Durable protective cover for preventing spilled liquids from flowing into drains or holes
View Patent ↗Durable protective covers for drains and other holes are provided which prevent spills and unwanted liquids from flowing therein. The protective covers include a durable backing layer and a pliable, tacky sealing layer which conforms and adheres to a surface surrounding the drain to reduce or eliminate the flow of liquids into the drain. A low-density bonding layer is provided between the pliable, tacky sealing layer and the durable backing layer in order to provide significantly improved adherence between the layers.
1. A durable protective cover for installation over a drain comprising:
a durable backing layer;
a pliable, tacky sealing layer structured and arranged to block spills from entering the drain; and
a low-density bonding layer between the durable backing layer and the pliable, tacky sealing layer.
2. The protective cover of claim 1 , wherein the low-density bonding layer has a thickness of at least 0.01 inch.
3. The protective cover of claim 1 , wherein the low-density bonding layer has a thickness of from about 0.02 to about 0.25 inch.
4. The protective cover of claim 1 , wherein the low-density bonding layer has a density of less than 0.26 ounces per cubic inch.
5. The protective cover of claim 1 , wherein the low-density bonding layer has a weight per area of less than 20 ounces per square yard.
6. The protective cover of claim 1 , wherein the low-density bonding layer comprises entanglement fibers comprising polyester, polypropylene, poly(ethylene propylene), polyvinylchloride, fiberglass, nylon, cotton and/or urethane.
7. The protective cover of claim 1 , wherein the low-density bonding layer comprises polyester.
8. The protective cover of claim 1 , wherein the low-density bonding layer comprises fleece.
9. The protective cover of claim 1 , wherein the durable backing layer has a thickness of from about 0.01 to about 0.25 inch.
10. The protective cover of claim 1 , wherein the durable backing layer has a length of at least 1 foot and a width of at least 1 foot.
11. The protective cover of claim 1 , wherein the durable backing layer comprises natural rubber, synthetic rubber, nitrile rubber, thermoplastic olefin, polyvinyl chloride and/or chlorosulfonated polyethylene.
12. The protective cover of claim 1 , wherein the durable backing layer comprises rubber.
13. The protective cover of claim 1 , wherein the durable backing layer comprises vinyl.
14. The protective cover of claim 1 , wherein the pliable, tacky sealing layer has a thickness of from 0.01 to 2 inches.
15. The protective cover of claim 1 , wherein the pliable, tacky sealing layer has a length of at least 1 foot and a width of at least 1 foot.
16. The protective cover of claim 1 , wherein the pliable, tacky sealing layer has a durometer hardness of less than 30 shore A.
17. The protective cover of claim 1 , wherein the pliable, tacky sealing layer comprises urethane, polyurethane, polyvinyl chloride and/or silicone.
18. The protective cover of claim 1 , further comprising an adhesive layer between the low-density bonding layer and the durable backing layer.
19. The protective cover of claim 18 , wherein the adhesive layer comprises a hot melt adhesive.