Patent US3149886A successfully refreshed from Google Patents.
US3149886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load-controlled brake system
Assignee: IHO Holding GmbH and Co KG
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Filing: 1963-04-09
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Granted: 1964-09-22
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Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 Dorner Harro Georg Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:24
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; B; B60; B60T; B60T8/00; B60T8/18; B60T8/1837; B60T8/1856; B60T8/1868
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A CONTROL DEVICE FOR HYDRAULIC BRAKES OF VEHICLES FOR CONTROLLING THE BRAKING FORCE APPLIED TO THE WHEELS OF AN AXLE OF SAID VEHICLES AS A FUNCTION OF THE AXLE LOAD, COMPRISING A MASTER BRAKE CYLINDER, AT LEAST ONE WHEEL BRAKE CYLINDER, A FLUID LINE CONNECTING SAID CYLINDERS, A SHUT-OFF VALVE IN SAID FLUID LINE, A CONTROL PISTON ACTUATING SAID SHUT-OFF VALVE, ONE END OF SAID PISTON BEING LOADED BY THE PRESSURE PREVAILING IN THE WHEEL BRAKE CYLINDER AND AN ELASTIC MEMBER DISPOSED BETWEEN SAID PISTON AND SAID AXLE TO LOAD THE OTHER END OF SAID PISTON, TO CLOSE THE SHUTOFF VALVE AND TO AVOID FURTHER INCREASE OF THE BRAKING FORCE APPLIED TO THE WHEELS WHILE THE AXLE LOAD IS REDUCED, FURTHER COMPRISING A PRESSURE LINE CONNECTING SAID MASTER BRAKE CYLINDER WITH SAID WHEEL BRAKE CYLINDER AND BYPASSING SAID SHUT-OFF VALVE, AND A CLOSURE MEMBER IN SAID PRESSURE LINE, SAID CLOSURE MEMBER BEING HELD IN CLOSED POSITION BY SAID ELASTIC MEMBER.
Claim 2
Dependent Claim
160 words
A CONTROL DEVICE FOR HYDRAULIC BRAKES OF VEHICLES FOR CONTROLLING THE BRAKING FORCE APPLIED TO THE WHEELS OF AN AXLE OF SAID VEHICLES AS A FUNCTION OF THE AXLE LOAD, COMPRISING A MASTER BRAKE CYLINDER, AT LEAST ONE WHEEL BRAKE CYLINDER, A FLUID LINE CONNECTING SAID CYLINDERS, A SHUT-OFF VALVE IN SAID FLUID LINE, A CONTROL PISTON ACTUATING SAID SHUT-OFF VALVE, ONE END OF SAID PISTON BEING LOADED BY THE PRESSURE PREVAILING IN THE WHEEL BRAKE CYLINDER AND AN ELASTIC MEMBER DISPOSED BETWEEN SAID PISTON AND SAID AXLE TO LOAD THE OTHER END OF SAID PISTON, TO CLOSE THE SHUTOFF VALVE AND TO AVOID FURTHER INCREASE OF THE BRAKING FORCE APPLIED TO THE WHEELS WHILE THE AXLE LOAD IS REDUCED, FURTHER COMPRISING A PRESSURE LINE CONNECTING SAID MASTER BRAKE CYLINDER WITH SAID WHEEL BRAKE CYLINDER AND BYPASSING SAID SHUT-OFF VALVE, AND A CLOSURE MEMBER IN SAID PRESSURE LINE, SAID CLOSURE MEMBER BEING HELD IN CLOSED POSITION BY SAID ELASTIC MEMBER.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |