US3366338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segment-type grinding ring
Assignee: Foster Wheeler Inc
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Filing: 1965-12-07
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Granted: 1968-01-30
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Expires: 1985-12-07
Abstract
No abstract record available.
Inventors
- 👤 Francis M Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:57
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/003; B02C15/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A GRINDING MILL COMPRISING A MILL TABLE INCLUDING AN UPPER SURFACE AND AN ANNULAR SHAPED SEAT ARRANGED THEREIN; A PLURALITY OF SIDE-BY-SIDE SEGMENTS DEFINING A GRINDING RACE DISPOSED IN THE SEAT; THE SEGMENTS AND TABLE SEAT INCLUDING COMPLEMENTARY INSIDE EDGES ADJACENT THE TABLE AXIS ANGLED UPWARDLY AND INWARDLY TO PERMIT UPWARD WITHDRAWAL OF THE SEGMENTS FROM THE TABLE SEAT AND COMPLEMENTARY OUTER EDGES SIMILARLY ANGLED WITH THE SEAT EDGE OVERHANGING THE SEGMENT EDGES TO RESTRICT WITHDRAWAL, THE SEAT ANGLED EDGES BEING FURTHER APART THAN THE SEGMENT ANGLED EDGES TO PERMIT RADIAL MOVEMENT OF THE SEGMENTS IN THE SEAT; WEDGE BLOCK MEANS REMOVABLY SECURED TO THE TABLE ADJACENT THE INNER EDGES THEREOF ADAPTED TO FORCE THE SEGMENTS DURING NORMAL OPERATION RADIALLY OUTWARD AGAINST THE SEAT OUTER EDGE; THE TABLE FURTHER INCLUDING AT LEAST ONE REMOVABLE PLATE MEMBER SECURED TO THE TABLE DEFINING A PORTION OF THE SEAT OUTER EDGE COEXTENSIVE WITH AT LEAST ONE SEGMENT TO PERMIT RADIAL REMOVAL OF THE SEGMENT ON REMOVAL OF THE PLATE.
Claim 2
Dependent Claim
166 words
A GRINDING MILL COMPRISING A MILL TABLE INCLUDING AN UPPER SURFACE AND AN ANNULAR SHAPED SEAT ARRANGED THEREIN; A PLURALITY OF SIDE-BY-SIDE SEGMENTS DEFINING A GRINDING RACE DISPOSED IN THE SEAT; THE SEGMENTS AND TABLE SEAT INCLUDING COMPLEMENTARY INSIDE EDGES ADJACENT THE TABLE AXIS ANGLED UPWARDLY AND INWARDLY TO PERMIT UPWARD WITHDRAWAL OF THE SEGMENTS FROM THE TABLE SEAT AND COMPLEMENTARY OUTER EDGES SIMILARLY ANGLED WITH THE SEAT EDGE OVERHANGING THE SEGMENT EDGES TO RESTRICT WITHDRAWAL, THE SEAT ANGLED EDGES BEING FURTHER APART THAN THE SEGMENT ANGLED EDGES TO PERMIT RADIAL MOVEMENT OF THE SEGMENTS IN THE SEAT; WEDGE BLOCK MEANS REMOVABLY SECURED TO THE TABLE ADJACENT THE INNER EDGES THEREOF ADAPTED TO FORCE THE SEGMENTS DURING NORMAL OPERATION RADIALLY OUTWARD AGAINST THE SEAT OUTER EDGE; THE TABLE FURTHER INCLUDING AT LEAST ONE REMOVABLE PLATE MEMBER SECURED TO THE TABLE DEFINING A PORTION OF THE SEAT OUTER EDGE COEXTENSIVE WITH AT LEAST ONE SEGMENT TO PERMIT RADIAL REMOVAL OF THE SEGMENT ON REMOVAL OF THE PLATE.
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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |