Patent US3744815A successfully refreshed from Google Patents.
US3744815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable gas cushion for the protection of vehicle passengers, especially motor vehicles
Assignee: Daimler Benz AG
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Filing: 1971-03-23
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Granted: 1973-07-10
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Expires: 1991-03-23
Abstract
Abstract An automatically inflatable gas cushion system for the protection of the passengers of vehicles, particularly of motor vehicles, in which the gas cushion is automatically inflated in case of accidents by means of a gas under high pressure which is released by a switch for filling the gas cushion upon exceeding a predetermined deceleration; the pressure in the gas cushion is again exhausted immediately thereafter while a second compressed gas supply is provided which can be released for a renewed inflation of the gas cushion only after the gas cushion has been once filled and exhausted beforehand.
Inventors
- 👤 Hans O Scherenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:17
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/01; B60R21/017; B60R21/02; B60R21/16; B60R21/26; B60R2021/165; B60R2021/26058; B60R21/261; B60R2021/2612
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
219 words
A gas cushion arrangement for the protection of passengers of vehicles in the event of excessive vehicle deceleration during collisions and the like; said arrangement comprising: inflatable gas cushion means, first compressed gas supply means, sensor means for sensing a first vehicle deceleration in excess of a predetermined value, first gas circuit means operatively connected To said sensor means and including means for communicating said first compressed gas supply means with said gas cushion means to inflate said gas cushion means in response to said first vehicle deceleration, exhaust means for exhausting gas from the gas cushion means after inflation of said gas cushion means, second compressed gas supply means, said sensor means including means for sensing a second vehicle deceleration in excess of a predetermined value, second gas circuit means operatively connected to said sensor means and including means for communicating said second compressed gas supply means with said gas cushion means to inflate said gas cushion means in response to said second vehicle deceleration, and gas circuit interconnecting means for preventing actuation of said second gas circuit means in response to said first vehicle deceleration, whereby said second compressed gas supply means is maintained intact for later inflation of said gas cushion means in the event of a further vehicle deceleration in excess of a predetermined value.
Claim 2
Dependent Claim
219 words
A gas cushion arrangement for the protection of passengers of vehicles in the event of excessive vehicle deceleration during collisions and the like; said arrangement comprising: inflatable gas cushion means, first compressed gas supply means, sensor means for sensing a first vehicle deceleration in excess of a predetermined value, first gas circuit means operatively connected To said sensor means and including means for communicating said first compressed gas supply means with said gas cushion means to inflate said gas cushion means in response to said first vehicle deceleration, exhaust means for exhausting gas from the gas cushion means after inflation of said gas cushion means, second compressed gas supply means, said sensor means including means for sensing a second vehicle deceleration in excess of a predetermined value, second gas circuit means operatively connected to said sensor means and including means for communicating said second compressed gas supply means with said gas cushion means to inflate said gas cushion means in response to said second vehicle deceleration, and gas circuit interconnecting means for preventing actuation of said second gas circuit means in response to said first vehicle deceleration, whereby said second compressed gas supply means is maintained intact for later inflation of said gas cushion means in the event of a further vehicle deceleration in excess of a predetermined value.
Claim 3
Dependent Claim
44 words
An arrangement according to claim 1, wherein said gas circuit interconnecting means includes a resetting means for maintaining said second compressed gas supply means independent from said sensor means until said gas cushion means has been inflated in response to said first vehicle deceleration.
Claim 4
Dependent Claim
51 words
An arrangement according to claim 2, wherein said sensor means includes means for producing an electrical ignition signal in response to said decelerations, and wherein said first and second gas circuit means include line means for communicating said signal to respective propellant charge means located in said respective gas supply means.
Claim 5
Dependent Claim
60 words
An arrangement according to claim 2, wherein said resetting means includes means for interconnecting said second gas circuit means between said second compressed gas supply means and said sensor means in response to gas back pressure formed in said first gas circuit during inflation of said gas cushion means by said first gas circuit and first compressed gas supply means.
Claim 6
Dependent Claim
51 words
An arrangement according to claim 4, wherein said resetting means includes a spring loaded piston member movable against the spring force by said gas back pressure, and a switch member attached to said piston member, said switch member being operable to interconnect said second gas supply means with said sensor means.
Claim 7
Dependent Claim
62 words
An arrangement according to claim 5, wherein said gas back pressure is communicated to said piston member by way of restricted orifice means such that movement of said switch member to the position interconnecting said second gas supply means with said sensor means is delayed until the signal associated with said first deceleration has been dissipated in said first gas circuit means.
Claim 8
Dependent Claim
51 words
An arrangement according to claim 5, wherein said sensor means includes means for producing an electrical ignition signal in response to said decelerations, and wherein said first and second gas circuit means include line means for communicating said signal to respective propellant charge means located in said respective gas supply means.
Claim 9
Dependent Claim
51 words
An arrangement according to claim 4, wherein said sensor means includes means for producing an electrical ignition signal in response to said decelerations, and wherein said first and second gas circuit means include line means for communicating said signal to respective propellant charge means located in said respective gas supply means.
Claim 10
Dependent Claim
51 words
An arrangement according to claim 1, wherein said sensor means includes means for producing an electrical ignition signal in response to said decelerations, and wherein said first and second gas circuit means include line means for communicating said signal to respective propellant charge means located in said respective gas supply means.
Claim 11
Dependent Claim
68 words
An arrangement according to claim 9, wherein in the initial condition an electrical connection exists between the sensor means and the propellant charge means of said first gas supply means, and wHerein said gas circuit interconnecting means includes means responsive to the pressure wave resulting from the outflow of gas from the first gas supply means to electrically connect said sensor means with said second gas supply means.
Claim 12
Dependent Claim
59 words
An arrangement according to claim 10, wherein said means responsive to said pressure wave includes means for delaying the electrical connection of said sensor means and said second gas supply means such that an electrical output signal from said sensor means corresponding to said first deceleration is inoperative to ignite the propellant charge of said second gas supply means.
References Cited (Backward Citations)
US3582107A
Cited
US3642303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |