US3741280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mould for the production of metal ingots
Assignee: Individual
•
Filing: 1971-11-03
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Granted: 1973-06-26
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Expires: 1991-11-03
Abstract
Abstract A mould for the production of metal ingots, having a casing, a shield and an inductor congruent in shape with an elongated loop, with the inductor made up of electrically insulated other parts with each part connected to two power supply sources producing in the opposite parts thereof electric currents which are in opposite phase.
Inventors
- 👤 G Safaroy
- 👤 P Bulgakov
- 👤 V Kozheurov
- 👤 L Berezin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/01; B22D11/015; B22D11/06; B22D11/0602; B22D27/00; B22D27/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
A mould for the production of ingots comprising: a casing with a cavity for an ingot and double walls forming a conduit for a coolant, with the wall facing the ingot fitted with a lengthwise coolant outlet slot; a base plate closing the ingot cavity in the said mould casing; a shield fastened on the said ingot facing wall of the casing with a clearance to supply the coolant to the ingot; an inductor secured in the said casing for forming liquid metal into the ingot, said inductor having the shape of an elongated loop formed of a pair of opposed parts which are electrically insulated from each other and are each connected to two power supply sources, producing in the opposite parts electric currents being in counter phase; with the said mould casing and shield congruent in shape with the said inductor.
Claim 2
Dependent Claim
143 words
A mould for the production of ingots comprising: a casing with a cavity for an ingot and double walls forming a conduit for a coolant, with the wall facing the ingot fitted with a lengthwise coolant outlet slot; a base plate closing the ingot cavity in the said mould casing; a shield fastened on the said ingot facing wall of the casing with a clearance to supply the coolant to the ingot; an inductor secured in the said casing for forming liquid metal into the ingot, said inductor having the shape of an elongated loop formed of a pair of opposed parts which are electrically insulated from each other and are each connected to two power supply sources, producing in the opposite parts electric currents being in counter phase; with the said mould casing and shield congruent in shape with the said inductor.
Claim 3
Dependent Claim
53 words
A mould of claim 1 in which a coolant conduit made in a casing is subdivided by cross walls into a number of chambers located in longitudinal and transverse elements of the casing, having the form of an elongated loop, with each chamber fitted with a sleeve to supply into it the coolant.
Claim 4
Dependent Claim
21 words
A mould, of claim 2, in which along each chamber and opposite to a sleeve is set up a damping screen.
Claim 5
Dependent Claim
42 words
A mould of claim 1, in which lengthwise portions of a shield are furnished with oblong holes for casing gluts and cross members of the shield and the casing are separated by expansion gaps to make for thermal expansion of the shield.
Claim 6
Dependent Claim
41 words
A mould of claim 4, in which a casing wall facing the ingot, in the coolant outlet zone, is coated with a layer of selfhardening mixture congruent in shape with an external surface of the shield forming an outlet coolant slot.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |