IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0260487
(2002-09-30)
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발명자
/ 주소 |
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출원인 / 주소 |
- SSW Holdings Company, Inc.
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대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
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In one embodiment, the present invention provides a coated steel wire oven rack. The preferred coated steel wire oven rack includes a plurality of elongated steel wire members joined together to form an oven rack having an outer surface. The plurality of elongated steel wire members are made from a
In one embodiment, the present invention provides a coated steel wire oven rack. The preferred coated steel wire oven rack includes a plurality of elongated steel wire members joined together to form an oven rack having an outer surface. The plurality of elongated steel wire members are made from a steel rod material containing from about 80 to about 99.9% by weight of iron, from about 0.001 to about 0.08% by weight of carbon and from about 0.001 to about 0.2% by weight of a carbon stabilizing transition metal, preferably selected from the group consisting of Vanadium, Tantalum, Titanium and Niobium. The plurality of elongated steel wire members are preferably made from the steel rod material by drawing the steel rod material to form steel wire; wherein the diameter of the cross-sectional area of the steel rod material is reduced by at least about 20% when the steel rod material is drawn to form the steel wire. The outer surface of the oven rack is coated by a glass material, preferably porcelain; wherein the amount of carbon in the steel rod material, the amount of carbon stabilizing transition metal in the steel rod material and the degree to which the diameter of the cross-sectional area of the steel rod material is reduced, when the steel wire is drawn from the steel rod material, is optimized so as to prevent chipping of the glass material from the outer surface due to the release of hydrogen gas from the steel wire members when the steel wire is either heated or cooled. In preferred embodiments, the glass material is coated onto the oven rack in two distinct coating steps. The present invention also includes a method of making a coated steel wire oven rack comprising the steps of providing steel rod material; drawing the steel rod material to form steel wire; forming a plurality of elongated steel wire members; joining the plurality of steel wire members to one another to form a steel wire oven rack; and coating the steel wire oven rack with a glass material, preferably porcelain.
대표청구항
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1. A coated steel wire oven rack designed to be received within an oven cavity, the coated steel wire oven rack comprising:a plurality of elongated steel wire members joined together to form an oven rack having an outer surface; the plurality of elongated steel wire members being made from a steel r
1. A coated steel wire oven rack designed to be received within an oven cavity, the coated steel wire oven rack comprising:a plurality of elongated steel wire members joined together to form an oven rack having an outer surface; the plurality of elongated steel wire members being made from a steel rod material containing from about 80 to about 99.9% by weight of iron, from about 0.001 to about 0.08% by weight of carbon and from about 0.001 to about 0.2% by weight of a carbon stabilizing transition metal selected from the group consisting of Vanadium, Tantalum, Titanium and Niobium; the plurality of elongated steel wire members being made from the steel rod material by drawing the steel rod material to form steel wire; wherein the diameter of the cross-sectional area of the steel rod material is reduced by at least about 20% when the steel rod material is drawn to form the steel wire; the outer surface of the oven rack being coated by a glass material; wherein the amount of carbon in the steel rod material, the amount of carbon stabilizing transition metal in the steel rod material and the degree to which the diameter of the cross-sectional area of the steel rod material is reduced, when the steel wire is drawn from the steel rod material, is balanced so as to prevent chipping of the glass material away from the outer surface due to the release of hydrogen gas from the steel wire members when the steel wire is either heated or cool. 2. The coated wire steel oven rack of claim 1, wherein the glass material is porcelain.3. The coated steel wire oven rack of claim 1, wherein the glass material is coated onto the outer surface of the oven rack in two distinct coating steps.4. The coated steel wire oven rack of claim 3, wherein the glass material is porcelain.5. The coated steel wire oven rack of claim 3, wherein the two distinct coating steps are two separate electrostatic coating steps in which a first ground coat of powder glass is applied and then a second top coat of powdered glass is applied in a subsequent electrostatic coating application.6. The coated steel wire oven rack of claim 3, wherein the glass material is porcelain.7. The coated steel wire oven rack of claim 1, wherein the steel rod material is reduced by at least 30% when the steel rod material is drawn to form the steel wire.8. The coated steel wire oven rack of claim 7, wherein the steel rod material is reduced by at least 40% when the steel rod material is drawn to form the steel wire.9. The coated steel wire oven rack of claim 8, wherein the steel rod material is reduced by at least 45% when the steel rod material is drawn to form the steel wire.10. The coated steel wire oven rack of claim 9, wherein the steel rod material is reduced by at least 50% when the steel rod material is drawn to form the steel wire.11. The coated steel wire oven rack of claim 1, wherein the glass material is coated onto the outer surface of the oven rack by a wet process.12. The coated steel wire oven rack of claim 11, wherein the wet process is selected from the group consisting of wet spray; electrostatic wet spray; wet flow coating; wet dip; electrophoretic deposition; and a combination thereof.13. The coated wire oven rack of claim 12, wherein the glass material is porcelain.14. The coated wire oven rack of claim 13, further including the step of heating the wet process-applied glass coating to a temperature of about 1550° F. or greater.15. A coated steel wire cooking surface, the coated steel wire cooking surface comprising:a plurality of elongated steel wire members joined together to form a cooking surface having an outer surface; the plurality of elongated steel wire members being made from a steel rod material containing from about 80 to about 99.9% by weight of iron, from about 0.001 to about 0.08% by weight of carbon and from about 0.001 to about 0.2% by weight of a carbon stabilizing transition metal selected from the group consisting of Vanadium, Tantalum, Titanium and Niobium; the plurality of elongated steel wire members being made from the steel rod material by drawing the steel rod material to form steel wire; wherein the diameter of the cross-sectional area of the steel rod material is reduced by at least about 20% when the steel rod material is drawn to form the steel wire; the outer surface of the cooking surface being coated by a glass material; wherein the amount of carbon in the steel rod material, the amount of carbon stabilizing transition metal in the steel rod material and the degree to which the cross-sectional area of the steel rod material is reduced when the steel wire is drawn from the steel rod material is balanced so as to prevent chipping of the porcelain away from the outer surface due to the release of hydrogen gas from the steel material when the steel wire is either heated or cool; wherein the glass material is coated onto the steel wire in two distinct coating steps. 16. The coated steel wire cooking surface of claim 15, wherein the two distinct coating steps are two separate electrostatic coating steps in which a first ground coat of powder glass is applied and then a second top coat of powdered glass is applied in a subsequent electrostatic coating application.17. The coated steel wire cooking surface of claim 15, wherein the steel rod material is reduced by at least 30% when the steel rod material is drawn to form the steel wire.18. The coated steel wire cooking surface of claim 17, wherein the steel rod material is reduced by at least 40% when the steel rod material is drawn to form the steel wire.19. The coated steel wire cooking surface of claim 18, wherein the steel rod material is reduced by at least 45% when the steel rod material is drawn to form the steel wire.20. The coated steel wire cooking surface of claim 19, wherein the steel rod material is reduced by at least 50% when the steel rod material is drawn to form the steel wire.21. The coated steel wire cooking surface of claim 15, wherein the glass material is coated onto the outer surface of the oven rack by a wet process.22. The coated steel wire cooking surface of claim 21, wherein the wet process is selected from the group consisting of wet spray; electrostatic wet spray; wet flow coating; wet dip; electrophoretic deposition; and a combination thereof.23. The coated steel wire cooking surface of claim 22, wherein the glass material is porcelain.24. The coated steel wire cooking surface of claim 23, further including the step of heating the wet process-applied glass coating to a temperature of about 1550° F. or greater.
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