Patent US278853A successfully refreshed from Google Patents.
US3648480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning in conjunction with internal combustion engine
Assignee: Individual
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Filing: 1970-01-30
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Granted: 1972-03-14
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Expires: 1990-01-30
Abstract
Abstract An air conditioning system wherein air under pressure is derived from an air manifold on an internal combustion engine. The source of air pressure may be a turbocharger, a supercharger or other air pressure means driven by the engine. The air is forced into a primary coil or heat exchanger, preferably in front of the engine radiator, and is cooled to ambient or nearly ambient temperature. The air then passes through a coil in a reduced pressure water vapor cooler and thence outwardly through an insulated line and an orifice in the end thereof. The expansion of air emitted from the orifice is then directed to the space to be cooled. A feature of the invention has to do with the reduced pressure water vapor cooler which is connected with vacuum means created by the engine, for example, a venturi in the exhaust.
Inventors
- 👤 Cleal T Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:35
CPC Classifications
F; F01; F01N; F01N5/00; F01N5/04; B; B60; B60H; B60H1/00; B60H1/32; B60H1/3202; F01N2590/00; F01N2590/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
An air-conditioning system for a vehicle having an internal combustion engine comprising: a source of air under pressure, a first ambient air cooler connected at one end to said source of air to cool the air to approximately ambient air temperature, a second reduced pressure water vapor cooler to further cool the air, said vapor cooler comprising a case having a coil therein through which the air passes connected at one end to said first cooler, a vacuum line connected to said case to reduce the air pressure and create a partial vacuum in said case around said coil, reservoir means for supplying water to said case, and a discharge line connected at one end to the remaining end of said coil in said vapor cooler.
Claim 2
Dependent Claim
126 words
An air-conditioning system for a vehicle having an internal combustion engine comprising: a source of air under pressure, a first ambient air cooler connected at one end to said source of air to cool the air to approximately ambient air temperature, a second reduced pressure water vapor cooler to further cool the air, said vapor cooler comprising a case having a coil therein through which the air passes connected at one end to said first cooler, a vacuum line connected to said case to reduce the air pressure and create a partial vacuum in said case around said coil, reservoir means for supplying water to said case, and a discharge line connected at one end to the remaining end of said coil in said vapor cooler.
Claim 3
Dependent Claim
32 words
An air-conditioning system for a vehicle according to claim 1, wherein said vacuum line is connected with a venturi in the exhaust system of said engine to create a source of vacuum.
Claim 4
Dependent Claim
28 words
An air-conditioning system for a vehicle according to claim 1 wherein said discharge line includes an orifice therein prior to the point at which the air is discharged.
Claim 5
Dependent Claim
22 words
An air-conditioning system for a vehicle according to claim 1 wherein said first cooler includes a coil through which the air passes.
Claim 6
Dependent Claim
175 words
An air-conditioning system for a vehicle having an internal combustion engine comprising: a source of air under pressure, a first ambient air cooler having a coil through which the air passes to be cooled to approximately ambient temperature connected at one end to said source of air, a second reduced pressure water vapor cooler to further cool the air, said vapor cooler comprising a case having a coil therein through which the air passes connected at one end to the remaining end of said coil in said first cooler, a vacuum line connected to said case to reduce the air pressure and create a partial vacuum in said case around said vapor cooler coil, a venturi in the exhaust system of said enginE connected to said vacuum line to create a source of vacuum, reservoir means for supplying water to said case, a discharge line connected at one end to the remaining end of said vapor cooler coil, and an orifice in said discharge line prior to the point at which the air is discharged.
Claim 7
Dependent Claim
175 words
An air-conditioning system for a vehicle having an internal combustion engine comprising: a source of air under pressure, a first ambient air cooler having a coil through which the air passes to be cooled to approximately ambient temperature connected at one end to said source of air, a second reduced pressure water vapor cooler to further cool the air, said vapor cooler comprising a case having a coil therein through which the air passes connected at one end to the remaining end of said coil in said first cooler, a vacuum line connected to said case to reduce the air pressure and create a partial vacuum in said case around said vapor cooler coil, a venturi in the exhaust system of said enginE connected to said vacuum line to create a source of vacuum, reservoir means for supplying water to said case, a discharge line connected at one end to the remaining end of said vapor cooler coil, and an orifice in said discharge line prior to the point at which the air is discharged.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |