Background of the Invention
1. Field of the Invention
The present invention relates generally to a tray for paint and other coating fluids and specifically to a tray for use with a roller and, as needed, a brush, which tray is nestable with like trays, has excellent torsional stability, and includes an integral step ladder fitup, a frame catch and a brush rest, all of which features are achieved by a construction which requires less material than comparable trays and, therefore, can be provided to the consumer at lower cost.
2. Description of the Prior Art
Trays for use with paint rollers are well known, and are available in a variety of materials and separate styles. In one well-known form the tray is made of rigid metal material and contains two metal strips or legs which are riveted or welded onto the bottom side of the tray for clamping the tray onto a stepladder. These metal trays are not easily nor compactly stored nor efficiently packed for shipment, as the metal legs eliminate the possibility of nesting several such trays within each other for compact grouping.
Similarly, plastic trays have been made with comparable designs. Like the metal trays, the plastic trays generally have features which prevent easy nesting and storage of a multiple of such trays.
Plastic paint roller trays which are easily nested and stored have been manufactured without effective clamp-on legs. It appears that the trade-off for gaining the advantage of nestability is the loss of effective and functional clamp-on legs, which is a strong marketing feature of such trays.
Plastic trays also are typically less rigid than their counterpart metal trays, making it difficult to transport and carry the tray when it is loaded with paint or other coating fluid. Previously, rigidity in plastic trays was often accomplished by using a thicker tray wall design, which necessitates using more material and hence increases the cost of the tray.
Many such trays currently on the market do not include a convenient platform or location on which to rest a paintbrush, and no instances are known of this feature being available in a tray together with all the foregoing features. Because most individuals who use paint roller trays frequently use both a roller and a paint brush to accomplish their work, a platform for resting a conventional paint brush is a desirable use and marketing feature.
Summary of the Invention
The present invention is a tray for paints and other coating fluids which may be used with a roller and a brush and which has the features of a step ladder fitup and a brush rest. Further advantages of the tray include excellent rigidity and stability when filled with a paint or other coating fluid. In addition to all of the foregoing, the tray of this invention may be manufactured with a minimum of material, thus minimizing its overall cost.
Accordingly it is an object of this invention to provide a tray for paints and other coating fluids which may be nested for easy and compact packing of a multiple of such trays while, at the same time, having an effective ladder fitup feature and a brush rest.
Yet another object of this invention is to provide a low-cost tray for paints and other coating fluids which, in addition to being nestable and having the ladder fitup and brush rest features, is substantially rigid such that it may transported or carried without buckling when full of paint or other coating fluids.
Still another object of this invention is to provide a tray for paints and other coating fluids which may be manufactured at a low cost out of a minimum of inexpensive materials.
Other objects and advantages of the invention will become apparent from the following description of the invention.
Description of the Drawings
FIG. 1 is a top plan view of the preferred embodiment of the tray for paints and other coating fluids of the present invention;
FIG. 2 is a side view of the tray of the present invention;
FIG. 3 is a cross-sectional view, taken substantially along line 3--3 of FIG. 1, of two trays of the present invention shown stacked and nested one within the other;
FIG. 4 is an end view of the tray of the present invention, as seen from the end in which the brush rest section is located (i.e. the right end as viewed in FIG. 1);
FIG. 5 is the same end view, partially cut away and taken substantially along line 5--5 of FIG. 1, of the tray of the present invention;
FIG. 6 is a partial bottom view illustrating particularly the tray legs and clamp-on feature, and the strengthening ribs, of the present invention;
FIG. 7 is a section of the tray wall taken substantially along line 7--7 of FIG. 1; and
FIG. 8 is a section view of the brush rest taken substantially along line 8--8 of FIG. 5.
Description of the Preferred Embodiment
Like reference numerals will be used to describe like parts from Figure to Figure.
The tray of the present invention is shown generally at 10 in FIG. 1. The tray comprises a deep well section 11, an inclined rollout section 12, gutters 14 and 15 at the outer boundaries of the rollout section, a brush rest section indicated generally at 16, shown best in FIGS. 1, 2, 3 and 5, and substantially vertical walls 17 which surround the entire tray and which rise to a uniform height and terminate in wall lip 18, see FIG. 5. In the embodiment depicted in FIG. 1, the inclined rollout section 12 further comprises a series of slanted steps 19-24 which originate in the deep well section 11 and slope upward to the brush rest section 16. The bottom of the gutters 14 and 15 lie in a plane which is situated below the plane of the adjacent portion of the inclined rollout . As shown best in FIGS. 1, 3 and 5 the brush rest section 16 is shown as two slanted planes 25 and 26 which slope downward from the outer edges of the brush rest section toward the center 27. The two planes are also slightly rearwardly sloped, as clearly depicted in FIG. 4. The rearward slope allows a brush to be rested therein, without accidentally slipping into the sloped section 12 or the deep well 11.
The support structure of the tray consists of the tray legs 28, 29, the stepladder clamps 30 and 31, and the continuous bar 32, which bar is located in the same elevation as the stepladder clamps or fitups 30 and 31. The wall lip 18 surrounds the top of the entire tray structure, and facilitates the pouring of paints or coating fluids out of the tray at the corners of the deep well section 11.
Also shown in FIG. 1 are two roller frame and brush catches 33 and 34, which prevent a roller frame or brush handle from slipping into the deep well section 11 when the roller or paint brush is rested in the brush rest section 16.
The tray legs 28, 29, the stepladder clamps 30, 31 and the continuous bar structure 32 provide substantial rigidity to the tray.
It will be observed from FIG. 2 that the inclined rollout section 12 need not be of constant slope, but rather may vary in steepness from the deep well section 11 up through the brush rest section 16. FIG. 2 further illustrates the downwardly, slightly outwardly extending legs which outward extension provides the nestability of the tray. A slant of about 10.degree. from the vertical is ideal. Also apparent in FIG. 2 is the forward rib 55, which further enhances the rigidity of the tray.
FIG. 3 further depicts the nestability of the tray. The construction allows for near-perfect nesting of one tray in the other, thus minimizing the amount of floor and storage space required to store a multiple of the trays of the present invention. The preferred embodiment of the tray is constructed such that when nested or stacked in a bottom tray, the top tray rises only approximately 1.5 cm. above the bottom tray. In one embodiment, twelve of such trays, each of which held more than 2/3 of a quart, occupied a volume of only approximately 4600 sq. cm.
The brush rest section 16 of the tray is best illustrated in FIGS. 1, 4, 5 and 6. From these figures it will be noted that the brush rest includes two planes 25 and 26 which slope downwardly toward the center of the tray, shown best in FIG. 5, and slightly rearwardly (as shown in FIG. 1), shown best in FIGS. 1, 3 and 8. The inclined surfaces 25 and 26 stop short of meeting at the center, forming a central, generally flat bottom surface 27. The slight rearward inclination of side planes 25 and 26 helps preclude a paint brush which is placed in the brush rest from falling downwardly into the rollout section 12 or deep well 11.
A series of ribs 35, 36, and 37, 38, and 39, 40, and 41, 42, located on the underside of the brush rest section 16 contribute to the rigidity and nested stability of the tray. The ribs are placed to produce substantial rigidity with a minimum of material. Ribs 35 and 37 provide a compartment into which the roller frame/brush catch nub 33 is received, and ribs 36 and 38 provide a receptacle which receives nub 34. These ribs enhance the rigidity of the tray to the point where the tray, when filled with paint, may be picked up at the shallow end, where the maximum force lever is exerted on the tray, without buckling.
Another series of stiffening ribs 51, 52, and 53, 54, and 55, located beneath the wall lip 18, shown best in FIGS. 2, 3, 4, 5, and 6, also contribute to the rigidity and nested stability of the tray, and define the plane upon which an upper tray will rest when nested in a lower tray.
FIG. 7 illustrates particularly the relationship between the gutter 14 and a step in inclined slope 24.
FIG. 8 illustrates particularly clearly the relationship of one of the inclined surfaces of the brush rest to its adjacent structure.
The tray of the present invention is ideally constructed of a high-density, high-impact plastic, such as polyethylene or polypropylene. Any well-known process such as injection molding is acceptable for manufacturing the tray. The strong, light weight feature of the tray can be appreciated from the fact that a 2/3 quart capacity tray constructed of polypropylene substantially as above described will weigh only a little more than 0.57 of a pound.
The present invention has been described in connection with a preferred and exemplary embodiment thereof. As many variations and modifications of the present invention will be obvious to those skilled in the art, it is apparent that the scope of the invention should be determined, not by the specific disclosures herein but rather, by the appended claims, when construed herewith regard to the relevant prior art.