Patent US2845504A successfully refreshed from Google Patents.
US3073531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry diffusing machine
Assignee: Coors Porcelain Co
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Filing: 1961-09-28
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Granted: 1963-01-15
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Expires: 1981-09-28
Abstract
No abstract record available.
Inventors
- 👤 Kothe Ewald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:29
CPC Classifications
B; B28; B28C; B28C1/00; B28C1/02; B28C1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A TOP DRIVE SLURRY DIFFUSING MACHINE COMPRISING (A) A VERTICAL ROTATED SHAFT, (B) A SLURRY DIFFUSING MEMBER FIXED ON THE LOWER END OF THE SHAFT AND ROTATED THEREWITH, (C) AN OUTER VERTICAL HOUSING SURROUNDING AND SPACED FROM THE SHAFT, (D) MEANS CONCENTRIC WITH THE SHAFT DEFINING AN ANNULAR SLURRY PASSAGEWAY WITHIN THE TUBULAR HOUSING, (E) MEANS DEFINING AN ANNULAR WATER PASSAGEWAY WITHIN THE TUBULAR HOUSING BETWEEN THE SHAFT AND THE SLURRY PASSAGEWAY FOR SIMULTANEOUSLY LUBRICATING THE SHAFT AND COOLING THE SLURRY, (F) A SLURRY FEED VALVE COMPRISING A VALVE MEMBER ON THE LOWER END OF THE TUBULAR HOUSING AND A PLUG LOCATED BETWEEN THE VERTICAL SHAFT AND SAID MEMBER (G) MEANS MOVING ONE OF SAID VALVE MEMBER AND VALVE PLUG RELATIVELY TO THE OTHER, (H) A SLURRY INLET IN THE TUBULAR HOUSING COMMUNICATING WITH SAID ANNULAR SLURRY PASSAGEWAY, AND (I) MEANS ON THE VALVE PLUG UNIFORMLY DISPERSING THE SLURRY THROUGH THE VALVE TO THE DIFFUSING MEMBER.
Claim 2
Dependent Claim
156 words
A TOP DRIVE SLURRY DIFFUSING MACHINE COMPRISING (A) A VERTICAL ROTATED SHAFT, (B) A SLURRY DIFFUSING MEMBER FIXED ON THE LOWER END OF THE SHAFT AND ROTATED THEREWITH, (C) AN OUTER VERTICAL HOUSING SURROUNDING AND SPACED FROM THE SHAFT, (D) MEANS CONCENTRIC WITH THE SHAFT DEFINING AN ANNULAR SLURRY PASSAGEWAY WITHIN THE TUBULAR HOUSING, (E) MEANS DEFINING AN ANNULAR WATER PASSAGEWAY WITHIN THE TUBULAR HOUSING BETWEEN THE SHAFT AND THE SLURRY PASSAGEWAY FOR SIMULTANEOUSLY LUBRICATING THE SHAFT AND COOLING THE SLURRY, (F) A SLURRY FEED VALVE COMPRISING A VALVE MEMBER ON THE LOWER END OF THE TUBULAR HOUSING AND A PLUG LOCATED BETWEEN THE VERTICAL SHAFT AND SAID MEMBER (G) MEANS MOVING ONE OF SAID VALVE MEMBER AND VALVE PLUG RELATIVELY TO THE OTHER, (H) A SLURRY INLET IN THE TUBULAR HOUSING COMMUNICATING WITH SAID ANNULAR SLURRY PASSAGEWAY, AND (I) MEANS ON THE VALVE PLUG UNIFORMLY DISPERSING THE SLURRY THROUGH THE VALVE TO THE DIFFUSING 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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |