US2007131597A1PendingUtilityA1

Drain cover

Assignee: CHEN LI-HUANPriority: Dec 8, 2005Filed: Dec 8, 2005Published: Jun 14, 2007
Est. expiryDec 8, 2025(expired)· nominal 20-yr term from priority
Inventors:Li Huan Chen
E03F 5/06E02D 29/14
36
PatentIndex Score
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Claims

Abstract

A drain cover is primarily composed of a layer of eco-material paved on the drain cover. The eco-material is made by stirring wastes of irregular shapes (e.g., slag, glass fragments, ceramic or waste gravels) with an adhesive agent and fiber glass yarns. By paving the eco-material on drain holes of the drain cover, trashes and grits can be prevented from flowing into a drain to cause an imperfect draining and a clogging. The wastes after being stirred with the adhesive agent and the fiber glass yarns can prevent insects from crawling out of the drain holes, and can reduce a drifting of odor in the drain. In addition, the wastes of irregular shapes can also increase a slip-proof effect to the drain cover, such that a pedestrian will not be tripped by the drain holes, thereby increasing a safety of walking of the pedestrian.

Claims

exact text as granted — not AI-modified
1 . A drain cover being provided with a plurality of penetrating drain holes for allowing water to flow into, wherein a layer of eco-material made by stirring wastes of irregular shapes with an adhesive agent and fiber glass yarns is paved on the drain cover and drain holes of the drain cover to prevent trashes and grits from flowing into a drain through the drain holes, thereby causing an imperfect draining and a clogging; the eco-material paved on the drain holes being able to effectively prevent insects from crawling out of the drain holes and to reduce a drifting of odor in the drain; after being stirred with the adhesive agent and fiber glass yarns, the wastes of irregular shapes also being able to effectively increase a slip-proof effect to the drain cover, not allowing a pedestrian to be tripped by the drain holes, so as to improve a safety of walking.  
   
   
       2 . The drain cover according to  claim 1 , wherein the eco-materials of wastes can be further slag, glass fragments, ceramic, waste gravels of different shapes and sizes of grains, and other related eco-wastes having a stronger hardness and a better wear resistance.  
   
   
       3 . The drain cover according to  claim 1 , wherein the adhesive agent can be further a resin, a combining glue, and other related chemical agent which can be used to assemble materials.  
   
   
       4 . The drain cover according to  claim 1 , wherein the wastes of eco-material with a larger grain size are put below the drain cover, whereas the wastes with a smaller grain size are put above the drain cover, so as to prevent grits along with rainwater from flowing into the drain to cause a clogging.  
   
   
       5 . The drain cover according to  claim 1 , wherein the shape of drain cover can further be all kinds of arc shape and rectangular shape, after being paved by the eco-material layer which is made by stirring the wastes, adhesive agent, fiber glass yarns, and other related eco-material.  
   
   
       6 . The drain cover according to  claim 1 , wherein a surface of drain cover and an interior of eco-material are further coated or stirred with a light reflecting and light sensitive luminous chemical, an ultraviolet color-changing raw material, a photochromic material, a microcapsule liquid crystal which can change its color by temperature, and other related chemical material which is provided with an enhanced effect of alerting in night, so as to increase a safety of walking of a pedestrian and moving of a vehicle.

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