Patent US4259896A successfully refreshed from Google Patents.
US4259896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to control the air flow in an automobile
Assignee: Nissan Motor Co Ltd
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Filing: 1980-01-30
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Granted: 1981-04-07
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Expires: 2000-01-30
Abstract
Abstract An apparatus to control the air flow in an automobile comprises a box which is provided beneath a seat and has openings respectively formed in the upper wall and the front wall thereof, a fan which is mounted to the rear wall of the box and of which the rotation can be reversed, a switching plate which is provided in the box in such a way as to selectively close the opening formed in the upper wall and the opening formed in the front wall, and a means to drive the switching plate so as to selectively open either one of said openings in synchronism with the switching of the rotation of the fan, thereby the air is forcibly upwardly passed through the seat or the hot air from a heater or the cold air from a cooler provided in front of the seat is forcibly sent rearwardly through said box.
Inventors
- 👤 Kazuo Hayashi
- 👤 Fujio Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/24; B60H1/241; B60H1/246; B60H1/00642; B60H1/00664; B60H1/00671; B60H1/00678
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
An apparatus to control the air flow in an automobile comprising; a box which is provided beneath a seat and which has a rear opening, a front opening and an upper opening; a fan of which the rotation can be reversed and which is mounted to the box in such a way as to blow air into and blows air out of the box; a switching plate which is provided in the box in such a way as to selectively close either one of the front opening and the upper opening; a means to drive the switching plate so as to close selectively either one of the front opening and the upper opening in synchronism with the switching of the rotation of the fan; thereby the air is forcibly passed upwards through the seat or the hot air from a heater or the cold air from a cooler provided in front of the seat is forcibly sent rearwards through the box.
Claim 2
Independent Claim
161 words
An apparatus to control the air flow in an automobile comprising; a box which is provided beneath a seat and which has a rear opening, a front opening and an upper opening; a fan of which the rotation can be reversed and which is mounted to the box in such a way as to blow air into and blows air out of the box; a switching plate which is provided in the box in such a way as to selectively close either one of the front opening and the upper opening; a means to drive the switching plate so as to close selectively either one of the front opening and the upper opening in synchronism with the switching of the rotation of the fan; thereby the air is forcibly passed upwards through the seat or the hot air from a heater or the cold air from a cooler provided in front of the seat is forcibly sent rearwards through the box.
Claim 3
Dependent Claim
83 words
An apparatus to control the air flow in an automobile as claimed in claim 1, wherein said box consists of a substantially square shaped flange to attach said box to a porous pan in which the seat is put, a rear wall which extends perpendicularly downwards from the rear inner edge of said flange, a front wall which obliquely extends from the lower end of the rear wall until the forward inner edge of the flange and substantially right angled triangular side walls.
Claim 4
Dependent Claim
30 words
An apparatus to control the air flow in an automobile as claimed in claim 2 wherein said switching plate is rotatably mounted at the upper part of the front wall.
Claim 5
Dependent Claim
26 words
An apparatus to control the air flow in an automobile as claimed in claim 3 wherein said fan is driven by means of a DC motor.
Claim 6
Dependent Claim
81 words
An apparatus to control the air flow in an automobile as claimed in claim 3 wherein said switching plate closes the opening formed in the front wall of the box by means of spring force of return springs when said DC motor is driven in the forward direction and closes the upper opening 23 by utilizing the negative pressure in the manifold which overcomes the spring force of the return springs when said DC motor is driven in the reverse direction.
Claim 7
Dependent Claim
36 words
An apparatus to control the air flow in an automobile as claimed in claim 5 wherein a means including a relay is provided for switching the driving direction of the DC motor and the switching plate.
Claim 8
Dependent Claim
54 words
An apparatus to control the air flow in an automobile as claimed in claim 1 wherein said seat comprises an inner cushion formed of porous material, an outer cushion formed of non-porous material which surrounds said inner cushion and a cover formed of porous sheet material which envelopes said inner cushion and outer cushion.
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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) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |