Patent US3650781A successfully refreshed from Google Patents.
US3650781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silica-cadmia glass batches for producing low-to-medium expansion glasses
Assignee: OI Glass Inc
•
Filing: 1969-08-28
•
Granted: 1972-03-21
•
Expires: 1989-08-28
Abstract
Abstract Glass batch compositions for producing glasses having linear coefficients of thermal expansion in the range of from about 10 X 10 7 to about 20 X 10 7 in./in./* C. and which batch compositions are composed of finely divided batch materials consisting essentially of from 70-90 mole percent SiO2, up 1 to 15 mole percent CdO, and the balance of such Composition, if any, being finely divided batch materials composed essentially of one or more oxides selected from the group consisting of Al2O3, TiO2, B2O3, CuO, MnO, ZnO, ZrO2, Sb2O3, AlF3 and P2O5.
Inventors
- 👤 Nils Tryggve E A Baak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:55
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/089; C03C3/091; C03C3/083; C03C3/085; C03C3/097; C03C3/11; C03C3/112
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and B2O3 are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 82.0 CdO 1.0 Al2O3 6.5 TiO2 6.0 B2O3 4.5
Claim 2
Dependent Claim
38 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and AlF3 are present in said composition in about the following mole percents: ConstituentMole PercentSiO2 73.9 CdO 8.7 Al2O3 4.3TiO2 4.3 AlF3 8.7
Claim 3
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and B2O3 are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 80.0 CdO 3.0 Al2O3 6.5 TiO2 6.0 B2O3 4.5.
Claim 4
Dependent Claim
37 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3 and TiO2 are present in said composition in about the following mole percents: Constituent Mole PercentSiO2 75.0 CdO 9.1 Al2O3 9.1 TiO2 6.8
Claim 5
Dependent Claim
37 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3 and TiO2 are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 72.7CdO 9.1 Al2O3 9.1 TiO2 9.1
Claim 6
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and CuO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 4.5 Al2O3 9.1 TiO2 4.5 CuO 4.5
Claim 7
Dependent Claim
47 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and ZnO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 2.3 - 6.9 Al2O3 9.1 TiO2 4.4 - 4.5 ZnO 2.3 - 6.8
Claim 8
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and ZnO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 2.3 Al2O3 9.1 TiO2 4.5 Zno 6.8
Claim 9
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and ZnO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 6.9 Al2O3 9.1 TiO2 4.4 ZnO 2.3
Claim 10
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and ZnO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 4.5 Al2O3 9.1 TiO2 4.5 ZnO 4.5
Claim 11
Dependent Claim
45 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and MnO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 4.5 - 6.8 Al2O3 9.1 TiO2 4.5 MnO 2.3 - 4.5
Claim 12
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and MnO are present in sAid composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 4.5 Al2O3 9.1 TiO2 4.5 MnO 4.5
Claim 13
Dependent Claim
41 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3, TiO2 and MnO are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 6.8 Al2O3 9.1 TiO2 4.5 MnO 2.3
Claim 14
Dependent Claim
46 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3 and TiO2 are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 - 85.7 CdO 4.8 - 9.1 Al2O3 4.8 - 9.1 TiO2 4.5 - 4.8
Claim 15
Dependent Claim
36 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3 and TiO2 are present in said composition in about the following mole percents: ConstituentMole PercentSiO2 77.3 CdO 9.1 Al2O3 9.1 TiO2 4.5
Claim 16
Dependent Claim
38 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, Al2O3 and TiO2 are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 85.7 CdO 4.8 Al2O3 4.8 TiO2 4.8
Claim 17
Dependent Claim
39 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, ZrO2, Al2O3 and Sb2O3 are present in said composition in about the following mole percents: Constituent Mole SiO2 77.3CdO 9.1 ZrO2 4.5 Al2O3 4.5 Sb2O3 4.5
Claim 18
Dependent Claim
33 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO and Al2O3 are present in said composition in about the following mole percents: ConstituentMole PercentSiO2 81.8 CdO 9.1 Al2O3 9.1
Claim 19
Dependent Claim
38 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, B2O3 and AlF3 are present in said composition in about the following mole percents: Constituent Mole Percent SiO2 77.3 CdO 9.1 B2O3 4.3 AlF3 9.1
Claim 20
Dependent Claim
35 words
A glass batch composition, as defined in claim 1, wherein said SiO2, CdO, TiO2 and AlF3 are present in said composition in about the following mole percents: Constituent Mole PercentSiO2 70.8 CdO 8.3TiO2 4.2AlF3 16.7
Claim 21
Dependent Claim
116 words
A glass batch composition for producing a glass having a linear coefficient of thermal expansion within the range of from about 10 X 10 7 to 20 X 10 7 in./in./* C. over the range of from O*-300* C., said glass batch composition being capable of being melted at 1,600* C. and having a composition consisting essentially of 70 to 90 mole percent SiO2, from 1 to 15.0 mole percent CdO, and the remaining balance of said glass batch composition consisting essentially of the following constituents in the indicated ranges of mole percents: Constituents Mole Percent TiO2 5-10 B2O3 0-4.5 ZrO2 0-4.5 Al2O3 3-10 AlF3 0-16.7 AlPO4 0-10.0 CuO 0-4.5 ZnO 0-6.8 MnO 0-4.5 Sb2O3 0-4.5
Claim 22
Dependent Claim
114 words
A glass batch composition for producing a glass having a linear coefficient of thermal expansion within the range of from about 10 X 10 7 to 20 X 10 7 in./in./* C. over the range of from 0*-300* C., said glass batch composition being capable of being melted at 1,600* C., and having a composition consisting essentially of 70 to 90 mole percent SiO2, 1 to 15 mole percent CdO and the remaining balance of the glass batch composition consisting of the following constituents in the indicated range of mole percent: Constituents Mole Percent TiO2 5-10 Al2O3 3-10 B2O3 0-10 CuO 0-10 MnO 0-10 ZnO 0-10 ZrO2 0-5 Sb2O3 0-5 AlF3 0-18 P2O5 0-5
Claim 23
Dependent Claim
79 words
A glass batch composition for producing a glass as defined in claim 28 wherein said glass batch composition consists essentially of 70 to 90 mole percent SiO2, from 3.0 to 10.0 mole percent CdO and the remaining balance of said glass batch composition consists essentially of the following constituents in the indicated ranges of mole percent: Constituents Mole Percent Al2O3 5-10 TiO2 5-10 B2O3 4-5 ZrO2 0-5 AlF3 0-18 CuO 0-10 ZnO 0-10 MnO 0-10 Sb2O3 0-5 P2O5 0-5
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |