US4376408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air circulation system in a vehicle compartment of an automotive vehicle
Assignee: Nissan Motor Co Ltd
•
Filing: 1980-11-20
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Granted: 1983-03-15
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Expires: 2000-11-20
Abstract
Abstract An air circulation system for effectively and comfortably circulating the air in the vehicle compartment, which system comprises an air passage having intake below the rear seat and outlet in the rear pacel shelf. Thereby, the air in the vehicle compartment is drawn to the intake of the air passage and discharged from the rear portion of the rear seat. This is cooperatively effect to air flow in the vehicle compartment for circulating the air therein effectively and comfortably.
Inventors
- 👤 Tetsuya Iijima
- 👤 Hiroshi Yano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:23
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00207; B60H1/00457; B60H1/00471; B60H1/24; B60H1/247; B60H3/00; B60H3/06; B60H3/0608; B60H2001/00242
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
194 words
An air circulation system for circulating air in an automotive vehicle compartment comprising: an air intake opening located below a rear vehicle seat; an air outlet located at a rear portion of said rear vehicle seat for discharging air upwardly into said vehicle compartment; air passage means interpositioned between said air intake opening and said outlet, said passage means including air circulating means for generating flow of air within said air passage means and forcing the air to flow through said air passage means; a ventilation passage communicating with said air passage means downstream of said air recirculating means, said ventilation passage communicating with the atmosphere to discharge air from the vehicle compartment; and damper means provided upstream of said outlet and operatively positioned in the air passage means and being selectively movable (1) to establish a first air flow path from the intake opening to the air outlet to recirculate air within the compartment and (2) to establish a second air flow path from the intake opening to the ventilation passage to ventilate air to the outside of the compartment, said damper means thereby switching, recirculating and ventilating air in the vehicle compartment.
Claim 2
Dependent Claim
194 words
An air circulation system for circulating air in an automotive vehicle compartment comprising: an air intake opening located below a rear vehicle seat; an air outlet located at a rear portion of said rear vehicle seat for discharging air upwardly into said vehicle compartment; air passage means interpositioned between said air intake opening and said outlet, said passage means including air circulating means for generating flow of air within said air passage means and forcing the air to flow through said air passage means; a ventilation passage communicating with said air passage means downstream of said air recirculating means, said ventilation passage communicating with the atmosphere to discharge air from the vehicle compartment; and damper means provided upstream of said outlet and operatively positioned in the air passage means and being selectively movable (1) to establish a first air flow path from the intake opening to the air outlet to recirculate air within the compartment and (2) to establish a second air flow path from the intake opening to the ventilation passage to ventilate air to the outside of the compartment, said damper means thereby switching, recirculating and ventilating air in the vehicle compartment.
Claim 3
Dependent Claim
169 words
An air circulation system for circulating air in a vehicle compartment comprising: an air intake defined below a vehicle seat; an air outlet located at a rear portion of a vehicle rear seat and directed upwardly to discharge the air introduced through said air intake for recirculation within the vehicle compartment; air passage means interpositioned between said air intake and said outlet and including an air circulating means for generating a flow of air within said air passage means and forcing the air to flow therethrough; a ventilation passage joined with said air passage means downstream of said air circulating means which passage is adapted to ventilate the air to the outside of the vehicle compartment; and damper means provided upstream of said outlet and being movable between a first position where said air passage means is connected to said outlet and a second position where said air passage means is connected to said ventilation passage said damper means thereby switching, recirculating and ventilating air in the vehicle compartment.
Claim 4
Dependent Claim
169 words
An air circulation system for circulating air in a vehicle compartment comprising: an air intake defined below a vehicle seat; an air outlet located at a rear portion of a vehicle rear seat and directed upwardly to discharge the air introduced through said air intake for recirculation within the vehicle compartment; air passage means interpositioned between said air intake and said outlet and including an air circulating means for generating a flow of air within said air passage means and forcing the air to flow therethrough; a ventilation passage joined with said air passage means downstream of said air circulating means which passage is adapted to ventilate the air to the outside of the vehicle compartment; and damper means provided upstream of said outlet and being movable between a first position where said air passage means is connected to said outlet and a second position where said air passage means is connected to said ventilation passage said damper means thereby switching, recirculating and ventilating air in the vehicle compartment.
Claim 5
Independent Claim
33 words
A system as set forth in claims 1 or 2, wherein said air intake is defined by a downwardly depressed groove formed on a vehicle body floor panel extending below said vehicle seat.
Claim 6
Dependent Claim
24 words
A system as set forth in claim 1, wherein said groove is closed with a closure member extending across the opened upper end thereof.
Claim 7
Independent Claim
28 words
A system as set forth in claims 1 or 2, wherein said outlet has an air purifier for purifying the air to be recirculated into said vehicle compartment.
Claim 8
Dependent Claim
40 words
A system according to claim 1 or 2, wherein said ventilation passage includes one end operatively connected to the air passage means downstream from the air circulating means and an opposite end opening to an area outside the vehicle compartment.
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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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |