US3247889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid heating and evaporating apparatus
Assignee: Selas Corp of America
•
Filing: 1962-07-17
•
Granted: 1966-04-26
•
Expires: 1982-07-17
Abstract
No abstract record available.
Inventors
- 👤 Williams Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:59
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/06; B; B01; B01D; B01D1/00; B01D1/14; F22; F22B; F22B1/00; F22B1/02; F22B1/16; F22B1/22; F22B1/26; F22D; F22D1/00; F22D1/28; F23; F23D; F23D99/00; F23D99/002; F23D99/004; F23D99/005; F24; F24H; F24H1/00; F24H1/10; F24H1/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AN APPARATUS FOR THERMAL TREATMENT OF A LIQUID COMPRISING MEANS FOR APPLYING HOT GASES, A SHELL FORMING A CHAMBER ADAPTED TO RECEIVE AND CONVEY THERETHROUGH SAID HOT GASES, A GAS EXIT NOZZLE AT THE DOWNSTREAM END OF SAID CHAMBER, A VENTURI TUBE HAVING A PASSAGEWAY WITH A CONVERGING, UPSTREAM PORTION AND A FLARING DOWNSTREAM PORTION, SAID GAS EXIT NOZZLE PROJECTING INTO SAID UPSTREAM PORTION, MEANS TO SUPPLY LIQUID TO SAID UPSTREAM PORTION OF SAID PASSAGEWAY ABOUT THE DOWNSTREAM END OF SAID NOZZLE, THEREBY INJECTING LIQUID INTO THE HOT GAS STREAM FLOWING THROUGH SAID PASSAGEWAY, SEPARATOR MEANS COMMUNICATED WITH THE OTHER END OF SAID PASSAGEWAY FOR SEPARATING THE RESULTANT LIQUID-GAS MIXTURE INTO A LIQUID PHASE AND A GAS PHASE, A DRIVE SHAFT EXTENDING THROUGH SAID PASSAGEWAY, MEANS FOR CIRCULATING A COOLING LIQUID THROUGH SAID DRIVE SHAFT FOR COOLING SAID SHAFT, AND SCRAPER MEANS ON SAID DRIVE SHAFT IN CONTACT WITH A WALL OF SAID NOZZLE FOR SCRAPING DEPOSITED MATERIAL FROM A WALL OF SAID NOZZLE.
Claim 2
Independent Claim
164 words
AN APPARATUS FOR THERMAL TREATMENT OF A LIQUID COMPRISING MEANS FOR APPLYING HOT GASES, A SHELL FORMING A CHAMBER ADAPTED TO RECEIVE AND CONVEY THERETHROUGH SAID HOT GASES, A GAS EXIT NOZZLE AT THE DOWNSTREAM END OF SAID CHAMBER, A VENTURI TUBE HAVING A PASSAGEWAY WITH A CONVERGING, UPSTREAM PORTION AND A FLARING DOWNSTREAM PORTION, SAID GAS EXIT NOZZLE PROJECTING INTO SAID UPSTREAM PORTION, MEANS TO SUPPLY LIQUID TO SAID UPSTREAM PORTION OF SAID PASSAGEWAY ABOUT THE DOWNSTREAM END OF SAID NOZZLE, THEREBY INJECTING LIQUID INTO THE HOT GAS STREAM FLOWING THROUGH SAID PASSAGEWAY, SEPARATOR MEANS COMMUNICATED WITH THE OTHER END OF SAID PASSAGEWAY FOR SEPARATING THE RESULTANT LIQUID-GAS MIXTURE INTO A LIQUID PHASE AND A GAS PHASE, A DRIVE SHAFT EXTENDING THROUGH SAID PASSAGEWAY, MEANS FOR CIRCULATING A COOLING LIQUID THROUGH SAID DRIVE SHAFT FOR COOLING SAID SHAFT, AND SCRAPER MEANS ON SAID DRIVE SHAFT IN CONTACT WITH A WALL OF SAID NOZZLE FOR SCRAPING DEPOSITED MATERIAL FROM A WALL OF SAID NOZZLE.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |