Abstract
A substantially rectangular and open bottom shield configured to be fitted around an in-ground plant at ground level as enabled by an elongated slit and central aperture. A peripheral wall perpendicular to an opaque top panel extends downward around at least 75% of the perimeter of the top panel. The top panel is inclined toward the central aperture through which water and fertilizer can flow toward the plant root system.
Claims
1. A substantially impervious weed-preventing and water-funneling plant shield comprising; a) a generally rectangular open-bottom structure having i.) a substantially concave opaque top panel having a predetermined width, length and thickness, said concave top panel sloped toward a central aperture; ii.) at least three elongated integral peripheral wall sections substantially perpendicular to said top panel and extending in direction of concavity and providing a predetermined height; and b) an elongated slit in said top panel extending from said central aperture to and through an edge of said top panel and configured so as to allow portions of said top panel adjacent said elongated slit to be flexed for fitting around a plant stem at said central aperture.
2. The plant shield of claim 1, wherein said predetermined width and length are each in a range of 30 to 60 centimeters (12 to 24 inches).
3. The plant shield of claim 1, wherein said predetermined thickness is in the range of 2 to 8 millimeters.
4. The plant shield of claim 1, wherein said predetermined height is in the range of 1 to 5 centimeters.
5. The plant shield of claim 1, wherein said at least three integral peripheral wall sections number four.
6. The plant shield of claim 1, wherein said opaque top panel is one of black, dark green, and brown.
7. A weed-preventing and water-directing plant shield comprising; two generally rectangular open-bottom structures each having i.) a sloped top panel having a predetermined width, length and thickness, said sloped top panel inclined downward from three of four edges; ii.) three elongated integral peripheral wall sections substantially perpendicular to said top panel and providing a predetermined height; and iii) at least one indentation in one of said four edges.
8. The plant shield of claim 7, wherein said predetermined height is in the range of 1 to 5 centimeters.
9. A weed-preventing and water-funneling plant shield comprising; a) a generally rectangular hollow bottom structure having i.) a concave opaque top panel having a predetermined width, length and thickness, said concave top panel sloped at less than 10 percent toward a central aperture; ii.) an elongated integral peripheral wall portion substantially perpendicular to said top panel and extending in direction of concavity and providing a predetermined height; and b) an elongated slit in said top panel extending from said central aperture to and through an edge of said top panel and configured so as to allow portions of said top panel adjacent said elongated slit to be flexed vertically for fitting around a plant stem at said central aperture.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 provides a perspective view of a preferred embodiment of the present invention.
[0014] FIG. 2 is a sectional view along the plane of cut line II-II in FIG. 1.
[0015] FIG. 3 is an alternate sectional view along the plane of cut line III-III in FIG. 1.
[0016] FIG. 4 illustrates the preferred embodiment in a perspective view in use around a plant in a container.
[0017] FIG. 5 provides a perspective view of a two-piece alternative embodiment of the invention.
DETAILED DESCRIPTION OF A PRESENTLY PREFERRED AND VARIOUS ALTERNATIVE EMBODIMENTS OF THE INVENTION
[0018] Prior to proceeding to the more detailed description of the present invention it should be noted that, for the sake of clarity and understanding, identical components which have identical functions have been identified with identical reference numerals throughout the several views illustrated in the drawing figures.
[0019] Referring initially to FIG. 1, this provides a perspective view of a preferred embodiment of a plant shield apparatus generally indicated by 10. A low-profile generally planar opaque top panel 12 has at least three elongated peripheral walls 14 extending downward, and which are substantially perpendicular to the top panel 12 and surround at least 75% of the top panel. The top panel 12 must be opaque to keep out light and inhibit weed growth underneath, and solid black, dark green, and brown are preferred colors. The rectangular top panel 12 is substantially concave in that it generally slopes slightly toward the center such that nearly all rain water landing on it will be directed toward the plant stem and adjacent roots. Sloping slightly and generally concave is characterized by that which will not allow water to pool on the top surface as viewed from above when in position for use, yet the average slope is less than 10%. A generally central aperture 18 and slit 16 form a keyhole-like opening configured to slip the apparatus 10 around an in-ground plant (not shown) by flexing the top panel sections adjacent the slit in opposite vertical directions. The aperture 18 is typically about 5 cm (2 inches) diameter and the slit 16 just a cut through. The slit 16 cuts through one side edge 21, which may or may not be tapered. Typically, the top panel is square and in the range of 30 to 60 cm (12 to 24 inches) per side. It is also substantially impervious, meaning that over 90 percent of the top area would not allow liquid to pass directly through. This feature is significant in that it minimizes water evaporation and also impedes weed growth and funnels water toward the center.
[0020] FIG. 2 is a sectional view along the plane of cut line II-II in FIG. 1. The top panel 12 generally slopes inwardly away from the outer wall edges 14. The thickness of the top panel 12 and peripheral walls 14 will typically be between 2 and 6 mm. This thickness is for reasons of cost, being bendable, and also such that the wall edge 14 can be forced slightly into the ground to help hold it in place. The underside of panel 12 will generally be elevated enough to avoid ground contact and serve as a condensation surface for water that may evaporate during the heat of the day.
[0021] FIG. 3 is an alternate sectional view along the plane of cut line III-III in FIG. 1, which passes through the aperture 18 and slot 16. The top panel width and length dimensions 55 are typically in the range of 30 to 60 centimeters (12 to 24 inches). The elongated peripheral wall sections 14 serve to engage the soil to inhibit sliding and yet create a hollow underside with an air space under the opaque top panel to keep the soil warmer around the plant. The effect of the present invention is to keep the soil underneath about 4 to 7 degrees Celsius warmer at a depth of about 6 inches (15 cm).
[0022] FIG. 4 Illustrates, in a perspective view, use of the single-piece preferred embodiment 10 on top of a potted-plant container 60 for acting as a low-profile funnel with the sloped top panel 12 configured to collect and direct more rainwater or sprinkler water than would otherwise be taken in. For instance, a 12-inch round top on a typical pail offers only 114 square inches of area for rain to land on, while a 20-inch square shield offers 400 square inches, more than triple the water-catching area. The slit 16 allows the shield 10 to fit around an existing plant 52 and the edge wall 14 protrudes downward outside the top perimeter of the plant container 60.
[0023] FIG. 5 provides a perspective view of a two-piece alternative embodiment of the invention generally shown as 10. The slit 15 has been extended entirely across the top panel 12 thus splitting it into two identical halves with semicircle indentations 22 and 24 in lieu of a central aperture. The two halves can then be placed individually adjacent a row of plants or a single one with the two edges of the slit 16 nearly abutting and covering an area on both sides to inhibit weed growth and direct water toward the plant roots. Given how easy it is to extend the slit by cutting, this is deemed to be a minor variant within the scope of the preferred embodiment.
[0024] While a presently preferred and an alternative embodiments of the present invention have been described in sufficient detail above, and in the attached claims, to enable a person skilled in the relevant art to make and use the same, it should be obvious that various other adaptations and modifications can be envisioned by those persons skilled in such art without departing from the spirit of the invention.
