Patent US3864061A successfully refreshed from Google Patents.
US3864061A
Expired / Lapsed
US
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Arrangement of an electromagnetic pump immersed in a liquid material providing a constant discharge
Assignee: Groupement Atomique Alsacienne Atlantique SA
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Filing: 1973-09-28
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Granted: 1975-02-04
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Expires: 1993-09-28
Abstract
Abstract Two sets of connecting rods pivotably connected at one end on each side of a pump and at their other ends to a vertical arm fixed to the ladle control vertical stability of the pump and its depth of immersion through counterweights adjustably fixed to the outer end of an extended rod by forming an articulated parallelogram.
Inventors
- 👤 Henri Carbonnel
- 👤 Guy Moriaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:50
CPC Classifications
B; B22; B22D; B22D39/00; B22D39/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
154 words
In an arrangement wherein an electromagnetic cylindrical pump is immersed in a ladle of liquid metal and provides a discharge independent of the variations in the level of liquid metal, the improvement comprising: adjustable means for keeping the depth of immersion of the cylindrical pump constant and for simultaneously keeping the pump axis in a vertical position, said adjustable means comprising two sets of connecting rods 4 and 5 of the same length, each set forming an articulated parallelogram, trunnions 6 and 7 fixing two apices of the two parallelograms on a generating line of the cylindrical body of the pump, trunnions 9 and 10 fixing the other two apices respectively of said parallelogram to the liquid metal ladle and wherein one of the connecting rods of each set being extended towards the outside of the ladle by an arm 4'' bearing an adjustable counterweight to enable the depth of immersion to be varied.
Claim 2
Dependent Claim
154 words
In an arrangement wherein an electromagnetic cylindrical pump is immersed in a ladle of liquid metal and provides a discharge independent of the variations in the level of liquid metal, the improvement comprising: adjustable means for keeping the depth of immersion of the cylindrical pump constant and for simultaneously keeping the pump axis in a vertical position, said adjustable means comprising two sets of connecting rods 4 and 5 of the same length, each set forming an articulated parallelogram, trunnions 6 and 7 fixing two apices of the two parallelograms on a generating line of the cylindrical body of the pump, trunnions 9 and 10 fixing the other two apices respectively of said parallelogram to the liquid metal ladle and wherein one of the connecting rods of each set being extended towards the outside of the ladle by an arm 4'' bearing an adjustable counterweight to enable the depth of immersion to be varied.
Claim 3
Dependent Claim
18 words
The arrangement as recited in claim 1, wherein the arms 4'' support a ventilator 11 for said pump.
Claim 4
Dependent Claim
51 words
The arrangement as claimed in claim 1, further comprising a vertical arm 8 fixedly supporting said two trunnions 9 and 10 coupled to supporting rods 4 and 5, said vertical arm including a leg 13 at its base and dismantling means connecting said leg to the edge of the ladle 2.
Claim 5
Dependent Claim
94 words
The arrangement as claimed in claim 1, wherein a metal discharge spout 25 operatively coupled to said pump and means for insuring a fixed position with a base of the metal discharge spout regardless of variations in the level of liquid metal, said pump including an inclined tube extending upwardly within said ladle and terminating in a casting nozzle 21, and wherein said insuring means comprises link arms 22 arranged symmetrically on either side of the spout and pivotably connecting said casting nozzle 21 to the inboard end of said metal discharge spout 25.
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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |