[특허]Apparatus and process for making glass and glass gobs

Owens-Brockway Glass Container Inc.

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특허 상세정보

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Apparatus and process for making glass and glass gobs

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C03B-001/02 C03B-003/00 C03B-007/096
출원번호	US-0255417 (2014-04-17)
등록번호	US-9932258 (2018-04-03)
발명자 / 주소	Clark, Terence J
출원인 / 주소	Owens-Brockway Glass Container Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 13

초록

An apparatus and process for making glass and glass gobs on demand. A sheet of molten glass is provided in a staging section. The sheet of molten glass is held within the staging section when there is no demand for glass articles. When there is a demand for production of glass articles, a portion of the sheet of molten glass is flowed into a gob forming section.

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1. A process for making glass that includes: (a) providing a sheet of glass batch materials;(b) flowing said sheet of glass batch materials through a melting section having a downward sloping surface;(c) heating one or more portions of said sheet of glass batch materials to melt the glass batch materials on said downward sloping surface to produce a sheet of molten glass;(d) flowing said sheet of molten glass from said melting section into a staging section having a length that extends from said melting section to a forming section; and(e) allowing said sheet of molten glass to cool and solidify along the entire length of said staging section to produce a solid glass sheet that extends from said melting section to said forming section. 2. The process set forth in claim 1 that also includes: prior to said step (a), compacting glass batch materials to produce said sheet of glass batch materials, wherein said sheet of glass batch materials has a thickness of less than ten centimeters. 3. The process set forth in claim 1 wherein said steps (b) and (c) are carried out under reduced pressure to promote release of gas bubbles from the molten glass. 4. The process set forth in claim 1 that includes: vibrating said sheet of molten glass on said downward sloping surface to promote release of gas bubbles from the molten glass. 5. The process set forth in claim 1 wherein said one or more portions of said sheet of glass batch materials are selectively and locally heated in said step (c) by microwave energy, electric heaters, induction heaters, fuel-fired heaters, microwave generators, or a combination thereof. 6. The process set forth in claim 1 wherein said sheet of glass batch materials has a thickness of less than three centimeters, and said one or more portions of said sheet of glass batch materials are selectively and locally heated by microwave energy having a frequency in the range of 915 MHz to 2450 MHz. 7. The process set forth in claim 1 that includes: after said step (e), heating said solid glass sheet to return the solid glass to a flowable molten state. 8. The process set forth in claim 1 that includes: flowing said sheet of molten glass from said staging section into said forming section and forming glass products from said sheet of molten glass. 9. The process set forth in claim 8 wherein said sheet of molten glass has a thickness in the range of two centimeters to seven centimeters, and said thickness of said sheet of molten glass is generally uniform as said sheet of molten glass flows through said melting section and said staging section. 10. The process set forth in claim 1 that does not include: holding or stirring a volume of molten glass in a melting tank or pot. 11. The process set forth in claim 1 wherein the sheet of molten glass is allowed to cool and solidify within the staging section on a surface of a refractory metal or ceramic material. 12. The process set forth in claim 1 wherein said sheet of molten glass is allowed to cool and solidify within said melting section, said staging section, and said forming section to produce a solid glass sheet that extends from said melting section into said forming section. 13. A process for making glass that includes: (a) providing a sheet of molten glass having a thickness in the range of two centimeters to seven centimeters in a staging section, wherein said staging section has a length that extends from a melting section to a forming section;(b) allowing said sheet of molten glass to cool and solidify along the entire length of said staging section when there is no demand for glass production to produce a solid glass sheet that extends from said melting section to said forming section; and(c) flowing a portion of said sheet of molten glass from said staging section into said forming section when there is a demand for glass production. 14. The process set forth in claim 13 that includes: after said step (c), forming glass products from said sheet of molten glass. 15. The process set forth in claim 14 that includes: after said step (b), heating said solid glass sheet to return said sheet to a flowable molten state when demand for glass production resumes. 16. The process set forth in claim 13 that includes: before said step (c), cooling said portion of said sheet of molten glass to a desired temperature for cutting. 17. The process set forth in claim 13 that includes: before said step (c), flowing said portion of said sheet of molten glass into a narrowing channel to increase the thickness of said portion of said sheet of molten glass. 18. The process set forth in claim 13 that includes: after said step (c), cutting said portion of said sheet of molten glass from a remaining portion of said sheet of molten glass to form a discrete gob of molten glass having a predetermined length, width, and thickness. 19. The process set forth in claim 18 that includes: manipulating said discrete gob of molten glass into a suitable shape for being formed in a glass forming machine. 20. The process set forth in claim 18 that includes: forming said discrete gob of molten glass into a glass article. 21. The process set forth in claim 13 that includes: after said step (c), splitting said sheet of molten glass into multiple continuous sheets of molten glass. 22. The process set forth in claim 21 that includes: simultaneously cutting multiple discrete gobs of molten glass from said multiple continuous sheets of molten glass. 23. The process set forth in claim 13 wherein said sheet of molten glass is supported within said staging section and within said forming section on a surface of a refractory metal or ceramic material. 24. A process for making glass including: (a) providing glass batch materials to a melting section;(b) heating the glass batch materials in the melting section to produce a sheet of molten glass having a thickness in the range of two centimeters to seven centimeters;(c) directing said sheet of molten glass to flow from the melting section into a staging section that extends between the melting section and a forming section;(d) allowing the sheet of molten glass to cool and solidify within the staging section to produce a solid glass sheet, the sheet of molten glass cooling and solidifying in the staging section on a surface of a refractory metal or ceramic material; and then(e) heating the solid glass sheet to return the solid glass to a flowable molten state. 25. The process set forth in claim 24 wherein the glass batch materials are heated in the melting section on a surface of a refractory metal or ceramic material. 26. The process set forth in claim 24 including: directing the sheet of molten glass into a forming section, and forming glass products from said sheet of molten glass.

이 특허에 인용된 특허 (13)

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Apparatus and process for making glass and glass gobs

초록

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Apparatus and process for making glass and glass gobs

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이 특허에 인용된 특허 (13)

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