Patent US2152895A successfully refreshed from Google Patents.
US3019136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating glass sheets
Assignee: PPG Industries Inc
•
Filing: 1958-03-05
•
Granted: 1962-01-30
•
Expires: 1978-03-05
Abstract
No abstract record available.
Inventors
- 👤 James E Auffenorde
- 👤 Hugh P Penone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:42
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/001; C03C17/002; H; H01; H01B; H01B1/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
THE IMPROVEMENT IN COATING REFRACTORY SHEETS OF IRREGULAR OUTLINE WITH A CONTINUOUS FILM CONTAINING METAL OXIDE BY HEATING A SHEET TO AN ELEVATED TEMPERATURE ABOVE 400*F. AND BELOW THE TEMPERATURE AT WHICH THE SHEET BECOMES MOLTEN AND SPRAYING A DISPERSION OF A HYDROLYZABLE METAL COMPOUND ONTO A SURFACE OF THE HEATED SHEET WHILE PROVIDING RELATIVE MOVEMENT BETWEEN THE SHEET AND THE SPRAY WHICH COMPRISES APPLYING A PLURALITY OF DISCRETE, SPRAYS OF METAL OXIDE FILM FORMING MATERIAL ALONG DIVERGENT AXES TO INTERSECT LOCALIZED PORTIONS OF THE SHEET SURFACE TO BE COATED ALONG PARALLEL PATHS OF RELATIVE MOVEMENT, THE PARALLEL PATHS OF INTERSECTION COMBINING TO COVER THE ENTIRE SHEET AFTER THE DIFFERENT PORTIONS OF THE SHEET HAVE BEEN EXPOSED TO THE DIVERGENT SPRAYS FROM EDGE TO EDGE ALONG THE PATHS OF RELATIVE MOVEMENT, EACH SPRAY INTERSECTING A PORTION OF THE SURFACE OF SAID HEATED SHEET WITHOUT INTERMINGLING WITH ANOTHER SPRAY PRIOR TO CONTACTING SAID SURFACE.
Claim 2
Dependent Claim
153 words
THE IMPROVEMENT IN COATING REFRACTORY SHEETS OF IRREGULAR OUTLINE WITH A CONTINUOUS FILM CONTAINING METAL OXIDE BY HEATING A SHEET TO AN ELEVATED TEMPERATURE ABOVE 400*F. AND BELOW THE TEMPERATURE AT WHICH THE SHEET BECOMES MOLTEN AND SPRAYING A DISPERSION OF A HYDROLYZABLE METAL COMPOUND ONTO A SURFACE OF THE HEATED SHEET WHILE PROVIDING RELATIVE MOVEMENT BETWEEN THE SHEET AND THE SPRAY WHICH COMPRISES APPLYING A PLURALITY OF DISCRETE, SPRAYS OF METAL OXIDE FILM FORMING MATERIAL ALONG DIVERGENT AXES TO INTERSECT LOCALIZED PORTIONS OF THE SHEET SURFACE TO BE COATED ALONG PARALLEL PATHS OF RELATIVE MOVEMENT, THE PARALLEL PATHS OF INTERSECTION COMBINING TO COVER THE ENTIRE SHEET AFTER THE DIFFERENT PORTIONS OF THE SHEET HAVE BEEN EXPOSED TO THE DIVERGENT SPRAYS FROM EDGE TO EDGE ALONG THE PATHS OF RELATIVE MOVEMENT, EACH SPRAY INTERSECTING A PORTION OF THE SURFACE OF SAID HEATED SHEET WITHOUT INTERMINGLING WITH ANOTHER SPRAY PRIOR TO CONTACTING SAID SURFACE.
References Cited (Backward Citations)
US2557983A
Cited
US2698261A
Cited
US2724658A
Cited
US2839425A
Cited
US2703767A
Cited
GB728887A
Cited
US2811130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |