US3195873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum degassing system
Assignee: JOHN MEHR AND SONS
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Filing: 1961-03-27
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Granted: 1965-07-20
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Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Herbert S Philbrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:14
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/10; F; F27; F27B; F27B5/00; F27B5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A VACUUM TANK FOR USE IN DEGASSING MOLTEN METAL, SAID TANK INCLUDING A FIRST AND SECOND TANK HALF, SAID FIRST AND SECOND HALVES FORMING, BY THEMSELVES, A VACUUM TANK OF A SIZE SUFFICIENT TO RECEIVE A CONTAINER OF MOLTEN METAL, SAID HALVES BEING SUBSTANTIALLY SYMMETRICALLY SHAPED AND OPENING ALONG A PARTING LINE FORMED APPROXIMATELY AT THE MAJOR DIMENSION OF THE TANK, AT LEAST ONE OF SAID TANK HALVES BEING PIVOTABLE ABOUT A GENERALLY HORIZONTAL AXIS INTO SEALING ENGAGEMENT WITH THE OTHER TANK HALF, MEANS SUPPORTING THE TANK WITH ITS PARTING LINE DISPOSED GENERALLY VERTICALLY TO THEREBY FORM AN UPWARDLY, OUTWARDLY DIVERGING OPENING FOR THE RECEPTION OF A CONTAINER FOR MOLTEN METAL WHEN THE TANK HALVES ARE IN AN OPEN POSITION, A
Claim 2
Dependent Claim
121 words
A VACUUM TANK FOR USE IN DEGASSING MOLTEN METAL, SAID TANK INCLUDING A FIRST AND SECOND TANK HALF, SAID FIRST AND SECOND HALVES FORMING, BY THEMSELVES, A VACUUM TANK OF A SIZE SUFFICIENT TO RECEIVE A CONTAINER OF MOLTEN METAL, SAID HALVES BEING SUBSTANTIALLY SYMMETRICALLY SHAPED AND OPENING ALONG A PARTING LINE FORMED APPROXIMATELY AT THE MAJOR DIMENSION OF THE TANK, AT LEAST ONE OF SAID TANK HALVES BEING PIVOTABLE ABOUT A GENERALLY HORIZONTAL AXIS INTO SEALING ENGAGEMENT WITH THE OTHER TANK HALF, MEANS SUPPORTING THE TANK WITH ITS PARTING LINE DISPOSED GENERALLY VERTICALLY TO THEREBY FORM AN UPWARDLY, OUTWARDLY DIVERGING OPENING FOR THE RECEPTION OF A CONTAINER FOR MOLTEN METAL WHEN THE TANK HALVES ARE IN AN OPEN POSITION, A
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |