US3140708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow and ice melter
Assignee: BRISTOL SHEET METAL CO
•
Filing: 1962-05-31
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Granted: 1964-07-14
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Petlak
- 👤 Reichhelm Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:40
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/10; E01H5/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A SNOW AND ICE MELTER, IN COMBINATION WITH A JET ENGINE, COMPRISING A HOPPER TAPERING DOWNWARDLY AND INWARDLY AND HAVING AN OPEN TOP FOR THE INLET OF SNOW AND ICE, A MELTING DUCT BELOW THE HOPPER AND COMMUNICATING WITH THE BOTTOM THEREOF, SAID HOPPER HAVING AN INLET OPENING ABOVE THE DUCT, A NOZZLE IN SAID INLET OPENING AND EXTENDING OUTWARDLY THEREOF, A FLEXIBLE DUCT HAVING ONE END CONNECTED TO THE OUTER END OF THE NOZZLE, THE OTHER END OF THE FLEXIBLE DUCT CONNECTED TO THE EXHAUST GAS OUTLET OF THE JET ENGINE, SAID HOPPER HAVING REFLEX DUCTS ON THE SIDES OF THE MELTING DUCT COMMUNICATING WITH SAID MELTING DUCT AND LEADING TO THE INTERIOR OF THE HOPPER AT THE TOP THEREOF, A WATER SUMP CHAMBER BELOW SAID DUCTS, ICE BREAKING BARS IN SAID MELTING DUCT IN THE PATH OF MOVEMENT OF THE ICE AND SNOW, THE FLOOR OF SAID DUCTS CONSTITUTING THE ROOF OF THE SUMP CHAMBER, AND A SCREEN IN SAID FLOOR.
Claim 2
Dependent Claim
163 words
A SNOW AND ICE MELTER, IN COMBINATION WITH A JET ENGINE, COMPRISING A HOPPER TAPERING DOWNWARDLY AND INWARDLY AND HAVING AN OPEN TOP FOR THE INLET OF SNOW AND ICE, A MELTING DUCT BELOW THE HOPPER AND COMMUNICATING WITH THE BOTTOM THEREOF, SAID HOPPER HAVING AN INLET OPENING ABOVE THE DUCT, A NOZZLE IN SAID INLET OPENING AND EXTENDING OUTWARDLY THEREOF, A FLEXIBLE DUCT HAVING ONE END CONNECTED TO THE OUTER END OF THE NOZZLE, THE OTHER END OF THE FLEXIBLE DUCT CONNECTED TO THE EXHAUST GAS OUTLET OF THE JET ENGINE, SAID HOPPER HAVING REFLEX DUCTS ON THE SIDES OF THE MELTING DUCT COMMUNICATING WITH SAID MELTING DUCT AND LEADING TO THE INTERIOR OF THE HOPPER AT THE TOP THEREOF, A WATER SUMP CHAMBER BELOW SAID DUCTS, ICE BREAKING BARS IN SAID MELTING DUCT IN THE PATH OF MOVEMENT OF THE ICE AND SNOW, THE FLOOR OF SAID DUCTS CONSTITUTING THE ROOF OF THE SUMP CHAMBER, AND A SCREEN IN SAID FLOOR.
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |