Patent US3570828A successfully refreshed from Google Patents.
US3570828A
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US
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Propane vaporizer
Assignee: Chicago Eastern Corp
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Filing: 1969-04-21
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Granted: 1971-03-16
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Expires: 1989-04-21
Abstract
Abstract A HOT AIR DRYING SYSTEM WHEREIN A VAPORIZING HEATEXCHANGER IN A HOT AIR DUCT OR PLENUM CHAMBER OF THE SYSTEM HEATS AND VAPORIZES LIQUID FUEL FROM A LIQUID FUEL SUPPLY IN A STORAGE TANK AND RETURNS HEATED, VAPOR ENRICHED LIQUID TO THE TANK. A BURNER IN THE SYSTEM DRAWS VAPOROUS FUEL FROM THE TANK FOR COMBUSTION UPON DEMAND DURING STARTING AND NORMAL OPERATION; WHETHER THE SYSTEM OPERATES CONTINUOUSLY OR CYCLICALLY.
Inventors
- 👤 James A Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:47
CPC Classifications
F; F17; F17C; F17C7/00; F17C7/02; F17C7/04; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/22; F26; F26B; F26B17/00; F26B17/12; F26B23/00; F26B23/02; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2227/00; F17C2227/03; F17C2227/0302; F17C2227/0367; F17C2227/0388; F17C2227/0393
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |