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US3235078A
Expired / Lapsed
US
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Oscillating limestone shaker
Assignee: Individual
•
Filing: 1961-05-19
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Granted: 1966-02-15
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Daniel T Hostetler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:50
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/005; B07B13/00; B07B13/14; B07B13/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
THE METHOD OF CLEANING LIMESTONE OR THE LIKE WHICH METHOD COMPRISES: (A) DEPOSITING A QUANTITY OF MATERIAL TO BE CLEANED AND GRADED ON AN OSCILLATING GRIZZLY; (B) ALLOWING PIECES OF THE MATERIAL OF LESS THAN A PREDETERMINED SIZE TO PASS THROUGH SLOTS IN THE GRIZZLY ONTO A SCREEN; (C) COLLECTING THE SMALLER PIECES ON THE SCREEN WHILE SHAKING THE SCREEN TO ALLOW CLAY AND CONTAMINANTS TO PASS THERETHROUGH AND SIMULTANEOUSLY TRANSPORT THE COLLECTED SMALLER PIECES TO AN OUTLET END OF THE SCREEN; (D) MAINTAINING ALL PIECES OF A SIZE LARGER THAN THE PREDETERMINED SIZE IN A COCKED POSITIONED ON THE GRIZZLY WHILE OSCILLATING THE GRIZZLY TO SLIDE AND SHAKE SUCH LARGER PIECES TO SEPARATE OTHER MATERIALS FROM SUCH PIECES LARGER THAN SAID PREDETERMINED SIZE WITHOUT TUMBLING SAID LARGER PIECES WHILE SIMULTANEOUSLY TRANSPORTING SAID LARGER SIZE PIECES TO AN OUTLET END OF THE GRIZZLY; AND, (E) COLLECTING THE PIECE OUTPUT OF THE SCREEN AND GRIZZLY.
Claim 2
Independent Claim
154 words
THE METHOD OF CLEANING LIMESTONE OR THE LIKE WHICH METHOD COMPRISES: (A) DEPOSITING A QUANTITY OF MATERIAL TO BE CLEANED AND GRADED ON AN OSCILLATING GRIZZLY; (B) ALLOWING PIECES OF THE MATERIAL OF LESS THAN A PREDETERMINED SIZE TO PASS THROUGH SLOTS IN THE GRIZZLY ONTO A SCREEN; (C) COLLECTING THE SMALLER PIECES ON THE SCREEN WHILE SHAKING THE SCREEN TO ALLOW CLAY AND CONTAMINANTS TO PASS THERETHROUGH AND SIMULTANEOUSLY TRANSPORT THE COLLECTED SMALLER PIECES TO AN OUTLET END OF THE SCREEN; (D) MAINTAINING ALL PIECES OF A SIZE LARGER THAN THE PREDETERMINED SIZE IN A COCKED POSITIONED ON THE GRIZZLY WHILE OSCILLATING THE GRIZZLY TO SLIDE AND SHAKE SUCH LARGER PIECES TO SEPARATE OTHER MATERIALS FROM SUCH PIECES LARGER THAN SAID PREDETERMINED SIZE WITHOUT TUMBLING SAID LARGER PIECES WHILE SIMULTANEOUSLY TRANSPORTING SAID LARGER SIZE PIECES TO AN OUTLET END OF THE GRIZZLY; AND, (E) COLLECTING THE PIECE OUTPUT OF THE SCREEN AND GRIZZLY.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |