US3071358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming clay spheres
Assignee: Selas Corp of America
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Filing: 1962-03-19
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Granted: 1963-01-01
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 Blaha Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
F; F27; F27B; F27B1/00; F27B1/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
APPARATUS FOR FUSING CLAY PARTICLES COMPRISING IN COMBINATION STRUCTURE FORMING A PAIR OF VERTICALLY DISPLACED CHAMBERS HAVING A RESTRICTED PASSAGE BETWEEN THEM, MEANS TO SUPPLY PARTICLES TO THE UPPER CHAMBER TO FALL THERETHROUGH AND THROUGH SAID SECOND CHAMBER, AND MEANS TO CONTROL THE FLOW OF PARTICLES TO SAID SECOND CHAMBER INCLUDING A STOPPER PARTIALLY OBSTRUCTING SAID PASSAGE, A HOLLOW CYLINDRICAL MEMBER HAVING ITS LOWER END CLOSED AND RESTING ON SAID STOPPER, SAID END BEING PROVIDED WITH A RING OF OPENINGS THAT ARE CLOSED BY SAID STOPPER, MEANS TO DIRECT PARTICLES FROM SAID UPPER CHAMBER INTO SAID CYLINDRICAL MEMBER, MEANS TO RAISE AND LOWER SAID CYLINDRICAL MEMBER TO CONTROL THE FLOW OF PARTICLES THROUGH THE OPENINGS IN THE END THEREOF, AND MEANS TO HEAT SAID LOWER CHAMBER TO THE FUSION TEMPERATURE OF THE CLAY PARTICLES.
Claim 2
Dependent Claim
134 words
APPARATUS FOR FUSING CLAY PARTICLES COMPRISING IN COMBINATION STRUCTURE FORMING A PAIR OF VERTICALLY DISPLACED CHAMBERS HAVING A RESTRICTED PASSAGE BETWEEN THEM, MEANS TO SUPPLY PARTICLES TO THE UPPER CHAMBER TO FALL THERETHROUGH AND THROUGH SAID SECOND CHAMBER, AND MEANS TO CONTROL THE FLOW OF PARTICLES TO SAID SECOND CHAMBER INCLUDING A STOPPER PARTIALLY OBSTRUCTING SAID PASSAGE, A HOLLOW CYLINDRICAL MEMBER HAVING ITS LOWER END CLOSED AND RESTING ON SAID STOPPER, SAID END BEING PROVIDED WITH A RING OF OPENINGS THAT ARE CLOSED BY SAID STOPPER, MEANS TO DIRECT PARTICLES FROM SAID UPPER CHAMBER INTO SAID CYLINDRICAL MEMBER, MEANS TO RAISE AND LOWER SAID CYLINDRICAL MEMBER TO CONTROL THE FLOW OF PARTICLES THROUGH THE OPENINGS IN THE END THEREOF, AND MEANS TO HEAT SAID LOWER CHAMBER TO THE FUSION TEMPERATURE OF THE CLAY PARTICLES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |