Patent Publication Number: US-4651492-A

Title: Roof tile

Description:
FIELD OF THE INVENTION 
     The present invention is a continuation-in-part of U.S. patent application Ser. No. 754,608, filed on July 12, l985 now U.S. Pat. No. 4,606,164, and it is hereby incorporated by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Other Related Applications. 
     The present invention relates to roof tiles. 
     2. Description of the Related Art. 
     The problem of cracked roof tiles, specially, when roofers walk on them is often traced to the lack of support resulting from partially overlapping of adjacent roof tiles. The parent application solved that problem by providing a honeycomb frame that has substantially a wedge shape. The interlocking features in that tile, however, were not suitable for currently known production molds. 
     Applicant believes that the closest reference corresponds to U.S. Pat. No. 522,686 issued to John E. Donaldson in l984. However, it differs from the present invention because it did not achieve any material cost savings with its wedge-shape underside. Donaldson&#39;s tile is a solid piece and is, consequently, bulky and heavy. The small grooves C carved in on the extensions of the tile do not effectively route the water down if the rain is substantial. 
     Other patents describing the closest subject matter provide for a number of more or less complicated features that fail to solve the problem in an efficient and economical way. None of these patents suggest the novel features of the present invention. 
     SUMMARY OF THE INVENTION 
     It is one of the main objects of the present invention to provide a roof tile that is well rested on the roof sheathing and withstands the weight of persons walking over it. 
     It is another object of this invention to provide a tile that can be manufactured in high production molds with favorable yield. 
     It is yet another object of the present invention to provide such a device that is inexpensive to manufacture and maintain while retaining its effectiveness. 
     Further objects of the invention will be brought out in the following part of the specification, wherein detailed description is for the purpose of fully disclosing the invention without placing limitations thereon. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     With the above and other related objects in view, the invention consists in the details of construction and combination of parts as will be more fully understood from the following description, when read in conjunction with the accompanying drawings in which: 
     FIG. 1 represents a top view in perspective of the roof tile subject of the present application. 
     FIG. 2 shows an end view of the roof tile and also showing the bottom of the roof tile. 
     FIG. 3 illustrates several adjacent roof tiles as they would look when properly installed on a roof. 
     FIG. 4 is a representation of the gutter member used between horizontally abutting tiles. 
     FIG. 5 is a cross-section of several vertically abutting roof tiles, partially overlapping on their ends. 
     FIG. 6 illustrates the gutter /member installed at the joint of the abutting tiles. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring now to FIG. 1, where the present invention generally referred to with numeral 10, it can be seen that the roof tile has substantially a flat rectangular shape and it is basically composed of upper or top rectangular member 20 and wedge frame member 30 integrally built on the underside of member 20. Upper rectangular member 20 has front wall 22, right wall 24, left wall 26 and rear wall 28. Longitudinal grooves 21 and 23 extend close to left and right walls 24 and 26, as shown in FIG. 2, on the underside of upper rectangular member 20. As in the parent application, frame member 30 has a honeycomb appearance which is intended to keep the cost and weight of the tile low while providing the necessary strength, as seen in FIG. 2. The lower surface 35 of frame member 30 provides adequate resting area that comes in contact with roof sheathing 80, as seen in FIGS. 2 and 5. 
     In FIG. 3, sections of two rows of horizontally abutting roof tiles T are shown. It can be observed that a gutter member 50 is positioned below the interface openings 60 of the horizontally abutting tiles. The water that goes through openings 60 is collected by gutter member 50 and discharged over the vertically abutting tile in front. End 52 of gutter member 50 rests on the rear upper surface of the tile that is vertically abutting in front, as shown in FIG. 5. End 51 of gutter member 50 extends the longitudinal length of the tile to the front of frame member 30 of the vertically abutting tile behind. There is a clearance 85 between the underside of bottom member 54 of gutter member 50 of the frontmost tile T and roof sheathing 80 that is filled with plaster or cement. Therefore, end 51 extends rearwardly keeping the same position of walls 56 and 58 inside grooves 21 and 23, as seen in FIG. 6. 
     FIG. 4 shows gutter member 50 which is preferably made out of a light plastic material that is not susceptible to the elements. Walls 56 and 58 extend upwardly from bottom member 54 in gutter member 50. Walls 56 and 58 enter inside longitudinal grooves 21 or 23. 
     It is believed the foregoing description conveys the best understanding of the objects and advantages of the present invention. Different embodiments may be made of the inventive concept of this invention. It is to be understood that all matter disclosed herein is to be interpreted merely as illustrative, and not in a limiting sense, except as set forth in the following appended claims.