicators absorb a relatively high volume of paint, and can be dabbed onto intricate textures. Moreover, such pads often have a straight or angular edge enabling application of paint along a straight trim line or to a corner surface and the like.
Referring now to the drawings figures, a corner painting tool (also referred to as a corner painting device) constructed in accordance with the teachings of the disclosure is generally referred to by reference numeral 10.
As illustrated in
Head 12 provides a pad presenting surface 14, which includes a first front face 16 and a second front face 18. First front face 16 and second front face 18 are generally disposed at right angles to each other such that the faces 16,18 can engage corner surfaces. Faces 16,18 are generally defined by upper edges 20A, 20B, lower edges 22A, 22B, and side edges 24A, 24B. Head 12 also provides corner engaging points 26A, 26B.
As shown in
Referring now again to
The corner painting tools also generally include a handle 44. With reference to
In particular, head 12 is capable of rotating at least about 80 degrees with respect to handle 44.
Handle 44 further includes a retention knob 48, which provides a retention tab 49. Retention tab 49 is oriented generally perpendicular to retention knob 48, as illustrated in
Resilient element 50 is exemplified by a spring, but any conventionally known element capable of biasing the head 12 with respect to the handle 44 may be used in accordance with the invention. Springs having a spring constant between about 5 lbs/inch and about 35 pounds/inch may be used including but not limited to springs having a spring constant of about 20 pounds/inch.
Including a resilient element 50 such as a spring to bias head 12 with respect to handle 44 is advantageous for a number of reasons. Resilient element 50 provides steady positive pressure when the corner painting tool is engaged with a surface to be painted, regardless of the orientation of the handle 44 with respect to the head 12. That is, resilient element 50 provides steady positive pressure to the head 12 when the corner painting device 10 is engaged with the painting surface regardless of the angle of the handle 44 as the handle 44 is pivoted about bosses 38A, 38B.
Furthermore, resilient element 50 causes the pad to automatically return to a normal (or neutral) position with respect to the handle and allows controlled paint loading from a comfortable angle. Including a resilient element 50 also makes it easier to initially apply the tool 10 to the wall surface, as the head 12 would otherwise be free to pivot as it was transported from a paint loading container (such as a paint bucket or a paint tray) to a wall surface, thereby increasing the risk of unintentionally splattering or dripping of paint.
Handle 44 may also include grip portions 52A, 52B. Grip portions 52A, 52B are typically provided by an elastomeric material. Various thermoplastic elastomers, such as Santopreneg products (Advanced Elastomer Systems, L. P., Akron, Ohio), may be used to provide rubbery gripping surfaces on the exterior of handle 44. As shown in
As illustrated in
Pad 56 need not be a two component construction, i.e., pad 56 may comprise a single unitary material. Pad 56 also provides retaining elements 66A, 66B for engaging grooves 32A, 32B. Accordingly, retaining elements 66A and 66B may be received by grooves 32A and 32B, in order to effect the coupling of pad 56 to head 12 and retain paid 56 on pad presenting surface 14. Preferably, retaining elements 66A, 66B of pad 56 can engage grooves 32A, 32B by a snap-fit.
Pad 56 is generally defined by top edges 68A, 68B, side edges 70A, 70B, and bottom edges 72A, 72B. Pad 56 also provides a corner engaging edge 74, <BR> <BR> which is capable of engaging a corner surface, i.e., a surface defined by two walls (or similar surfaces) which are connected at right angles. Top edges 68A and 68B are generally linear. In general, each pad face 58,60 is generally rectangularly shaped.
Accordingly, top edges 68A and 68B are generally perpendicular or transverse to side edges 70A and 70B. Similarly, bottom edges 72A and 72B are generally perpendicular to side edges 70A and 70B.
Providing linear top edges 68A, 68B is advantageous because it allows corner painting tool 10 to paint a corner surface all the way up to the ceiling.
Additionally, providing linear top edges 68A, 68B to corner painting tool 10 allows the user to apply paint to either side of the corner along the edge of the ceiling.
Accordingly, corner painting tool 10 allows a user to both paint corners and to edge painting surfaces.
Head 12 and handle 44 may be manufactured through a variety of methods including, without limitation, injection molding, injection stretch blow molding, thermoforming, extrusion blow molding, injection blow molding, insert molding, co-injection molding, rotational molding, and other methods known in the art. Injection molding is the preferred method for manufacture.
A variety of thermoplastic resins may be used to manufacture the handle and head of the corner painting tools of the invention, including polyethylenes (e.g., high density polyethylene or linear low density polyethylene), polypropylenes (including structural foam comprising polypropylene), polyethylene terepthalates, polyvinyl chlorides, polycarbonates, etc. Polypropylenes are preferred materials for head 12 and handle 44 construction.
Although the foregoing text sets forth a detailed description of numerous different embodiments of a container for a paint roller assembly, it should be understood that the detailed description is to be construed as exemplary only and does not describe every possible embodiment of a container for a paint roller assembly. The present invention generally relates to paint applicators and more particularly to paint applicators including a paint application element which has a non-stick coating.
This application is a continuation that claims priority under 35 U.S.C. §120 of Patent Cooperation Treaty International Application No. PCT/US2003/025828 filed on Aug. 15, 2003 entitled “CORNER PAINTING TOOL”, the contents of which are herein incorporated by reference.
Number | Date | Country | |
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Parent | PCT/US03/25828 | Aug 2003 | US |
Child | 11354573 | Feb 2006 | US |