A rooftop drainage device is provided for use in protecting rooftop drainpipes from clogging. An exemplary embodiment of the drainage device includes a filter comprising at least three sides, wherein at least one of the sides includes a plurality of apertures for allowing liquid to pass-through the
A rooftop drainage device is provided for use in protecting rooftop drainpipes from clogging. An exemplary embodiment of the drainage device includes a filter comprising at least three sides, wherein at least one of the sides includes a plurality of apertures for allowing liquid to pass-through the at least one side into the drainpipe, while filtering debris; and an object receptacle mounted to a top of the filter for removably retaining an object, wherein a weight of the object holds the rooftop drainage device on the rooftop and over the drainpipe without need for mechanical fasteners.
대표청구항▼
We claim: 1. In a rooftop drainage system, the improvement comprising a rooftop drainage device for removably covering a rooftop drainpipe, the rooftop drainage device comprising: a filter comprising at least three sides, at least one of the sides includes a plurality of apertures for allowing liqu
We claim: 1. In a rooftop drainage system, the improvement comprising a rooftop drainage device for removably covering a rooftop drainpipe, the rooftop drainage device comprising: a filter comprising at least three sides, at least one of the sides includes a plurality of apertures for allowing liquid to pass-through the at least one side into the drainpipe, while filtering debris; and an object receptacle mounted to a top of the filter and removably retaining an object, wherein a weight of the object is sufficient, such that it holds the rooftop drainage device on the rooftop and over the drainpipe without use of mechanical fasteners. 2. The rooftop drainage device of claim 1 wherein the rooftop drainage device is made of nonmetal material. 3. The rooftop drainage device of claim 2 wherein the nonmetal material comprises at least one of fiberglass, ceramics, and plastic. 4. The rooftop drainage device of claim 3 wherein the rooftop drainage device is constructed from separate pieces of the nonmetal material. 5. The rooftop drainage device of claim 1 wherein the filter further includes a plurality of fins on at least one of the sides that protrude from a surface of the filter for spacing debris away from the apertures. 6. The rooftop drainage device of claim 1 wherein the sides are any combination of being flat, concave, and convex in shape. 7. The rooftop drainage device of claim 6 wherein each of the sides lies substantially in its own plane. 8. The rooftop drainage device of claim 1 wherein the object receptacle is rectangular in shape. 9. The rooftop drainage device of claim 8 wherein the object receptacle is designed to hold a rectangular object, including a brick. 10. The rooftop drainage device of claim 9 wherein the filter includes a top, and three sides for fitting over a scrupper drain. 11. The rooftop drainage device of claim 1 wherein the apertures are sized sufficiently small to prevent debris, primarily leaves, from entering the filter. 12. The rooftop drainage device of claim 11 wherein the apertures are ��" in diameter. 13. The rooftop drainage device of claim 11 wherein the apertures in the at least one sides of the filter are shaped as circles. 14. The rooftop drainage device of claim 13 wherein the apertures comprise any combination of circles, squares, rectangles, trapezoids, and ovals. 15. In a rooftop drainage system, the improvement comprising a rooftop drainage device for removably covering a rooftop drainpipe, the rooftop drainage device comprising: a filter comprising at least three sides, wherein the filter further includes, a plurality of apertures in at least one of the sides for allowing liquid to pass-through the at least one side into the drainpipe, while filtering debris, and a plurality of fins on the at least one side that protrude from a surface of the filter for spacing debris away from the apertures; and an object receptacle mounted to a top of the filter and removably retaining an object, wherein a weight of the object is sufficient, such that it holds the rooftop drainage device on the rooftop and over the drainpipe without use of mechanical fasteners. 16. The rooftop drainage device of claim 15 wherein the apertures are cut out of the nonmetal material and sized sufficiently small to prevent debris, including leaves, from entering the filter. 17. The rooftop drainage device of claim 16 wherein the nonmetal material comprises at least one of fiberglass, ceramics, and plastic. 18. The rooftop drainage device of claim 17 wherein the object receptacle is rectangular in shape. 19. The rooftop drainage device of claim 18 wherein the object receptacle is designed to hold a rectangular object, including a brick. 20. The rooftop drainage device of claim 17 wherein the filter includes at least four sides and a top.
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이 특허에 인용된 특허 (59)
James R. Wright, Aggregate retaining device for drain covers.
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Palmer Dale W. (22806 66th Ave. W. Mountlake Terrace WA 98043) Pittman John F. (10721 Meridian Ave. ; Ste. 1413 Seattle WA 98133-9020), Drains for single layer synthetic roofing and waterproofing membranes.
Corsette Douglas F. (6559 Firebrand St. Los Angeles CA 90045) Jedlick Frank J. (8251 Seville Ave. ; Apt. B Southgate CA 90280), Vaned anti-vortex pool drain cover.
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