IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0899680
(2001-07-05)
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발명자
/ 주소 |
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대리인 / 주소 |
Persson, Michael J.Blankenship, Michael K.Lawson & Persson, P.C.
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인용정보 |
피인용 횟수 :
3 인용 특허 :
7 |
초록
▼
An insulator band, electrical wiring system, and kit for preventing shorting of electrical connectors. The system and kit of the present invention each utilize an insulator band that is manufactured of an insulating material, dimensioned of sufficient width to cover the terminals of the switch or ou
An insulator band, electrical wiring system, and kit for preventing shorting of electrical connectors. The system and kit of the present invention each utilize an insulator band that is manufactured of an insulating material, dimensioned of sufficient width to cover the terminals of the switch or outlet, and sized to provide a sufficient elastic force upon the switch or outlet to maintain it in position, while preventing breakage or springing from the switch or outlet. In operation, the wires are extended through the band and are connected in the normal manner to the switch or outlet. The band is then slid back over the wires, stretched over the switch or outlet, and positioned to cover the terminals of the switch or outlet. The switch or outlet is than installed into the outlet box in the in the normal manner. When the switch or outlet needs to be removed or replaced, the band is slipped back off the wires and may be reused once a new outlet or switch is installed.
대표청구항
▼
An insulator band, electrical wiring system, and kit for preventing shorting of electrical connectors. The system and kit of the present invention each utilize an insulator band that is manufactured of an insulating material, dimensioned of sufficient width to cover the terminals of the switch or ou
An insulator band, electrical wiring system, and kit for preventing shorting of electrical connectors. The system and kit of the present invention each utilize an insulator band that is manufactured of an insulating material, dimensioned of sufficient width to cover the terminals of the switch or outlet, and sized to provide a sufficient elastic force upon the switch or outlet to maintain it in position, while preventing breakage or springing from the switch or outlet. In operation, the wires are extended through the band and are connected in the normal manner to the switch or outlet. The band is then slid back over the wires, stretched over the switch or outlet, and positioned to cover the terminals of the switch or outlet. The switch or outlet is than installed into the outlet box in the in the normal manner. When the switch or outlet needs to be removed or replaced, the band is slipped back off the wires and may be reused once a new outlet or switch is installed. ising: crystallizing a molten material comprising acrylic acid and at least one impurity having a tendency to precipitate; adding solvent or a solvent mixture to the molten material in a quantity sufficient to retain at least one impurity having a tendency to precipitate in solution, wherein the solvent has a superior dissolving capacity for at least one of the impurities having a tendency to precipitate, compared to acrylic acid and wherein the mixture comprises two or more impurities having a tendency to precipitate selected from the group consisting of maleic acid, an anhydride of maleic acid, and phenothiazine, a quantitatively more significant impurity having a tendency to precipitate is retained in solution and wherein a solvent or a mixture of solvents is added which is suitable for retaining multiple impurities in solution; and removing the impurity having a tendency to precipitate, which is retained in solution, from the crystal. 10. A process for the purification of acrylic acid comprising: crystallizing a molten material comprising acrylic acid and at least one impurity having a tendency to precipitate; adding water to the molten material in a quantity sufficient to retain at least one impurity having a tendency to precipitate in solution, and wherein the mixture comprises two or more impurities having a tendency to precipitate selected from the group consisting of maleic acid, an anhydride of maleic acid, and phenothiazine, a quantitatively more significant impurity having a tendency to precipitate is retained in solution; and removing the impurity having a tendency to precipitate, which is retained in solution, from the crystal. 11. A process for the purification of acrylic acid comprising: crystallizing a molten material or a mixture comprising acrylic acid and at least one impurity having a tendency to precipitate; adding solvent or a solvent mixture to the molten material or the mixture in a quantity sufficient to retain at least one impurity having a tendency to precipitate in solution, wherein the solvent has a superior dissolving capacity for at least one of the impurities having a tendency to precipitate, compared to acrylic acid and wherein the mixture comprises two or more impurities having a tendency to precipitate selected from the group consisting of maleic acid, an anhydride of maleic acid, and phenothiazine, a quantitatively more significant impurity having a tendency to precipitate is retained in solution and wherein a solvent or a mixture of solvents is added which is suitable for retaining multiple impurities in solution; and removing any residual impurities still precipitating, despite the addition of said solvent or mixture of solvent, from the molten material. 12. The process according to claim 11, wherein the acrylic acid is purified by means of fractional crystallization. 13. The process according to claim 11, wherein the crystallized product formed, which comprises the acrylic acid in a purified form, is melted and the molten material is collected. 14. The process according to claim 13, wherein the molten material is collected in fractions. 15. The process according to claim 14, wherein the fractions obtained are subjected to at least one or more further crystallization and/or melt cycles. 16. The process according to claim 11, wherein said removing comprises employing at least one separator. 17. The process according to claim 16, wherein the separator is a filter, a suction filter or a centrifuge. 18. The process according to claim 17, wherein said solvent mixture is a water and alcohol mixture. 19. A process for the purification of acrylic acid comprising: crystallizing a molten material comprising acrylic acid and at least one impurity having a tendency to precipitate; adding solvent or a solvent mixture to the molten material in a quantity sufficient to retain at least one impurity having a tendency to precipitate in solution, wherein the solvent has a superior d
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