US3221559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Immersion sampler
Assignee: Harbison Walker Refractories Co
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Filing: 1963-09-16
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Granted: 1965-12-07
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Eldon D Miller
- 👤 Robert K Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:16
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N1/125
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
162 words
AN IMMERSION SAMPLER SUITABLE FOR OBTAINING SAMPLES OF MOLTEN METAL FROM A SLAG COVERED MOLTEN METAL BATH, COMPRISING A HOLLOW REFRACTORY CLYINDRICAL MEMBER HAVING COMMUNICATING UPPER AND LOWER OPENINGS, THE UPPER OPENING ENLARGING SUBSTANTIALLY IN CROSS-SECTION A SHORT DISTANCE FROM THE UPPER END INTO THE LOWER OPENING, THERE BEING AN INTERIOR LONGITUDINALLY DISPOSED SURFACE ADJACENT THE UPPER OPENING, WHERE SAID UPPER OPENING ENLARGES, A METAL MEMBER HAVING AN UPPER CUP-LIKE CAVITY DISPOSED WITHIN THE LOWER OPENING AND HAVING A SURFACE PORTION IN CONTIGUOUS CONTACT WITH THE LONGITUDINAL SURFACE, THE CAVITY IN THE METAL MEMBER BEING IN COMMUNICATION WITH THE UPPER OPENING, A REFRACTORY PLUG MEMBER DISPOSED IN AND CLOSING THE LOWER OPENINGS, A FACE OF SAID PLUG MEMBER BEING CONTIGUOUS WITH THE CUP-SHAPED MEMBER, AND AN UPPER PLUG MEMBER COMPOSED OF A BURNABLE MATERIAL DISPOSED IN AND CLOSING THE UPPER OPENING, THERE BEING DEOXIDIZING MATERIAL FOR THE MOLTEN METAL CARRIED BY SAID SAMPLER WITHIN THE UPPER OPENING AJDACENT SAID UPPER PLUG MEMBER.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |