US3871472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuator of motor vehicle safety device
Assignee: Nissan Motor Co Ltd
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Filing: 1973-02-22
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Granted: 1975-03-18
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Expires: 1993-02-22
Abstract
Abstract An actuator for actuating a safety device for a motor vehicle in which in the event that the motor vehicle encounters a collision, a rear seat confinement is first inflated through an instant collision sensor by the actuation of a rear seat detonating means and, some time after the inflation of the rear seat confinement, a front seat confinement is inflated through a delayed-action collision sensor by the actuation of a front seat detonating means. An electric power supply for energizing the actuator comprises not only a DC battery as a main power source but also an auxiliary power source such as a capacitor which is charged by the source voltage of the DC battery. The front seat detonating means may be actuated by the auxiliary power source even though the main power source happens to become inoperative for some cause or other.
Inventors
- 👤 Akio Hosaka
- 👤 Shunji Matsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:40
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/01; B60R21/017
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
191 words
An actuator of safety devices for a motor vehicle comprising: a main DC power source; a first series circuit connected across said power source and formed by an instant impact responsive collision sensor which is connected to a first electrically actuable detonating means; a second series circuit connected in parallel with said first series circuit and formed by a delayed-action impact responsive collision sensor which is connected to a second electrically actuable detonating means; and an auxiliary power source for actuating said second detonating means and comprising a first diode connected between one terminal of said main power source and said second series circuit, a series connection formed by a resistor having one terminal connected to a junction between said one terminal of said main power source and said first diode and a capacitor connected between the other terminal of said resistor and the other terminal of said main power source, and a second diode having one terminal connected to the other terminal of said resistor and with the other terminal of said second diode being connected to a junction between said first diode and said delayed-action impact responsive collision sensor.
Claim 2
Dependent Claim
191 words
An actuator of safety devices for a motor vehicle comprising: a main DC power source; a first series circuit connected across said power source and formed by an instant impact responsive collision sensor which is connected to a first electrically actuable detonating means; a second series circuit connected in parallel with said first series circuit and formed by a delayed-action impact responsive collision sensor which is connected to a second electrically actuable detonating means; and an auxiliary power source for actuating said second detonating means and comprising a first diode connected between one terminal of said main power source and said second series circuit, a series connection formed by a resistor having one terminal connected to a junction between said one terminal of said main power source and said first diode and a capacitor connected between the other terminal of said resistor and the other terminal of said main power source, and a second diode having one terminal connected to the other terminal of said resistor and with the other terminal of said second diode being connected to a junction between said first diode and said delayed-action impact responsive collision sensor.
Claim 3
Dependent Claim
95 words
An actuator as claimed in claim 1, which further comprises another auxiliary power source for actuating said first detonating means comprising a third diode connected between said one terminal of said main power source and said first series circuit, a series connection formed by another resistor having one terminal connected to a junction between said third diode and said first series circuit and a second capacitor connected between the other terminal of said another resistor and the other terminal of said main power source, and a fourth diode which is shunted by said another resistor.
References Cited (Backward Citations)
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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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |