US4551161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic wetting of glass batch
Assignee: PPG Industries Ohio Inc
•
Filing: 1984-06-27
•
Granted: 1985-11-05
•
Expires: 2004-06-27
Abstract
Abstract Energy savings are attained by employing an organic liquid such as fuel oil as a glass batch wetting agent. Also, inclusion of fuel oil in a sulfur-containing glass batch yields improved melting rates.
Inventors
- 👤 Edward P. Savolskis
- 👤 John F. Krumwiede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:07
CPC Classifications
C; C03; C03C; C03C1/00; C03C1/02; C03C1/026
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
71 words
A method of melting glass wherein finely divided glass batch materials are wetted with a liquid in sufficient amount to regard dusting of the batch and then fed while in a wetted condition to a melting furnace where the batch is heated until the batch materials become molten, the improvement comprising wetting the batch prior to being fed to the melting furnace with a wetting agent comprised of an organic liquid.
Claim 2
Independent Claim
71 words
A method of melting glass wherein finely divided glass batch materials are wetted with a liquid in sufficient amount to regard dusting of the batch and then fed while in a wetted condition to a melting furnace where the batch is heated until the batch materials become molten, the improvement comprising wetting the batch prior to being fed to the melting furnace with a wetting agent comprised of an organic liquid.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein the batch is wetted with a wetting agent additionally comprising water.
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein the organic liquid is provided in an amount less than 3% by weight of the batch.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein the organic liquid is a hydrocarbon.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein the organic liquid is fuel oil.
Claim 7
Dependent Claim
16 words
The method of claim 1 wherein the wetting agent further includes an aqueous caustic soda solution.
Claim 8
Dependent Claim
16 words
The method of claim 1 wherein the wetting agent consists essentially of water and fuel oil.
Claim 9
Dependent Claim
23 words
The method of claim 7 wherein the fuel oil is provided in an amount no greater than 2% by weight of the batch.
Claim 10
Dependent Claim
20 words
The method of claim 1 wherein the wetting agent consists essentially of fuel oil and an aqueous caustic soda solution.
Claim 11
Dependent Claim
23 words
The method of claim 9 wherein the fuel oil is provided in an amount no greater than 2% by weight of the batch.
Claim 12
Dependent Claim
12 words
The method of claim 1 wherein the batch includes a sulfur-containing material.
Claim 13
Dependent Claim
12 words
The method of claim 11 wherein the sulfur-containing material comprises salt cake.
Claim 14
Dependent Claim
14 words
The method of claim 12 wherein the batch is a flat glass batch mixture.
Claim 15
Independent Claim
80 words
A method of melting glass wherein a finely divided glass batch mixture including a sulfur source material and a carbon source material are fed to a melting furnace where the batch is heated to render it to a molten state, the improvement comprising: providing at least a portion of the carbon source material in the batch as an organic liquid that assists in maintaining the batch mixture in a wetted condition as it is being fed to the melting furnace.
Claim 16
Independent Claim
80 words
A method of melting glass wherein a finely divided glass batch mixture including a sulfur source material and a carbon source material are fed to a melting furnace where the batch is heated to render it to a molten state, the improvement comprising: providing at least a portion of the carbon source material in the batch as an organic liquid that assists in maintaining the batch mixture in a wetted condition as it is being fed to the melting furnace.
Claim 17
Dependent Claim
12 words
The method of claim 14 wherein the organic liquid is a hydrocarbon.
Claim 18
Dependent Claim
12 words
The method of claim 14 wherein the organic liquid is fuel oil.
Claim 19
Dependent Claim
13 words
The method of claim 14 wherein the sulfur source material is salt cake.
Claim 20
Dependent Claim
23 words
The method of claim 16 wherein the fuel oil is provided in an amount no greater than 2% by weight of the batch.
Claim 21
Dependent Claim
14 words
The method of claim 14 wherein the batch is a flat glass batch mixture.
Claim 22
Dependent Claim
40 words
The method of claim 14 wherein the batch is wetted with a liquid agent comprised of water and the organic liquid prior to being fed to the furnace, the liquid agent comprising 2% to 8% by weight of the batch.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |