Patent US4365952A successfully refreshed from Google Patents.
Patent US3265372A successfully refreshed from Google Patents.
US3265372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distribution system
Assignee: Baltimore Aircoil Co Inc
•
Filing: 1964-02-27
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Granted: 1966-08-09
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Wilson E Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:25
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/10; F28F25/12; F28D; F28D5/00; F28D5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN AN EVAPORATIVE HEAT EXCHANGER OF THE TYPE WHERE AIR IS BLOWN COUNTERCURRENT TO GRAVIATING WATER DROPS THROUGH A HEAT EXCHANGE REGION, THE IMPROVEMENT THAT COMPRISES A PROPELLER-TYPE FAN, CIRCULAR DUCTING DOWNSTREAM OF SAID FAN TERMINATING BELOW THE HEAT EXCHANGE REGION AN IN THE PATH OF THE GRAVIATING WATER, CIRCUMFERENTIALLY SPACED BAFFLES EXTENDING RADIALLY INWARDLY FROM THE INNER SURFACE OF SAID DUCTING, SAID BAFFLES BEING PARALLEL TO THE LONG AXIS OF THE DUCTING AND BEGINNING AT LEAST ABPUT 2'''' DOWNSTREAM OF THE FAN, THE SPACE DEFINED BY SAID DUCTING BEING, EXCEPT FOR SAID BAFFLES, FREE OF STRUCTURES MODIFYING ITS SHAPE OR VOLUME.
Claim 2
Dependent Claim
102 words
IN AN EVAPORATIVE HEAT EXCHANGER OF THE TYPE WHERE AIR IS BLOWN COUNTERCURRENT TO GRAVIATING WATER DROPS THROUGH A HEAT EXCHANGE REGION, THE IMPROVEMENT THAT COMPRISES A PROPELLER-TYPE FAN, CIRCULAR DUCTING DOWNSTREAM OF SAID FAN TERMINATING BELOW THE HEAT EXCHANGE REGION AN IN THE PATH OF THE GRAVIATING WATER, CIRCUMFERENTIALLY SPACED BAFFLES EXTENDING RADIALLY INWARDLY FROM THE INNER SURFACE OF SAID DUCTING, SAID BAFFLES BEING PARALLEL TO THE LONG AXIS OF THE DUCTING AND BEGINNING AT LEAST ABPUT 2'''' DOWNSTREAM OF THE FAN, THE SPACE DEFINED BY SAID DUCTING BEING, EXCEPT FOR SAID BAFFLES, FREE OF STRUCTURES MODIFYING ITS SHAPE OR VOLUME.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |