Patent US3156176A successfully refreshed from Google Patents.
US3156176A
Expired / Lapsed
US
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Heating apparatus
Assignee: ST Regis Paper Co
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Filing: 1959-07-08
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Granted: 1964-11-10
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Expires: 1979-07-08
Abstract
No abstract record available.
Inventors
- 👤 Alden H Wakeman
- 👤 Dan C Roahen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:30
CPC Classifications
A; A23; A23B; A23B11/00; A23B11/10; A23B11/12; A23B11/13; A23B11/133; A23B11/137; A23B11/1375; A01; A01J; A01J9/00; A01J9/04; A23B2/00; A23B2/40; A23B2/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN APPARATUS FOR HEAT TREATING A FLOWING LIQUID, COMPRISING AN ELONGATED UPRIGHT CHAMBER, A FIRST INLET FOR SUCH LIQUID DISPOSED ADJACENT TO THE UPPER END OF SAID CHAMBER, MEANS OPERATIVELY CONNECTED TO SAID FIRST INLET TO EFFECT SPRAY-LIKE DIFFUSION OF THE ENTERING LIQUID TOWARD THE INTERIOR SURFACE OF SAID CHAMBER WHEREBY A SUBSTANTIAL CURTAIN OF LIQUID DESCENDS WITHIN SAID CHAMBER, A SECOND INLET FOR STEAM MOUNTED ON SAID CHAMBER BENEATH SAID LIQUID DIFFUSING MEANS FOR INTRODUCING STEAM INTO SAID CHAMBER IN A DIRECTION SUBSTANTIALLY NORMAL TO SAID CHAMBER LONGITUDINAL AXIS WHEREBY ALL THE STEAM INTRODUCED INTO SAID CHAMBER PENETRATES THE LIQUID CURTAIN AND INTIMATELY MIXES AND IS IN HEAT EXCHANGE WITH THE DESCENDING LIQUID SO THAT ALL OF THE STEAM CONDENSES,
Claim 2
Independent Claim
121 words
AN APPARATUS FOR HEAT TREATING A FLOWING LIQUID, COMPRISING AN ELONGATED UPRIGHT CHAMBER, A FIRST INLET FOR SUCH LIQUID DISPOSED ADJACENT TO THE UPPER END OF SAID CHAMBER, MEANS OPERATIVELY CONNECTED TO SAID FIRST INLET TO EFFECT SPRAY-LIKE DIFFUSION OF THE ENTERING LIQUID TOWARD THE INTERIOR SURFACE OF SAID CHAMBER WHEREBY A SUBSTANTIAL CURTAIN OF LIQUID DESCENDS WITHIN SAID CHAMBER, A SECOND INLET FOR STEAM MOUNTED ON SAID CHAMBER BENEATH SAID LIQUID DIFFUSING MEANS FOR INTRODUCING STEAM INTO SAID CHAMBER IN A DIRECTION SUBSTANTIALLY NORMAL TO SAID CHAMBER LONGITUDINAL AXIS WHEREBY ALL THE STEAM INTRODUCED INTO SAID CHAMBER PENETRATES THE LIQUID CURTAIN AND INTIMATELY MIXES AND IS IN HEAT EXCHANGE WITH THE DESCENDING LIQUID SO THAT ALL OF THE STEAM CONDENSES,
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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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |