US3295773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crusher
Assignee: MISSOURI ROGERS CORP
•
Filing: 1965-06-30
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Granted: 1967-01-03
•
Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Virgil H Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:28
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/02; B02C13/06; B02C13/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A ROCK CRUSHER HAVING A ROTATABLY MOUNTED ROTOR, UNITARY IMPACT HAMMERS DISPOSED IN SLOTS EXTENDING LENGTHWISE ACROSS THE PERIPHERY OF THE ROTOR, AND WEDGING MEANS LEADING SAID HAMMERS AND ADAPTED TO LOCK THEM IN PLACE, THE IMPROVEMENT RESIDING IN SAID SLOT HAVING A SUBSTANTIALLY DOVE-TAIL CROSS SECTION, THE PORTION OF SAID HAMMER WITHIN SAID SLOT CONFORMING TO THE REAR TAPERED WALL OF SAID DOVE-TAIL, THE WEDGING MEANS CONFORMING TO THE FRONT TAPERED WALL OF SAID SLOT AND DISPOSED COMPLETELY WITHIN SAID SLOT, AND MEANS FOR DRAWING SAID WEDGING MEANS AXIALLY INWARDLY FROM THE END OF THE ROTOR TOWARD ONE ANOTHER TO URGE THE HAMMER TIGHTLY AGAINST THE REAR TAPERED WALL AND TO LOCK THE HAMMER WITHIN THE SLOT.
Claim 2
Dependent Claim
119 words
IN A ROCK CRUSHER HAVING A ROTATABLY MOUNTED ROTOR, UNITARY IMPACT HAMMERS DISPOSED IN SLOTS EXTENDING LENGTHWISE ACROSS THE PERIPHERY OF THE ROTOR, AND WEDGING MEANS LEADING SAID HAMMERS AND ADAPTED TO LOCK THEM IN PLACE, THE IMPROVEMENT RESIDING IN SAID SLOT HAVING A SUBSTANTIALLY DOVE-TAIL CROSS SECTION, THE PORTION OF SAID HAMMER WITHIN SAID SLOT CONFORMING TO THE REAR TAPERED WALL OF SAID DOVE-TAIL, THE WEDGING MEANS CONFORMING TO THE FRONT TAPERED WALL OF SAID SLOT AND DISPOSED COMPLETELY WITHIN SAID SLOT, AND MEANS FOR DRAWING SAID WEDGING MEANS AXIALLY INWARDLY FROM THE END OF THE ROTOR TOWARD ONE ANOTHER TO URGE THE HAMMER TIGHTLY AGAINST THE REAR TAPERED WALL AND TO LOCK THE HAMMER WITHIN THE SLOT.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |