IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
UP-0655987
(2000-09-06)
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| 등록번호 |
US-7785699
(2010-09-20)
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발명자
/ 주소 |
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
32 |
초록
▼
A protective covering constructed from an electrostatically charged sheet having a top and bottom surface and an absorbent layer. The absorbent layer has top and bottom surfaces, the bottom surface of the absorbent layer being bonded to the top surface of the electrostatically charged sheet. The abs
A protective covering constructed from an electrostatically charged sheet having a top and bottom surface and an absorbent layer. The absorbent layer has top and bottom surfaces, the bottom surface of the absorbent layer being bonded to the top surface of the electrostatically charged sheet. The absorbent layer is divided into a plurality of cells for containing liquid spilled on the absorbent layer. The absorbent layer can be constructed from paper, open cell foam, fibrous mat, or any other absorbent material. In the preferred embodiment of the present invention, the cells are constructed by providing hydrophobic barriers in the absorbent layer. The barriers can be constructed from paraffin, plastic, or any other material that can penetrate the absorbent layer. In one embodiment of the present invention, a hydrophobic layer is bonded to the top surface of the absorbent layer. The hydrophobic layer has a plurality of pores that allow liquid spilled on the hydrophobic layer to penetrate the hydrophobic layer and be absorbed by the absorbent layer.
대표청구항
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What is claimed is: 1. A protective covering comprising: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being bonded to said top surface of said electrostatically
What is claimed is: 1. A protective covering comprising: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being bonded to said top surface of said electrostatically charged sheet, said absorbent layer being divided into a plurality of cells for containing liquid within the boundaries of said cells, said liquid being prevented from moving between said cells. 2. The protective covering of claim 1, wherein said absorbent layer comprises paper. 3. The protective covering of claim 1, wherein said absorbent layer comprises an open cell foam. 4. The protective covering of claim 3, wherein said foam is electrostatically charged. 5. The protective covering of claim 1, wherein said absorbent layer comprises a fibrous mat. 6. The protective covering of claim 5, wherein said fibrous mat is electrostatically charged. 7. The protective covering of claim 1, wherein said absorbent layer comprises a plurality of hydrophobic barriers, said hydrophobic barriers defining said cells. 8. The protective covering of claim 1 further comprising a hydrophobic layer bonded to said top surface of said absorbent layer, said hydrophobic layer having a plurality of pores therethrough, said pores allowing liquid to penetrate said hydrophobic layer and be absorbed by said absorbent layer. 9. A protective covering for protecting an exposed surface: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being in contact with said top surface of said electrostatically charged sheet, wherein said absorbent layer comprises an open cell foam. 10. The protective covering of claim 9, wherein said foam is electrostatically charged. 11. A protective covering for protecting an exposed surface: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being in contact with said top surface of said electrostatically charged sheet, wherein said absorbent layer comprises a fibrous mat. 12. The protective covering of claim 11, wherein said fibrous mat is electrostatically charged. 13. A protective covering for protecting an exposed surface: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being in contact with said top surface of said electrostatically charged sheet, wherein said absorbent layer comprises a plurality of hydrophobic barriers, said hydrophobic barriers defining a plurality of cells for containing liquid within the boundaries of said cells, said liquid being prevented from moving between said cells by said barriers. 14. A protective covering for protecting an exposed surface: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being in contact with said top surface of said electrostatically charged sheet, wherein said absorbent layer further comprises a hydrophobic layer bonded to said top surface of said absorbent layer, said hydrophobic layer having a plurality of pores therethrough, said pores allowing liquid to penetrate said hydrophobic layer and be absorbed by said absorbent layer. 15. A protective covering for protecting an exposed surface: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being in contact with said top surface of said electrostatically charged sheet, wherein said electrostatically charged layer is bonded to said absorbent layer. 16. A protective covering for protecting an exposed surface: a water-impermeable electrostatically charged sheet having a top and bottom surface; and an absorbent layer having top and bottom surfaces, said bottom surface of said absorbent layer being in contact with said top surface of said electrostatically charged sheet, wherein said absorbent layer is divided into a plurality of cells for containing liquid by liquid impermeable barriers that prevent liquid from moving from one cell to another.
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