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a molded plastic and ramp technology, applied in the direction of amusements, skiing, construction, etc., can solve the problems of insufficient side and rear reinforcements of freeberg, insufficient side reinforcements, and insufficient side reinforcements
Inactive Publication Date: 2003-11-25
MAPP MICHAEL
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4. A support structure is provided for the present invention including laterally extending supports that extend rearward of the rear wall and laterally of the side walls. The undersides of these supports may be coated with a ground gripping material such as, for example, a roughened rubber material. The forward edge of the ramp surface extends forwardly of the forward extent of the lateral supports extending laterally from the side walls. In this way, the forward lip of the ramp surface provi...
Problems solved by technology
Furthermore, Freeberg lacks the side and rear reinforcements disclosed herein.
Furthermore, the ramp surface extends almost vertically an...
Method used
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The present invention is generally designated by the reference numeral 10 and is seen to include a smooth radiused ramp surface 11, side walls 13 and 15, and a rear wall 17. The ramp surface 11 includes a forward edge 19 that extends down to the bottom-most extent of the device 10 so that when the device 10 is placed on a flat ground surface, the edge 19 is substantially flush with the ground surface so that users have a smooth transition from the ground surface to the ramp surface 11 especially where small-wheeled vehicles such as skateboards and inline skates are used. The ramp surface preferably extends in a substantially uniform width from the forward edge 19 to the rear edge 12.
As seen in the figures, each of the side walls 13, 15 and the rear wall 17 are integrally reinforced. Thus, the side wall 13 includes depressions 21, 23 and 25 that comprise reinforcing ribs strengthening the side wall 13. These depressions are best seen in FIGS. 1 and 3. With reference to FIG. 5, these ...
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Abstract
A molded plastic ramp is made in a one-step molding process. The ramp includes reinforced side and rear walls and a smooth radiused ramp surface. The ramp includes laterally extending side and rear supports that engage a ground surface and the forward portion of the ramp surface extends forward of the forward extent of the side supports.
Description
BACKGROUND OF THE INVENTIONThe present invention relates to a molded plastic ramp. In the prior art, ramps are known, however. Applicant is unaware of any ramp structure including all of the features and aspects of the present invention.The following prior art is known to Applicant: U.S. Pat. No. 3,023,343 to Freeberg U.S. Pat. No. 3,663,015 to Bynder et al. U.S. Pat. No. 4,129,916 to Schlesinger et al. U.S. Pat. No. 4,285,514 to Romero U.S. Pat. No. 5,033,146 to Fogarty et al. U.S. Pat. No. 5,267,367 to Wegmann, Jr. U.S. Pat. No. 5,483,715 to Fogarty et al. U.S. Pat. No. 5,524,310 to Farnen U.S. Design Pat. No. 246,638 to Hegedus U.S. Design Pat. No. 257,874 to Sheehan et al. U.S. Design Pat. No. 346,256 to Thomas, III et al. U.S. Design Pat. No. 353,930 to Johnson.In Freeberg, the ramp surface is convex as compared to the concave radiused ramp surface of Applicant's invention. Furthermore, Freeberg lacks the side and rear reinforcements disclosed herein.Bynder et al. teach a bike ...
Claims
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Application Information
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