US3295945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective salt bath for a glass ribbon
Assignee: AGC Glass Europe SA
•
Filing: 1966-06-29
•
Granted: 1967-01-03
•
Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Plumat Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:27
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A SALT BATH FOR SUPPORTING A GLASS RIBBON IN THE PLASTIC STATE, SAID BATH COMPRISING CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS AND CHLORIDES OF METALS WHICH DO NOT SUBSTANTIALLY DIFFUSE INTO THE GLASS, THE CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS INCLUDING BOTH ON THE ONE HAND CHLORIDES OF METALS WHICH INCREASE THE COEFFICIENT OF EXPANSION OF THE GLASS WHEN THEY DIFFUSE INTO THE GLASS WITH SUBSTITUTION, AND ON THE OTHER HAND CHLORIDES OF METALS WHICH REDUCE THE COEFFICIENT OF EXPANSION OF THE GLASS WHEN THEY DIFFUSE INTO THE GLASS WITH SUBSTITUTION, SAID CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS BEING RESPECTIVELY PRESENT IN SAID BATH, IN A PROPORTION, SUCH THAT DIFFUSION INTO THE GLASS OF THE CATIONS OF SUCH DIFFUSING METALS AND THE SUBSTITUTION OF SUCH CATIONS FOR CONSTITUENT METAL CATIONS OF THE GLASS ARE ACCOMPANIED BY LITTLE CHANGE IN THE GLASS VOLUME AND IN THE COEFFICIENT OF EXPANSION OF THE GLASS.
Claim 2
Dependent Claim
157 words
A SALT BATH FOR SUPPORTING A GLASS RIBBON IN THE PLASTIC STATE, SAID BATH COMPRISING CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS AND CHLORIDES OF METALS WHICH DO NOT SUBSTANTIALLY DIFFUSE INTO THE GLASS, THE CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS INCLUDING BOTH ON THE ONE HAND CHLORIDES OF METALS WHICH INCREASE THE COEFFICIENT OF EXPANSION OF THE GLASS WHEN THEY DIFFUSE INTO THE GLASS WITH SUBSTITUTION, AND ON THE OTHER HAND CHLORIDES OF METALS WHICH REDUCE THE COEFFICIENT OF EXPANSION OF THE GLASS WHEN THEY DIFFUSE INTO THE GLASS WITH SUBSTITUTION, SAID CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS BEING RESPECTIVELY PRESENT IN SAID BATH, IN A PROPORTION, SUCH THAT DIFFUSION INTO THE GLASS OF THE CATIONS OF SUCH DIFFUSING METALS AND THE SUBSTITUTION OF SUCH CATIONS FOR CONSTITUENT METAL CATIONS OF THE GLASS ARE ACCOMPANIED BY LITTLE CHANGE IN THE GLASS VOLUME AND IN THE COEFFICIENT OF EXPANSION OF THE GLASS.
Claim 3
Dependent Claim
124 words
IN A METHOD IN WHICH A GLASS RIBBON IS FLOATED ON A BATH, AN IMPROVEMENT COMPRISING FORMING THE BATH OF CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS AND OF CHLORIDES OF METALS WHICH DO NOT DIFFUSE INTO A GLASS, SAID GLASS RIBBON NORMALLY UNDERGOING IONIC EXCHANGE OF A METAL THEREOF WITH METALS OF THE BATH WHICH DIFFUSE INTO THE GLASS WHEREBY RESIDUAL STRESS EFFECTS IN THE GLASS ARE PRODUCED, THE BATH INCLUDING CHLORIDES OF THESE LAST METALS HAVING OPPOSED EFFECTS ON THE VOLUME AND ON THE COEFFICIENT OF EXPANSION OF THE GLASS, THE LATTER CHLORIDES BEING PRESENT IN SPECIFIC QUANTITIES TO COUNTERBALANCE THE RESIDUAL STRESS EFFECTS CAUSED BY THE IONIC EXCHANGE OF THE METALS OF SAID CHLORIDES WITH THE METAL OF THE GLASS.
Claim 4
Dependent Claim
124 words
IN A METHOD IN WHICH A GLASS RIBBON IS FLOATED ON A BATH, AN IMPROVEMENT COMPRISING FORMING THE BATH OF CHLORIDES OF METALS WHICH DIFFUSE INTO THE GLASS AND OF CHLORIDES OF METALS WHICH DO NOT DIFFUSE INTO A GLASS, SAID GLASS RIBBON NORMALLY UNDERGOING IONIC EXCHANGE OF A METAL THEREOF WITH METALS OF THE BATH WHICH DIFFUSE INTO THE GLASS WHEREBY RESIDUAL STRESS EFFECTS IN THE GLASS ARE PRODUCED, THE BATH INCLUDING CHLORIDES OF THESE LAST METALS HAVING OPPOSED EFFECTS ON THE VOLUME AND ON THE COEFFICIENT OF EXPANSION OF THE GLASS, THE LATTER CHLORIDES BEING PRESENT IN SPECIFIC QUANTITIES TO COUNTERBALANCE THE RESIDUAL STRESS EFFECTS CAUSED BY THE IONIC EXCHANGE OF THE METALS OF SAID CHLORIDES WITH THE METAL OF THE GLASS.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |