Patent US3199157A successfully refreshed from Google Patents.
US3199157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundry system flask unloading apparatus
Assignee: Individual
•
Filing: 1962-08-09
•
Granted: 1965-08-10
•
Expires: 1982-08-09
Abstract
No abstract record available.
Inventors
- 👤 Harrison E Fellows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:34
CPC Classifications
B; B22; B22D; B22D33/00; B22D33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE COMBINATION WITH FIRST AND SECOND CONVEYORS, OF A C-CLAMP HAVING UPPER AND LOWER JAWS AND PROVIDED WITH A FULCRUM UPON WHICH THE CLAMP IS BODILY INVERTIBLE, THE LOWER JAW OF THE C-CLAMP COMPRISING A SECTION OF THE FIRST CONVEYOR, THE UPPER JAW OF THE C-CLAMP COMPRISING MEANS FOR ENGAGING A FLASK AT SPACED POINTS, A SUPPLEMENTAL UPPER JAW ON THE C-CLAMP INDEPENDENTLY RETRACTABLE BETWEEN SAID POINTS AND COMPRISING A CASTING SUPPORT UPON WHICH A CASTING MAY BE LOWERED FROM A FLASH ENGAGED AT SAID POINTS FOLLOWING C-CLAMP INVERSION, THE SECOND CONVEYOR COMPRISING SUPPORTS ADAPTED TO RECEIVE THE INVERTED FLASK FOLLOWING C-CLAMP INVERSION AND BETWEEN WHICH THE SUPPLEMENTAL JAW MAY BE LOWERED TO WITHDRAW THE CASTING FROM A FLASK SO SUPPORTED ON THE SECOND CONVEYOR.
Claim 2
Dependent Claim
125 words
THE COMBINATION WITH FIRST AND SECOND CONVEYORS, OF A C-CLAMP HAVING UPPER AND LOWER JAWS AND PROVIDED WITH A FULCRUM UPON WHICH THE CLAMP IS BODILY INVERTIBLE, THE LOWER JAW OF THE C-CLAMP COMPRISING A SECTION OF THE FIRST CONVEYOR, THE UPPER JAW OF THE C-CLAMP COMPRISING MEANS FOR ENGAGING A FLASK AT SPACED POINTS, A SUPPLEMENTAL UPPER JAW ON THE C-CLAMP INDEPENDENTLY RETRACTABLE BETWEEN SAID POINTS AND COMPRISING A CASTING SUPPORT UPON WHICH A CASTING MAY BE LOWERED FROM A FLASH ENGAGED AT SAID POINTS FOLLOWING C-CLAMP INVERSION, THE SECOND CONVEYOR COMPRISING SUPPORTS ADAPTED TO RECEIVE THE INVERTED FLASK FOLLOWING C-CLAMP INVERSION AND BETWEEN WHICH THE SUPPLEMENTAL JAW MAY BE LOWERED TO WITHDRAW THE CASTING FROM A FLASK SO SUPPORTED ON THE SECOND CONVEYOR.
References Cited (Backward Citations)
US1512721A
Cited
US2695432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |