US3887349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing ribbon glass having a metal oxide coating
Assignee: Nippon Sheet Glass Co Ltd
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Filing: 1973-11-27
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Granted: 1975-06-03
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Expires: 1993-11-27
Abstract
Abstract This invention relates to an apparatus for forming a coating of metal oxides on the surface of ribbon glass. When ribbon glass having the aforesaid metal oxide coating is manufactured with the conventional apparatus, there appears those in which this metal oxide coating is not normal or in which the product is of poor quality. For instance, there are those whose reflectivity of visible rays is small or those in which there are formations of spotted defects in the surface of the ribbon glass. In consequence of our investigations into the cause of the foregoing deficiencies, we found that the principal role was played by the temperature of the atmosphere of the locale where the solution of metal oxides was sprayed. And as a way to eliminate this cause, we conceived of blowing in a heated gas separately. That is, the temperature of the spraying locale was maintained under optimal conditions by adjusting the temperature and amount of the heated gas blown in. In this way, not only the amount of poor quality products were reduced greatly but also products of better quality were obtained.
Inventors
- 👤 Naotomo Akashi
- 👤 Katsuji Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:40
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; B; B05; B05B; B05B14/00; B05B14/30; C03C17/001; C03C17/002; B05B13/00; B05B13/02; B05B13/04; B05B13/0405; B05B13/041; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
199 words
IN AN APPARATUS FOR MANUFACTURING RIBBON GLASS HAVING AS PART THEREOF MEANS FOR FORMING A METAL OXIDE COATING ON THE SURFACE OF RIBBON GLASS WHICH IS POSITIONED AT A SPRAYING LOCALE BETWEEN MEANS FOR FORMING RIBBON GLASS AND A LEHR OR WITHIN THE LEHR, SAID SEAMS FOR FORMING A METAL OXIDE COATING INCLUDING SPRAY GUNS WHICH FACE THE SURFACE OF THE RIBBON GLASS AND MOVABLE ACROSS THE RIBBON GLASS, MEANS FOR FEEDING METAL COMPOUND SOLUTION TO THE SPRAY GUNS, MEANS FOR SPRAYING THE SOLUTION FROM THE SPRAY GUNS, A PAIR OF EXHAUST DUCTS DISPOSED ON BOTH SIDES OF THE PATH OF TRAVEL OF THE SPRAY GUNS HAVING SUCTION PORTS FACING DOWNWARDLY FROM THE EXHAUST DUCTS AND AN EXHAUST SYSTEM CONNECTED TO THE EXHAUST DUCTS, THE IMPROVEMENT COMPRISING WIND DUCT MEANS HAVING OPENINGS IN THE SPRAYING LOCALE, DEFINED BY THE EXHAUST DUCTS AND THE RIBBON GLASS, FOR BLOWING A HEATED GAS INTO THE SPRAY LOCALE, A GAS BURNER MEANS CONNECTED TO THE WIND DUCT MEANS, AND DILUENT AIR-INTAKE OPENINGS DISPOSED IN SAID WIND DUCT MEANS BETWEEN SAID BURNER MEANS AND SAID OPENING FOR SUPPLYING DILUENT AIR TO CONTROL THE TEMPERATURE OF THE PRODUCTS OF COMBUSTION FROM SAID GAS BURNER MEANS.
Claim 2
Dependent Claim
199 words
IN AN APPARATUS FOR MANUFACTURING RIBBON GLASS HAVING AS PART THEREOF MEANS FOR FORMING A METAL OXIDE COATING ON THE SURFACE OF RIBBON GLASS WHICH IS POSITIONED AT A SPRAYING LOCALE BETWEEN MEANS FOR FORMING RIBBON GLASS AND A LEHR OR WITHIN THE LEHR, SAID SEAMS FOR FORMING A METAL OXIDE COATING INCLUDING SPRAY GUNS WHICH FACE THE SURFACE OF THE RIBBON GLASS AND MOVABLE ACROSS THE RIBBON GLASS, MEANS FOR FEEDING METAL COMPOUND SOLUTION TO THE SPRAY GUNS, MEANS FOR SPRAYING THE SOLUTION FROM THE SPRAY GUNS, A PAIR OF EXHAUST DUCTS DISPOSED ON BOTH SIDES OF THE PATH OF TRAVEL OF THE SPRAY GUNS HAVING SUCTION PORTS FACING DOWNWARDLY FROM THE EXHAUST DUCTS AND AN EXHAUST SYSTEM CONNECTED TO THE EXHAUST DUCTS, THE IMPROVEMENT COMPRISING WIND DUCT MEANS HAVING OPENINGS IN THE SPRAYING LOCALE, DEFINED BY THE EXHAUST DUCTS AND THE RIBBON GLASS, FOR BLOWING A HEATED GAS INTO THE SPRAY LOCALE, A GAS BURNER MEANS CONNECTED TO THE WIND DUCT MEANS, AND DILUENT AIR-INTAKE OPENINGS DISPOSED IN SAID WIND DUCT MEANS BETWEEN SAID BURNER MEANS AND SAID OPENING FOR SUPPLYING DILUENT AIR TO CONTROL THE TEMPERATURE OF THE PRODUCTS OF COMBUSTION FROM SAID GAS BURNER MEANS.
Claim 3
Dependent Claim
199 words
In an apparatus for manufacturing ribbon glass having as part thereof means for forming a metal oxide coating on the surface of ribbon glass which is positioned at a spraying locale between means for forming ribbon glass and a lehr or within the lehr, said means for forming a metal oxide coating including spray guns which face the surface of the ribbon glass and movable across the ribbon glass, mEans for feeding metal compound solution to the spray guns, means for spraying the solution from the spray guns, a pair of exhaust ducts disposed on both sides of the path of travel of the spray guns having suction ports facing downwardly from the exhaust ducts and an exhaust system connected to the exhaust ducts, the improvement comprising wind duct means having openings in the spraying locale, defined by the exhaust ducts and the ribbon glass, for blowing a heated gas into the spray locale, a gas burner means connected to the wind duct means, and diluent air-intake openings disposed in said wind duct means between said burner means and said openings for supplying diluent air to control the temperature of the products of combustion from said gas burner means.
Claim 4
Dependent Claim
199 words
In an apparatus for manufacturing ribbon glass having as part thereof means for forming a metal oxide coating on the surface of ribbon glass which is positioned at a spraying locale between means for forming ribbon glass and a lehr or within the lehr, said means for forming a metal oxide coating including spray guns which face the surface of the ribbon glass and movable across the ribbon glass, mEans for feeding metal compound solution to the spray guns, means for spraying the solution from the spray guns, a pair of exhaust ducts disposed on both sides of the path of travel of the spray guns having suction ports facing downwardly from the exhaust ducts and an exhaust system connected to the exhaust ducts, the improvement comprising wind duct means having openings in the spraying locale, defined by the exhaust ducts and the ribbon glass, for blowing a heated gas into the spray locale, a gas burner means connected to the wind duct means, and diluent air-intake openings disposed in said wind duct means between said burner means and said openings for supplying diluent air to control the temperature of the products of combustion from said gas burner means.
References Cited (Backward Citations)
US3689304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |