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Patent US3193902A successfully refreshed from Google Patents.
US3193902A
Expired / Lapsed
US
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Vehicle supported concrete moulding machine
Assignee: Individual
•
Filing: 1963-12-26
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Granted: 1965-07-13
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Alwyn H Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:24
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4886; E01C19/4893; Y; Y10; Y10S; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A VEHICLE SUPPORTED CONCRETE MOULDING MACHINE COMPRISING: A VEHICLE, LAND WHEELS ON THE VEHICLE, A VARIABLE SPEED HYDRAULIC FORWARD TRAVEL MOTOR AND SPEED REDUCTION GEAR BOX CONNECTED FOR DRIVE TO ONE OR MORE OF THE LAND WHEELS, A CONCRETE EXTRUDER ON THE VEHICLE, AND A MOULD ON THE CONCRETE EXTRUDER, CHARACTERIZED BY: AN HYDRAULIC EXTRUDER MOTOR DRIVING CONCRETE EXTRUSION MEANS ON THE CONCRETE EXTRUDER, DRIVEN HYDRAULIC PUMP MEANS ON THE VEHICLE HYDRAULICALLY CONNECTED TO BOTH THE FORWARD TRAVEL AND EXTRUSION MOTORS, AND A FORWARD TRAVEL PRESSURE RESPONSIVE THROTTLE VALVE IN THE HYDRAULIC LINE BETWEEN SAID PUMP MEANS AND SAID TRAVEL MOTOR FOR CONTROL OF RATE OF OIL FLOW THEREBETWEEN, SAID FORWARD TRAVEL PRESSURE RESPONSIVE THROTTLE VALVE BEING HYDRAULICALLY CONNECTED TO AND RESPONSIVE TO THE INPUT PRESSURE OF THE EXTRUDER MOTOR, WHEREBY FORWARD TRAVEL SPEED OF THE VEHICLE IS A FUNCTION OF THE INPUT HYDRAULIC PRESSURE OF SAID EXTRUDER MOTOR.
Claim 2
Dependent Claim
149 words
A VEHICLE SUPPORTED CONCRETE MOULDING MACHINE COMPRISING: A VEHICLE, LAND WHEELS ON THE VEHICLE, A VARIABLE SPEED HYDRAULIC FORWARD TRAVEL MOTOR AND SPEED REDUCTION GEAR BOX CONNECTED FOR DRIVE TO ONE OR MORE OF THE LAND WHEELS, A CONCRETE EXTRUDER ON THE VEHICLE, AND A MOULD ON THE CONCRETE EXTRUDER, CHARACTERIZED BY: AN HYDRAULIC EXTRUDER MOTOR DRIVING CONCRETE EXTRUSION MEANS ON THE CONCRETE EXTRUDER, DRIVEN HYDRAULIC PUMP MEANS ON THE VEHICLE HYDRAULICALLY CONNECTED TO BOTH THE FORWARD TRAVEL AND EXTRUSION MOTORS, AND A FORWARD TRAVEL PRESSURE RESPONSIVE THROTTLE VALVE IN THE HYDRAULIC LINE BETWEEN SAID PUMP MEANS AND SAID TRAVEL MOTOR FOR CONTROL OF RATE OF OIL FLOW THEREBETWEEN, SAID FORWARD TRAVEL PRESSURE RESPONSIVE THROTTLE VALVE BEING HYDRAULICALLY CONNECTED TO AND RESPONSIVE TO THE INPUT PRESSURE OF THE EXTRUDER MOTOR, WHEREBY FORWARD TRAVEL SPEED OF THE VEHICLE IS A FUNCTION OF THE INPUT HYDRAULIC PRESSURE OF SAID EXTRUDER MOTOR.
References Cited (Backward Citations)
US1084158A
Cited
US2747224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |