US4320628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick air cooling system for use with automotive vehicle air conditioner
Assignee: Nissan Motor Co Ltd
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Filing: 1980-10-06
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Granted: 1982-03-23
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Expires: 2000-10-06
Abstract
Abstract A quick system for use with an automotive vehicle air conditioner. The air conditioner has a first air intake port opening to the vehicle interior and a second air intake port opening to the vehicle exterior, and an air intake valve for selectively alternatively closing the air intake ports. When the air conditioner switch 1 is turned on or closed, a valve actuator for the air intake valve shifts the air intake valve to alternatively close the air intake ports to admit into the air conditioner the lower temperature air between air within the vehicle interior and air within the vehicle exterior, to shorten the time required for air cooling within the vehicle interior.
Inventors
- 👤 Masao Okajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:19
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00642; B60H1/00814; B60H1/00821; B60H1/00835; B60H1/00849; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/193; G05D23/1931; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
A system for use with an automotive vehicle air conditioner having a first air intake port opening into the vehicle interior and a second air intake port opening to the vehicle exterior and an air intake valve for selectively alternatively closing said air intake ports, said system comprising: (a) first sensor for sensing the air temperature within the vehicle interior; (b) second sensor for sensing the air temperature outside the vehicle; (c) comparator for comparing the two sensed temperatures; and (d) valve actuator for shifting the valve to alternatively close said air intake ports, said comparator being constructed to send an output signal to said valve actuator indicating which of the vehicle interior air and the vehicle exterior air is a lower temperature than the other, and said valve actuator actuates the air intake valve to open the air intake port opening to the lower temperature one.
Claim 2
Independent Claim
147 words
A system for use with an automotive vehicle air conditioner having a first air intake port opening into the vehicle interior and a second air intake port opening to the vehicle exterior and an air intake valve for selectively alternatively closing said air intake ports, said system comprising: (a) first sensor for sensing the air temperature within the vehicle interior; (b) second sensor for sensing the air temperature outside the vehicle; (c) comparator for comparing the two sensed temperatures; and (d) valve actuator for shifting the valve to alternatively close said air intake ports, said comparator being constructed to send an output signal to said valve actuator indicating which of the vehicle interior air and the vehicle exterior air is a lower temperature than the other, and said valve actuator actuates the air intake valve to open the air intake port opening to the lower temperature one.
Claim 3
Dependent Claim
50 words
The system as claimed in claim 1, wherein the air intake valve normally closes the port to the vehicle interior, and said comparator sends the output signal to open the air intake port to the vehicle interior only when the vehicle interior temperature is lower than the vehicle exterior temperature.
Claim 4
Dependent Claim
32 words
The system as claimed in claim 1, wherein said comparator sends the output signal indicating which of the interior and exterior temperatures is lower, and wherein the actuator actuates the valve accordingly.
References Cited (Backward Citations)
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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) | 1985-03-22 | 1985-09-21 | 1986-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-22 | 1989-09-21 | 1990-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-22 | 1993-09-21 | 1994-03-23 | $7700.00 | Window Closed / Lapsed |