US3086786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid suspension for automobiles with pneumatic stabilizers
Assignee: ZF Boge GmbH
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Filing: 1960-04-06
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Granted: 1963-04-23
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 Tuczek Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:06
CPC Classifications
B; B60; B60G; B60G21/00; B60G21/02; B60G21/06; B60G17/00; B60G17/02; B60G17/033; B60G21/073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A FLUID SUSPENSION FOR THE OPPOSITE WHEELS OF A MOTOR VEHICLE MOUNTED ON THE SAME AXLE WHICH IS DIVIDED INTO TWO PIVOTABLE HALF-AXIES, A CENTRAL SUSPENSION UNIT COMPRISING TWO CYLINDERS EACH HAVING A PAIR OF WORK CHAMBERS THEREIN, A STEPPED PISTON SLIDABLE WITHIN EACH PAIR OF WORK CHAMBERS OF EACH CYLINDER, A CUSHION OF GAS UNDER PRESSURE CONNECTED TO EACH WORK CHAMBER, EACH OF SAID PISTONS HAVING A SMALLER CIRCULAR SURFACE AT ONE END, A LARGER CIRCULAR SURFACE AT THE OTHER END, AND AN ANNULAR SURFACE INTERMEDIATE SAID ENDS, MEANS FOR OPERATIVELY CONNECTING EACH HALF-AXLE TO THE SMALLER CIRCULAR SURFACE OF ONE OF SAID PISTONS, THE ANNULAR SURFACE OF EACH PISTON IN THE CORRESPONDING ANNULAR WORK CHAMBER BEING ADAPTED TO PRODUCE NEGATIVE CUSHIONING FORCES, THE
Claim 2
Dependent Claim
126 words
IN A FLUID SUSPENSION FOR THE OPPOSITE WHEELS OF A MOTOR VEHICLE MOUNTED ON THE SAME AXLE WHICH IS DIVIDED INTO TWO PIVOTABLE HALF-AXIES, A CENTRAL SUSPENSION UNIT COMPRISING TWO CYLINDERS EACH HAVING A PAIR OF WORK CHAMBERS THEREIN, A STEPPED PISTON SLIDABLE WITHIN EACH PAIR OF WORK CHAMBERS OF EACH CYLINDER, A CUSHION OF GAS UNDER PRESSURE CONNECTED TO EACH WORK CHAMBER, EACH OF SAID PISTONS HAVING A SMALLER CIRCULAR SURFACE AT ONE END, A LARGER CIRCULAR SURFACE AT THE OTHER END, AND AN ANNULAR SURFACE INTERMEDIATE SAID ENDS, MEANS FOR OPERATIVELY CONNECTING EACH HALF-AXLE TO THE SMALLER CIRCULAR SURFACE OF ONE OF SAID PISTONS, THE ANNULAR SURFACE OF EACH PISTON IN THE CORRESPONDING ANNULAR WORK CHAMBER BEING ADAPTED TO PRODUCE NEGATIVE CUSHIONING FORCES, THE
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |