Method of manufacturing windshield using ion beam milling of glass substrate(s)
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-014/34
C03C-027/00
출원번호
US-0074685
(2002-02-14)
발명자
/ 주소
Thomsen, Scott V.
Petrmichl, Rudolph Hugo
Longobardo, Anthony V.
Veerasamy, Vijayen S.
Hall, Jr., David R.
Luten, Henry
출원인 / 주소
Guardian Industries Corp.
대리인 / 주소
Nixon & Vanderhye P.C.
인용정보
피인용 횟수 :
18인용 특허 :
39
초록
This invention relates to a method of making a laminated window such as a vehicle windshield. At least one of the two glass substrates of the window is ion beam milled prior to heat treatment and lamination. As a result, defects in the resulting window and/or haze may be reduced.
대표청구항▼
This invention relates to a method of making a laminated window such as a vehicle windshield. At least one of the two glass substrates of the window is ion beam milled prior to heat treatment and lamination. As a result, defects in the resulting window and/or haze may be reduced. 1. An apparatus for
This invention relates to a method of making a laminated window such as a vehicle windshield. At least one of the two glass substrates of the window is ion beam milled prior to heat treatment and lamination. As a result, defects in the resulting window and/or haze may be reduced. 1. An apparatus for treating a fibrous web comprising: at least one supporting surface arranged to support a surface of the fibrous web; at least one sealing device positionable adjacent an opposite surface of the fibrous web; said at least one sealing device comprising a sealing element and a holder structured and arranged to hold and to enable lateral sliding movement of said sealing element cross-wise to a web travel direction; a pressing device which moves the sealing element towards the opposite surface of the fibrous web; and the sealing element comprising an outwardly curved surface, wherein the outwardly curved surface is engagable with a moving surface. 2. The apparatus in accordance with claim 1, wherein the lateral sliding movement facilitates installation and removal of said sealing element.3. The apparatus in accordance with claim 1, wherein the fibrous web comprises at least one of a paper and board web.4. The apparatus in accordance with claim 1, further comprising at least one supporting belt arranged to support and guide the fibrous web over said at least one supporting surface and past said at least one sealing device.5. The apparatus in accordance with claim 4, wherein said at least one supporting belt comprises at least one of a dewatering belt, a press belt, and a mesh belt.6. The apparatus in accordance with claim 4, wherein said at least one sealing device is positioned adjacent a surface of said at least one supporting belt opposite the surface supporting the fibrous web.7. The apparatus in accordance with claim 4, wherein said at least one supporting surface is structured and arranged to be one of a moving or stationary surface.8. The apparatus in accordance with claim 1, wherein said at least one sealing element is structured and arranged to form a non-contacting seal with the fibrous web.9. The apparatus in accordance with claim 1, wherein said holder comprises a guide which is structured and arranged to allow said sealing element to be laterally drawn out of said holder.10. The apparatus in accordance with claim 1, further comprising an air-based device, and said at least one sealing device is coupled to said air-based device.11. The apparatus in accordance with claim 10, wherein said air-based device comprises at least one of a steam blower box, a suction box, a stabilizer, and ventilation fittings.12. The apparatus in accordance with claim 10, wherein said air based device is positionable in one of a press section and a drying section.13. The apparatus in accordance with claim 1, wherein said sealing element comprises a flexible sealing blade.14. The apparatus in accordance with claim 13, wherein the pressing device is structured and arranged so that, when said flexible sealing blade is held in said holder, said pressing device is positionable to move said flexible sealing blade from one of a maintenance or changing position to an operating position, and said pressing device is positionable to move said flexible sealing blade from said operating position to the one of the maintenance or the changing position.15. The apparatus in accordance with claim 14, wherein said flexible sealing blade comprises a sealing section, which, when said flexible sealing blade is in the operating position, is located in vicinity of the opposite surface of the fibrous web.16. The apparatus in accordance with claim 15, wherein said flexible sealing blade in said one of the maintenance or the changing position is at least substantially flat.17. The apparatus in accordance with claim 15, wherein said flexible sealing blade in said operating position is outwardly curved.18. The apparatus in accordance with claim 15, wherein a distance of said sealing section of said flexible sealing blade from the fibrous web can be set via said pressing device.19. The apparatus in accordance with claim 15, further comprising a supporting belt arranged to guide the fibrous web over said at least one supporting surface an d past said at least one sealing device, wherein a distance of said sealing section of said flexible sealing blade from said supporting belt can be set via said pressing device. 20. The apparatus in accordance with claim 1, wherein said pressing device comprises a pressing blade.21. The apparatus in accordance with claim 20, wherein said pressing blade has a greater stiffness than said flexible sealing blade.22. The apparatus in accordance with claim 20, wherein said pressing device is accommodated in a recess in a carrier.23. The apparatus in accordance with claim 22, wherein said carrier comprises an air-based device.24. The apparatus in accordance with claim 22, wherein said recess is at least partially covered by said pressing blade.25. The apparatus in accordance with claim 1, wherein said pressing device is structured and arranged to be laterally guidable out of said holder.26. The apparatus in accordance with claim 1, wherein said sealing element comprises a sealing strip.27. The apparatus in accordance with claim 26, wherein said sealing strip is mounted fixedly.28. The apparatus in accordance with claim 26, wherein said sealing strip is mounted in a compliant or sprung manner.29. The apparatus in accordance with claim 26, wherein said sealing strip is held in said holder, which is coupled to a recess of a carrier via a spring.30. The apparatus in accordance with claim 29, wherein the spring is coupled to a bottom of said recess and said carrier comprises an air-based device.31. The apparatus in accordance with claim 26, wherein said sealing strip is held in said holder, the sealing strip being pivotably mounted in an area of a recess in a carrier comprising an air-based device.32. The apparatus in accordance with claim 1, wherein said holder comprises a guide element that is pivotable relative to said sealing element to facilitate removal of said sealing element.33. The apparatus in accordance with claim 1, further comprising an air-based device, and said at least one sealing device is structured and arranged to separate two zones which are acted on with different vacuum pressures.34. The apparatus in accordance with claim 1, wherein said sealing element extends over an entire machine width.35. The apparatus in accordance with claim 1, wherein one of: said sealing element extends over only a part of a machine width; and said sealing element is subdivided over its width into at least two zones. 36. The apparatus in accordance with claim 1, wherein the sealing element is bendable into a curved arrangement which includes the outwardly curved surface.37. An apparatus for treating a fibrous web comprising: at least one supporting surface arranged to support a surface of the fibrous web; at least one sealing device positionable adjacent an opposite surface of the fibrous web; said at least one sealing device comprising a sealing element and a holder structured and arranged to hold and to enable lateral sliding movement of said sealing element cross-wise to a web travel direction; a pressing device which moves the sealing element towards the opposite surface of the fibrous web; the sealing element comprising an outwardly curved surface; and an actuating element structured and arranged to pivotably adjust said holder. 38. An apparatus for treating a fibrous web in combination with an air-based device positioned within a drying section, said combination comprising: at least one supporting surface arranged to support a surface of the fibrous web; at least one sealing device positionable adjacent an opposite surface of the fibrous web; said at least one sealing device comprising a sealing element and a holder structured and arranged to hold and to enable lateral sliding movement of said sealing element cross-wise to a web travel direction; said at least one sealing device being positioned as an intermediate seal to separate an upper and a lower vacuum zone from each other. 39. The apparatus i
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