Patent US3911060A successfully refreshed from Google Patents.
US3911060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for injection cooling towers
Assignee: Baltimore Aircoil Co Inc
•
Filing: 1973-09-12
•
Granted: 1975-10-07
•
Expires: 1993-09-12
Abstract
Abstract A control system for injection evaporative heat exchangers comprised of a chamber having a mouth, a throat, and a region downstream of the throat between it and the exhaust opening. Water is injected into the throat and induces air flow into the mouth and causes mixed concurrent flow downstream of the throat. Air is discharged from the exhaust opening and cooled water is collected. Controls are provided by which the amount of air pumped per unit time is controllable to accommodate the unit to variable heat load conditions.
Inventors
- 👤 Jr Wilson E Bradley
- 👤 Edward N Schinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:35
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; B; B01; B01D; B01D1/00; B01D1/16; B01D1/30; B01D3/00; B01D3/34; B01D3/343; B01D3/346; F28C; F28C1/00; F28C1/12; F28C3/00; F28C3/06; F28F27/00; F28F27/003; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
AN EVAPORATIVE HEAT EXCHANGER COMPRISING AN INJECTOR HAVING MEANS DEFINING AN AIR INTAKER OPENING AN AIR AND WATER MIXING REGION, A REGION DOWNSTREAM OF SAID AIR AND WATER MIXING REGION, MEANS DEFINING EXHAUST OPENING, MEANS TO SPRAY WATER INTO SAID AIR AND WATER MIXING REGION TO INDUCE AIR FLOW INTO SAID INTAKE OPENING AND FLOW CONCURRENT WITH SAID WATER THROUGH SAID AIR AND WATER MIXING REGION AND DOWNSTREAM REGION, MEANS TO COLLECT THE SPRAYED WATER, A RETURN CONDUIT CONNECTING SAID COLLECTING MEANS TO SAID SPRAY MEANS, A PUMP IN SAID CONDUIT, A BYPASS CONDUIT, A NORMALLY CLOSED VALVE IN SAID BYPASS CONDUIT, A NORMALLY OPEN VALVE IN SAID RETURN CONDUIT BETWEEN SAID BYPASS CONDUIT AND SAID SPRAY MEANS, MEANS RESPONSIVE TO THE TEMPERATURE OF THE WATER ENTERING SAID PUMP TO CAUSE SAID NORMALLY OPEN VALVE TO MOVE IN A CLOSING DIRECTION, WHEN THE TEMPERATURE OF THE WATER ENTERING SAID PUMP FALLS TO A PREDETERMINED TEMPERATURE WHICH PREDETERMINED TEMPERATURE IS BELOW THE TEMPERATURE OF THE SPRAYED WATER, MEANS RESPONSIVE TO WATER PRESSURE INCREASE AT THE OUTLET OF SAID PUMP TO CAUSE SAID NORMALLY CLOSSED
Claim 2
Dependent Claim
183 words
AN EVAPORATIVE HEAT EXCHANGER COMPRISING AN INJECTOR HAVING MEANS DEFINING AN AIR INTAKER OPENING AN AIR AND WATER MIXING REGION, A REGION DOWNSTREAM OF SAID AIR AND WATER MIXING REGION, MEANS DEFINING EXHAUST OPENING, MEANS TO SPRAY WATER INTO SAID AIR AND WATER MIXING REGION TO INDUCE AIR FLOW INTO SAID INTAKE OPENING AND FLOW CONCURRENT WITH SAID WATER THROUGH SAID AIR AND WATER MIXING REGION AND DOWNSTREAM REGION, MEANS TO COLLECT THE SPRAYED WATER, A RETURN CONDUIT CONNECTING SAID COLLECTING MEANS TO SAID SPRAY MEANS, A PUMP IN SAID CONDUIT, A BYPASS CONDUIT, A NORMALLY CLOSED VALVE IN SAID BYPASS CONDUIT, A NORMALLY OPEN VALVE IN SAID RETURN CONDUIT BETWEEN SAID BYPASS CONDUIT AND SAID SPRAY MEANS, MEANS RESPONSIVE TO THE TEMPERATURE OF THE WATER ENTERING SAID PUMP TO CAUSE SAID NORMALLY OPEN VALVE TO MOVE IN A CLOSING DIRECTION, WHEN THE TEMPERATURE OF THE WATER ENTERING SAID PUMP FALLS TO A PREDETERMINED TEMPERATURE WHICH PREDETERMINED TEMPERATURE IS BELOW THE TEMPERATURE OF THE SPRAYED WATER, MEANS RESPONSIVE TO WATER PRESSURE INCREASE AT THE OUTLET OF SAID PUMP TO CAUSE SAID NORMALLY CLOSSED
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |