Patent US3736977A successfully refreshed from Google Patents.
US3736977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting butt joints of plate molds for continuous casting
Assignee: SMS Concast AG
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Filing: 1971-03-24
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Granted: 1973-06-05
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Expires: 1991-03-24
Abstract
Abstract In a plate mold for continuous casting the gaps which may be formed at the butt joints between the longitudinal and transverse mold walls due to thermal expansion are sealed by covering the joints and the areas of the mold walls immediately adjacent the joints with a thin layer of protective material.
Inventors
- 👤 W Stockinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:30
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/04; B22D11/05
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
The method of protecting a butt joint of a plate mold having longitudinal and transverse abutting mold plates used for continuous casting which comprises covering the joint before beginning the pouring of metal into the mold with a layer of protective material having a thickness not substantially in excess of that of a metal foil, said layer extending lengthwise of the joint and covering the joint and extending laterally over an area of the surface of each abutting mold plate immediately adjacent the joint.
Claim 2
Independent Claim
84 words
The method of protecting a butt joint of a plate mold having longitudinal and transverse abutting mold plates used for continuous casting which comprises covering the joint before beginning the pouring of metal into the mold with a layer of protective material having a thickness not substantially in excess of that of a metal foil, said layer extending lengthwise of the joint and covering the joint and extending laterally over an area of the surface of each abutting mold plate immediately adjacent the joint.
Claim 3
Dependent Claim
29 words
The method of claim 1 in which the joint is covered by an adhesive tape which adheres to the surface of each abutting mold plate immediately adjacent the joint.
Claim 4
Dependent Claim
26 words
The method of claim 2 in which the adhesive tape burns or melts away in the regions covered by molten metal as the mold is filled.
Claim 5
Dependent Claim
15 words
The method of claim 2 in which the adhesive tape consist of a high-melting-point alloy.
Claim 6
Dependent Claim
26 words
The method of claim 1 in which the joint is covered by a liquid material having a surface tension sufficient to prevent penetration into the joint.
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |