US3236298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchangers
Assignee: LAING VORTEX Inc
•
Filing: 1963-04-19
•
Granted: 1966-02-22
•
Expires: 1983-04-19
Abstract
No abstract record available.
Inventors
- 👤 Laing Nikolaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
F; F01; F01K; F01K9/00; F01K9/003; F04; F04D; F04D17/00; F04D17/02; F04D17/04; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/441; F28; F28B; F28B1/00; F28B1/06; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1653; F28F; F28F25/00; F28F25/10; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/302; Y10S165/311; Y10S165/313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A COOLING TOWER HAVING SIDE PORTIONS THEREOF FORMED OF A PLURALITY OF UPSTANDING RECTANGULAR SHAPED HEAT EXCHANGER UNITS EXTENDING THE HEIGHT OF THE TOWER WITH SAID UNITS BEING OUTWARDLY AND UPWARDLY INCLINED; EACH SAID UNIT COMPRISING AN UPSTANDING RECTANGULAR SHAPED HEAT EXCHANGER BLCOK AND A PAIR OF UPSTANDING OUTWARDLY AND UPWARDLY EXTENDING CYLINDRICAL ROTORS MOUNTED WITH THEIR AXES PARALLEL TO EACH OTHER ON THE OUTSIDE OF THE BLOCK AND EXTENDING OVER THE HEIGHT THEREOF FOR BLOWING AIR THROUGH THE THICKNESS OF THE BLOCK FROM THE OUTSIDE OF THE TOWER TO THE INSIDE FOR UPWARD DISCHARGE THROUGH THE TOWER, AND GUIDE MEANS WHICH IN OPERATION OF THE ROTORS GUIDES AIR TWICE THROUGH THE BLADES OF EACH ROTOR TRANSVERSELY TO THE AXIS THEREOF AND SUBSEQUENTLY THROUGH THE BLOCK, SAID GUIDE MEANS INCLUDING A PAIR OF OPPOSED DIVERGING WALLS EACH LEADING FROM ADJACENT ONE ROTOR TO THE CORRESPONDING SIDE OF THE BLOCK, SAID WALLS PROVIDING A COMMON DIFFUSER RECEIVING THE AIR FROM BOTH ROTORS AND LEADING IT TO THE BLOCK; AND DRIVE MEANS TO ROTATE THE ROTORS OF EACH UNIT AT EQUAL SPEED IN OPPOSITE DIRECTIONS.
Claim 2
Dependent Claim
183 words
A COOLING TOWER HAVING SIDE PORTIONS THEREOF FORMED OF A PLURALITY OF UPSTANDING RECTANGULAR SHAPED HEAT EXCHANGER UNITS EXTENDING THE HEIGHT OF THE TOWER WITH SAID UNITS BEING OUTWARDLY AND UPWARDLY INCLINED; EACH SAID UNIT COMPRISING AN UPSTANDING RECTANGULAR SHAPED HEAT EXCHANGER BLCOK AND A PAIR OF UPSTANDING OUTWARDLY AND UPWARDLY EXTENDING CYLINDRICAL ROTORS MOUNTED WITH THEIR AXES PARALLEL TO EACH OTHER ON THE OUTSIDE OF THE BLOCK AND EXTENDING OVER THE HEIGHT THEREOF FOR BLOWING AIR THROUGH THE THICKNESS OF THE BLOCK FROM THE OUTSIDE OF THE TOWER TO THE INSIDE FOR UPWARD DISCHARGE THROUGH THE TOWER, AND GUIDE MEANS WHICH IN OPERATION OF THE ROTORS GUIDES AIR TWICE THROUGH THE BLADES OF EACH ROTOR TRANSVERSELY TO THE AXIS THEREOF AND SUBSEQUENTLY THROUGH THE BLOCK, SAID GUIDE MEANS INCLUDING A PAIR OF OPPOSED DIVERGING WALLS EACH LEADING FROM ADJACENT ONE ROTOR TO THE CORRESPONDING SIDE OF THE BLOCK, SAID WALLS PROVIDING A COMMON DIFFUSER RECEIVING THE AIR FROM BOTH ROTORS AND LEADING IT TO THE BLOCK; AND DRIVE MEANS TO ROTATE THE ROTORS OF EACH UNIT AT EQUAL SPEED IN OPPOSITE DIRECTIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |