US3894577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for withdrawing castings from mould of continuous metal casting machine
Assignee: Individual
•
Filing: 1974-05-07
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Granted: 1975-07-15
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Expires: 1994-05-07
Abstract
Abstract A device for withdrawing a casting from a mold in a continuous metal casting machine comprising an appliance which represents arms adapted to grip the casting. The arms are articulated on carriages and are disposed at an acute angle to the longitudinal axis of the casting in the direction of its withdrawal. The carriages are aligned axially with one another and with the longitudinal axis of the casting. They traverse in opposite, relative to each other, directions along the screws having a thread directed in opposite sides along the screw length and provided with a reversing drive.
Inventors
- 👤 Boris Fedorovich Milyaev
- 👤 Zakhar Alexeevich Ozeshnikov
- 👤 Nikolai Maximovich Tuchkevich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:13
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/128; B22D11/1284
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
A device for withdrawing a casting from a mold of a continuous metal casting machine comprising: a frame; screws mounted on said frame on opposite sides of the path of said casting, eaah of said screws having oppositely threaded portions running along its length to provide opposed reciprocating motion of carriages mounted thereon; said carriages being aligned axially with one another and with the longitudinal axis of the casting; an arm mounted on each carriage for gripping the casting, said arm being disposed at an acute angle relative to the longitudinal axis of the casting in the direction of its withdrawal and articulated on said carriages; and a reversing drive system linked mechanically with said screws.
Claim 2
Independent Claim
116 words
A device for withdrawing a casting from a mold of a continuous metal casting machine comprising: a frame; screws mounted on said frame on opposite sides of the path of said casting, eaah of said screws having oppositely threaded portions running along its length to provide opposed reciprocating motion of carriages mounted thereon; said carriages being aligned axially with one another and with the longitudinal axis of the casting; an arm mounted on each carriage for gripping the casting, said arm being disposed at an acute angle relative to the longitudinal axis of the casting in the direction of its withdrawal and articulated on said carriages; and a reversing drive system linked mechanically with said screws.
Claim 3
Dependent Claim
39 words
A device as claimed in claim 1, wherein each said arm is made with a loose end and provision is made for elastic members, each of them serving for connecting the loose end of the arm to said carriage.
Claim 4
Dependent Claim
104 words
A device as claimed in claim 2 further comprising a pipe having longitudinal through slots, one end of said pipe being connected to said mold and the other end mounting a cover provided with a hole for the passage of a dummy bar fastened thereto; said carriages being attached to said pipe and overlapping its slots into which enter said arms fastened to said carriages and interacting at first with the dummy bar and then with the casting; and packing adapted to seal said pipe interior and located in joints between said pipe and said mold, carriage, cover and rods of the elastic members.
References Cited (Backward Citations)
US1444953A
Cited
US1088171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |