US3305181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gyratory crushers
Assignee: Babbitless SA
•
Filing: 1963-11-18
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Granted: 1967-02-21
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Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 P Barrot
- 👤 C Lemardeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:21
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/02; B02C2/04; B02C2/047; B02C2/06; B02C2/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A DEVICE FOR CONTROLLING AND ADJUSTING THE OPENING MOTION AND THE RESETTING IN POSITION OF THE CRUSHIN CONE OF A GYRATORY CRUSHER IN CASE A CRUSH-RESISTING PIECE OF MATERIAL PASSES THROUGH THE CRUSHING MEMBERS OF SAID GYRATORY CRUSHER, THE CONE-SUPPORTING SHAFT OF WHICH IS SUPPORTED FROM A HYDRAULIC JACK FED BY A SOURCE OF HYDRAULIC PRESSURE FLUID, SAID DEVICE COMPRISING MEANS RESPONSIVE TO THE PRESSURE OF THE HYDRAULIC FLUID AGAINST THE PISTON OF SAID JACK, A PRESSURE RELIEVING SYSTEM FOR RETURNING HYDRAULIC FLUID TO SAID SOURCE, SAID SYSTEM INCLUDING A DISCHARGE VALVE, MEANS INTEGRAL WITH SAID PRESSURE RESPONSIVE MEANS TO ACTUATE SAID DISCHARGE VALVE WHEN THE FLUID PRESSURE REACHES A PREDETERMINED VALUE, MEANS INDEPENDENT FROM SAID PRESSURE FOR MAINTAINING SAID VALVE IN THE OPEN POSITION THEREOF FOR A PREDETERMINE TIME AFTER THE OPENING THEREOF TO ASSURE THE RELEASE OF A CRUSH-RESISTING PIECE, MEANS FOR FEEDING THE HYDRAULIC FLUID UNDER PRESSURE FROM SAID SOURCE TO THE JACK PISTON, MEANS FOR INITIATING THE OPERATION OF SAID FEEDING MEANS AT THE END OF A PREDETERMINED TIME FROM SAID OPENING POSITION OF SAID DISCHARGE VALVE, AND MEANS FOR INTERRUPTING SAID FEEDING OF THE FLUID AS SOON AS THE CRUSHER CONE HAS BEEN RESTORED TO ITS OPERATING POSITION.
Claim 2
Independent Claim
203 words
A DEVICE FOR CONTROLLING AND ADJUSTING THE OPENING MOTION AND THE RESETTING IN POSITION OF THE CRUSHIN CONE OF A GYRATORY CRUSHER IN CASE A CRUSH-RESISTING PIECE OF MATERIAL PASSES THROUGH THE CRUSHING MEMBERS OF SAID GYRATORY CRUSHER, THE CONE-SUPPORTING SHAFT OF WHICH IS SUPPORTED FROM A HYDRAULIC JACK FED BY A SOURCE OF HYDRAULIC PRESSURE FLUID, SAID DEVICE COMPRISING MEANS RESPONSIVE TO THE PRESSURE OF THE HYDRAULIC FLUID AGAINST THE PISTON OF SAID JACK, A PRESSURE RELIEVING SYSTEM FOR RETURNING HYDRAULIC FLUID TO SAID SOURCE, SAID SYSTEM INCLUDING A DISCHARGE VALVE, MEANS INTEGRAL WITH SAID PRESSURE RESPONSIVE MEANS TO ACTUATE SAID DISCHARGE VALVE WHEN THE FLUID PRESSURE REACHES A PREDETERMINED VALUE, MEANS INDEPENDENT FROM SAID PRESSURE FOR MAINTAINING SAID VALVE IN THE OPEN POSITION THEREOF FOR A PREDETERMINE TIME AFTER THE OPENING THEREOF TO ASSURE THE RELEASE OF A CRUSH-RESISTING PIECE, MEANS FOR FEEDING THE HYDRAULIC FLUID UNDER PRESSURE FROM SAID SOURCE TO THE JACK PISTON, MEANS FOR INITIATING THE OPERATION OF SAID FEEDING MEANS AT THE END OF A PREDETERMINED TIME FROM SAID OPENING POSITION OF SAID DISCHARGE VALVE, AND MEANS FOR INTERRUPTING SAID FEEDING OF THE FLUID AS SOON AS THE CRUSHER CONE HAS BEEN RESTORED TO ITS OPERATING POSITION.
References Cited (Backward Citations)
US3057563A
Cited
US3133707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |