US5040455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilation device for automobiles
Assignee: Mazda Motor Corp
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Filing: 1990-06-18
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Granted: 1991-08-20
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Expires: 2010-06-18
Abstract
Abstract A solar powered ventilation device for a vehicle has a solar cell disposed on a car body and electrically connected to an electrically operated ventilation system, and a controller for detecting a predetermined temperature outside the car to electrically disconnect the ventilation system from the solar cell. The ventilation system is supplied with electric power from the solar cell, thereby ventilating or exhausting air from the vehicle interior only when the exterior temperature is higher than the predetermined temperature.
Inventors
- 👤 Shigetoshi Doi
- 👤 Shinshi Kajimoto
- 👤 Mitsutoshi Kuroiwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:24
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/24; B60H1/248; B60H1/249; B60H1/00421; B60H1/00428; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/88; Y10; Y10S; Y10S454/00; Y10S454/90
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
A solar powered ventilation device for an automotive vehicle having a ventilation duct with an air outlet facing outside of said automotive vehicle, comprising: ventilation means operated by electric power for exhausting air in said automotive vehicle through said air outlet; a solar cell, disposed on said automotive vehicle and electrically connected to motor means, for absorbing sunlight and converting radiation of absorbed sunlight to said electric power, said electric power being supplied to said motor means for operating said ventilation means; and control means for detecting a specific, predetermined temperature outside said automotive vehicle to electrically connect said motor means to said solar cell and supply said electric power to said motor means and operate said ventilation means.
Claim 2
Dependent Claim
119 words
A solar powered ventilation device for an automotive vehicle having a ventilation duct with an air outlet facing outside of said automotive vehicle, comprising: ventilation means operated by electric power for exhausting air in said automotive vehicle through said air outlet; a solar cell, disposed on said automotive vehicle and electrically connected to motor means, for absorbing sunlight and converting radiation of absorbed sunlight to said electric power, said electric power being supplied to said motor means for operating said ventilation means; and control means for detecting a specific, predetermined temperature outside said automotive vehicle to electrically connect said motor means to said solar cell and supply said electric power to said motor means and operate said ventilation means.
Claim 3
Dependent Claim
22 words
A ventilation device as defined in claim 1, wherein said ventilation means includes a motor operated fan disposed in said ventilation duct.
Claim 4
Dependent Claim
47 words
A ventilation device as defined in claim 1, wherein said control means comprises a temperature sensor disposed close to said air outlet of said ventilation duct and switch means for closing and switching on when said temperature sensor detects said specific, predetermined temperature outside said automotive vehicle.
Claim 5
Dependent Claim
58 words
A ventilation device as defined in claim 1, wherein said control means comprises a first, exterior thermostat switch connected in series between said ventilation means and said solar cell for closing and switching itself on at a switching temperature equal to said specific, predetermined temperature to supply said electric power to said ventilation means from said solar cell.
Claim 6
Dependent Claim
29 words
A ventilation device as defined in claim 4, wherein said first exterior thermostat switch is disposed close to said air outlet of said ventilation duct outside said automotive vehicle.
Claim 7
Dependent Claim
65 words
A ventilation device as defined in claim 5, said control means further comprising a second thermostat switch disposed inside said automotive vehicle and connected in series to said first exterior thermostat switch, said second thermostat switch switching itself off at a switching temperature higher than said specific, predetermined temperature to cut off electric power supplied to said motor operated ventilation means from said solar cell.
Claim 8
Dependent Claim
46 words
A ventilation device as defined in claim 5, wherein said control means further comprises a manually operable, normally open switch disposed in said automotive vehicle and connected in series to said exterior thermostat switch, said manually operable, normally open switch being closed when ventilation is expected.
Claim 9
Dependent Claim
77 words
A ventilation device as defined in claim 1, wherein said control means comprises an exterior thermostat switch connected in series between said ventilation means and said solar cell, said exterior thermostat switch switching itself on at a first switching temperature equal to said specific temperature to supply electric power to said ventilation means from said solar cell and switching itself off at a second switching temperature higher than said first switching temperature to disconnect said electric power.
Claim 10
Dependent Claim
24 words
A ventilation device as defined in claim 8, wherein said exterior thermostat switch is disposed close to said air outlet of said ventilation duct.
Claim 11
Dependent Claim
46 words
A ventilation device as defined in claim 8, wherein said control means further comprises a manually operable, normally open switch disposed in said automotive vehicle and connected in series to said exterior thermostat switch, said manually operable, normally open switch being closed when ventilation is expected.
Claim 12
Dependent Claim
30 words
A ventilation device as defined in claim 8, wherein said exterior thermostat switch has a first switching temperature about 15° C. and a second switching temperature of about 20° C.
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) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |