Patent US4380604A successfully refreshed from Google Patents.
Patent US3140835A successfully refreshed from Google Patents.
US3140835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowl clamping mechanism for cone crushers
Assignee: Nordberg Manufacturing Co
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Filing: 1961-11-14
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Granted: 1964-07-14
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 Balmer Hansjorg
- 👤 Rudolph J Gasparac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:48
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/02; B02C2/04; B02C2/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A CONE CRUSHER AND THE LIKE, A MAIN FRAME, AN ADJUSTMENT RING ON THE MAIN FRAME, A SPRING RELEASE NORMALLY HOLDING THE ADJUSTMENT RING AGAINST TILTING MOVEMENT RELATIVE THERETO, A BOWL SCREW-THREADED IN THE ADJUSTMENT RING, A LOCKING RING SCREW-THREADED TO THE BOWL ABOVE THE ADJUSTMENT RING, AND AN ANNULAR MEANS ARRANGED GENERALLY IN A CIRCLE BETWEEN THE LOCKING AND ADJUSTMENT RINGS TO PROVIDE AN UPWARD THRUST TO THE LOCKING RING AND BOWL TO REMOVE THREAD CLEARANCE DURING NORMAL OPERATION OF THE CRUSHER.
Claim 2
Dependent Claim
84 words
IN A CONE CRUSHER AND THE LIKE, A MAIN FRAME, AN ADJUSTMENT RING ON THE MAIN FRAME, A SPRING RELEASE NORMALLY HOLDING THE ADJUSTMENT RING AGAINST TILTING MOVEMENT RELATIVE THERETO, A BOWL SCREW-THREADED IN THE ADJUSTMENT RING, A LOCKING RING SCREW-THREADED TO THE BOWL ABOVE THE ADJUSTMENT RING, AND AN ANNULAR MEANS ARRANGED GENERALLY IN A CIRCLE BETWEEN THE LOCKING AND ADJUSTMENT RINGS TO PROVIDE AN UPWARD THRUST TO THE LOCKING RING AND BOWL TO REMOVE THREAD CLEARANCE DURING NORMAL OPERATION OF THE CRUSHER.
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |