Apparatus for breaking a layer of ice on a body of water by repetitive combustive explosions
Abstract
Abstract AN APPARATUS TO BREAK THE ICE ON BODIES OF WATER TO ALLOW PASSAGE OF VESSELS BY PROVIDING A MOVABLE BUOYANT BODY HAVING A FACE FOR CONTACT WITH THE ICE AND A PLURALITY OF EXHAUST OPENINGS IN THE FACE AND POSITIONED BELOW THE WATERLINE OF THE BODY WITH EACH EXHAUST OPENING CONNECTED TO A COMBUSTION CHAMBER FOR APPLYING THE COMBUSTION ENERGY FROM A HYDROCARBON FUEL DIRCTLY TO THE ICE FOR BREAKING AND MELTING THE ICE. PLURALITY OF EXHAUST OPNINGS IN THE HULL OF AN ICE BREAKER ADJACENT THE BOW WITH A NORMALLY CLOSED COMBUSTION CHAMBER CONNECTED TO EACH OPENING. A BUOYANT PONTOON NON-RIGIDLY ATTACHED TO THE BOW OF A SHIP AND HAVING A FRONT FACE EXTENDING DOWNWARDLY ADN OUTWARDLY TO SLIDE UNDER LAYERS OF ICE WITH A PLURALITY OF EXHAUST OPENINGS FOR PORVIDING A COMBUSTIVE EXPOSION DIRECTED AGAINST THE ICE AND HAVING VALVE MEANS NORMALLY CLOSING THE COMBUSTION CHAMBER FOR PREVENTING WATER ENTERING THEREIN BUT OPENING ON A PREDETERMINED PRESSURE BUILDUP IN THE CHAMBER.
Inventors
- 👤 Charles D Wood
Bibliographic Details
Claims Analysis
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |