US3621904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting furnace mold mechanism
Assignee: MARTIN METALS CO
•
Filing: 1970-04-29
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Granted: 1971-11-23
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Expires: 1990-04-29
Abstract
Abstract An apparatus for casting, comprising a mold cradle and crucible pivotably but separately mounted to rotate around an axis and releasable means to back the crucible and mold cradle together for unitary movement around the common axis.
Inventors
- 👤 William A Fahibusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:46
CPC Classifications
B; B22; B22D; B22D18/00; B22D18/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
79 words
An apparatus for casting comprising A. Cradle means for receiving, holding and releasing a mold; B. Pivot means associated with said cradle means to pivot said cradle means about an axis; C. Crucible means for holding a charge of molten metal; D. A second pivot means associated with said crucible means to pivot said crucible means about said axis and E. Releasable means to lock said cradle means and said crucible means together for unitary movement about said axis.
Claim 2
Independent Claim
79 words
An apparatus for casting comprising A. Cradle means for receiving, holding and releasing a mold; B. Pivot means associated with said cradle means to pivot said cradle means about an axis; C. Crucible means for holding a charge of molten metal; D. A second pivot means associated with said crucible means to pivot said crucible means about said axis and E. Releasable means to lock said cradle means and said crucible means together for unitary movement about said axis.
Claim 3
Dependent Claim
13 words
An apparatus as in claim 1 including a vacuum-tight enclosure surrounding said apparatus.
Claim 4
Dependent Claim
16 words
An apparatus as in claim 2 including mold lock means abutting and communicable with said enclosure.
Claim 5
Dependent Claim
18 words
An apparatus as in claim 1 wherein said pivot means and said second pivot means are concentric shafts.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |