US3795414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable safety devices for protecting the drivers of motor vehicles
Assignee: Automobiles Peugeot SA
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Filing: 1971-11-08
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Granted: 1974-03-05
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Expires: 1991-11-08
Abstract
Abstract This safety device comprises an inflatable air-bag interposed between the passenger and one portion of the passenger compartment of a vehicle, wherein the surface portion of the airbag which is to engage the passenger in case of crash forms an acute dihedral angle with a vertical plane of reference. The aforesaid dihedral angle is directed forwards in relation to the passenger, and the interior of the surface portion of the bag which is to engage the passenger in case of crash is subjected to two unequal fluid pressures of which the highest is exerted at least in the air-bag portion nearest to the passenger.
Inventors
- 👤 P Ventre
- 👤 J Lacambre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:04
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/231; B60R21/233; B60R21/20; B60R21/203; B60R21/2032; B60R2021/0002; B60R2021/0009; B60R2021/23324; B60R21/26; B60R2021/26058; B60R21/2334; B60R21/2346
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A device for retaining the passengers of a vehicle and protecting them in case of a crash comprising: a cylindrical inflatable air-bag interposed between the passenger and one portion of the vehicle compartment, said airbag having a peripheral ring-shaped chamber which first engages the passenger being retained and which is adapted to be inflated at a high pressure and an independent central cylindrical chamber adapted to be inflated separately at a lower pressure, said air-bag having a surface which engages the passenger, said surface being directed forward of a reference vertical plane and forming an acute dihederal angle with said vertical reference plane, and means to simultaneously and separately inflate said peripheral chamber at a higher pressure than said central chamber.
Claim 2
Independent Claim
121 words
A device for retaining the passengers of a vehicle and protecting them in case of a crash comprising: a cylindrical inflatable air-bag interposed between the passenger and one portion of the vehicle compartment, said airbag having a peripheral ring-shaped chamber which first engages the passenger being retained and which is adapted to be inflated at a high pressure and an independent central cylindrical chamber adapted to be inflated separately at a lower pressure, said air-bag having a surface which engages the passenger, said surface being directed forward of a reference vertical plane and forming an acute dihederal angle with said vertical reference plane, and means to simultaneously and separately inflate said peripheral chamber at a higher pressure than said central chamber.
Claim 3
Dependent Claim
26 words
A device according to claim 1, wherein the inflated central chamber has a frustoconical configuration with its major base directed towards the passenger of the vehicle.
Claim 4
Dependent Claim
15 words
A device according to claim 1, wherein the lowest pressure is equal to atmospheric pressure.
Claim 5
Independent Claim
163 words
A device for retaining the passengers of a vehicle and protecting them in case of a crash comprising: a cylindrical inflatable air-bag interposed between the passenger and one portion of the vehicle compartment. said air-bag having a peripheral ring-shaped chamber which first engages the passenger being retained and which is adapted to be inflated at a pressure greater than atmospheric pressure and an independent central cylindrical chamber adapted to be inflated separately at atmospheric pressure and having a frustoconical configuration with its major base directed towards the passenger of the vehicle when inflated, said air-bag having a surface which engages the passenger, said surface being directed forward of a reference vertical plane and forming an acute dihederal angle with said vertical reference plane, means to simultaneously and separately inflate said peripheral chamber and said central chamber, and strips adapted to impart an ideal shape thereto when inflated, so as to compensate the effect of an excessive pressure of the fluid in the chamber.
Claim 6
Independent Claim
163 words
A device for retaining the passengers of a vehicle and protecting them in case of a crash comprising: a cylindrical inflatable air-bag interposed between the passenger and one portion of the vehicle compartment. said air-bag having a peripheral ring-shaped chamber which first engages the passenger being retained and which is adapted to be inflated at a pressure greater than atmospheric pressure and an independent central cylindrical chamber adapted to be inflated separately at atmospheric pressure and having a frustoconical configuration with its major base directed towards the passenger of the vehicle when inflated, said air-bag having a surface which engages the passenger, said surface being directed forward of a reference vertical plane and forming an acute dihederal angle with said vertical reference plane, means to simultaneously and separately inflate said peripheral chamber and said central chamber, and strips adapted to impart an ideal shape thereto when inflated, so as to compensate the effect of an excessive pressure of the fluid in the chamber.
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |