Patent US4685727A successfully refreshed from Google Patents.
US4685727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle seat
Assignee: Keiper Recaro GmbH and Co
•
Filing: 1986-03-26
•
Granted: 1987-08-11
•
Expires: 2006-03-26
Abstract
Abstract A vehicle seat has a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel through which air flows. The wall is at least substantially impermeable to air at the pressure prevailing in the channel and comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop.
Inventors
- 👤 Heinz P. Cremer
- 👤 Werner Wittig
- 👤 Hans W. Voss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:46
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/56; B60N2/5607; B60N2/5621; B60N2/5635; A; A47; A47C; A47C7/00; A47C7/62; A47C7/72; A47C7/74
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
108 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop.
Claim 2
Dependent Claim
108 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop.
Claim 3
Dependent Claim
132 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the moisture passage resistance of the material is less than 0.2 m 2 mbar/watt, and is preferably less than 0.15 m 2 mbar/watt.
Claim 4
Dependent Claim
132 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the moisture passage resistance of the material is less than 0.2 m 2 mbar/watt, and is preferably less than 0.15 m 2 mbar/watt.
Claim 5
Dependent Claim
22 words
The vehicle seat according to claim 2, wherein the moisture passage resistance of the material is less than 0.05 m 2 mbar/watt.
Claim 6
Dependent Claim
131 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the air permeability of the material is less than 20 l/m 2 mbar, and is preferably less than 10 l/m 2 mbar.
Claim 7
Dependent Claim
131 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the air permeability of the material is less than 20 l/m 2 mbar, and is preferably less than 10 l/m 2 mbar.
Claim 8
Dependent Claim
22 words
The vehicle seat according to claim 4, wherein the air permeability of the material is less than 5 l/m 2 s mbar.
Claim 9
Dependent Claim
123 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the heat conductivity resistance of the material is less than 0.3 m 2 °K./watt.
Claim 10
Dependent Claim
123 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the heat conductivity resistance of the material is less than 0.3 m 2 °K./watt.
Claim 11
Dependent Claim
22 words
The vehicle seat according to claim 6, wherein the heat conductivity resistance of the material is less than 0.1 m 2 °K./watt.
Claim 12
Dependent Claim
134 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the material forming the wall comprises at least two layers and the layer forming the support surface is formed by a textile upholstery covering material.
Claim 13
Dependent Claim
134 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the material forming the wall comprises at least two layers and the layer forming the support surface is formed by a textile upholstery covering material.
Claim 14
Dependent Claim
25 words
The vehicle seat according to claim 8, wherein the layer directly adjacent the upholstery covering material is formed by a mat, preferably a wool mat.
Claim 15
Dependent Claim
40 words
The vehicle seat according to claim 8, wherein the layer immediately adjacent the upholstery covering material is formed by a foam material which is preferably connected with the upholstery covering material by means of one of gluing and heat lamination.
Claim 16
Dependent Claim
20 words
The vehicle seat according to claim 8, wherein the layer forming the channel boundary wall is formed by a webbing.
Claim 17
Dependent Claim
20 words
The vehicle seat according to claim 11, wherein the webbing forms at least a portion of a flat upholstery element.
Claim 18
Dependent Claim
126 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the material forming the wall is supported on at least one spacer element arranged in the channel.
Claim 19
Dependent Claim
126 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the material forming the wall is supported on at least one spacer element arranged in the channel.
Claim 20
Dependent Claim
17 words
The vehicle seat according to claim 12, wherein each spacer element is formed as a resilient element.
Claim 21
Dependent Claim
30 words
The vehicle seat according to claim 13, wherein the spacer element is formed by one of a flexible, pressure-stable synthetic fiber and metal wire webbing, each having low air resistance.
Claim 22
Dependent Claim
118 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the channel is free of supports and spacer elements.
Claim 23
Dependent Claim
118 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, wherein the channel is free of supports and spacer elements.
Claim 24
Dependent Claim
121 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, having a regulating device which influences the air flow rate through the channel.
Claim 25
Dependent Claim
121 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, having a regulating device which influences the air flow rate through the channel.
Claim 26
Dependent Claim
22 words
The vehicle seat according to claim 17, wherein the regulating device also influences the temperature of the air flowing through the channel.
Claim 27
Dependent Claim
123 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, having a regulating device which influences the temperature of the air flowing through the channel.
Claim 28
Dependent Claim
123 words
A vehicle seat having a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel, through which air flows, wherein said wall is at least substantially impermeable to air at the pressure prevailing in the channel, and said wall comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop, having a regulating device which influences the temperature of the air flowing through the channel.
Claim 29
Dependent Claim
15 words
The vehicle seat according to claim 17, wherein the regulating device has a moisture sensor.
Claim 30
Dependent Claim
16 words
The vehicle seat according to claim 18, wherein the regulating device also has a temperature sensor.
Claim 31
Dependent Claim
15 words
The vehicle seat according to claim 19, wherein the regulating device has a temperature sensor.
Claim 32
Dependent Claim
16 words
The vehicle seat according to claim 21, wherein the regulating device also has a moisture sensor.
References Cited (Backward Citations)
DE1123220B
Cited
US3136577A
Cited
US3681797A
Cited
US3822425A
Cited
US3738702A
Cited
US4006604A
Cited
US4185341A
Cited
DE7923055U1
Cited
DE3423657A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |