Patent US1502054A successfully refreshed from Google Patents.
US5657831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passenger protecting apparatus and actuating apparatus therefor
Assignee: Mitsubishi Electric Corp
•
Filing: 1995-11-28
•
Granted: 1997-08-19
•
Expires: 2015-11-28
Abstract
Abstract An actuating apparatus for a passenger protecting apparatus the characteristics of which are easily adjusted, and which is small in size, and the cost of which can be suppressed to be inexpensive, has a comparatively simple construction, that is to say, is constructed to combine a mechanical acceleration switch having no mechanism for holding the states of the contacts thereof with electric circuits such as an integrating circuit, a comparing circuit and the like for controlling a semiconductor switch in the igniting circuit thereof.
Inventors
- 👤 Takashi Furui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:44
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/01; B60R21/013; B60R21/0132; B60R21/0133; B60R21/02; B60R21/16; B60R21/01332; B60R21/017; G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/135
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
An actuating apparatus for a passenger protecting device, comprising: a first deceleration detecting circuit comprising an analog acceleration sensor connected to a microprocessor, the output of said microprocessor controlling a first switch; a second deceleration detecting circuit having response characteristics different from the first deceleration detecting circuit, comprising: a mechanical acceleration sensor; an integrator receiving and integrating the output of the mechanical acceleration sensor; a comparator receiving and comparing the output of the integrator to a reference signal, the output of the comparator controlling a second switch; wherein a squib is serially connected between said first and second switches.
Claim 2
Dependent Claim
99 words
An actuating apparatus for a passenger protecting device, comprising: a first deceleration detecting circuit comprising an analog acceleration sensor connected to a microprocessor, the output of said microprocessor controlling a first switch; a second deceleration detecting circuit having response characteristics different from the first deceleration detecting circuit, comprising: a mechanical acceleration sensor; an integrator receiving and integrating the output of the mechanical acceleration sensor; a comparator receiving and comparing the output of the integrator to a reference signal, the output of the comparator controlling a second switch; wherein a squib is serially connected between said first and second switches.
Claim 3
Dependent Claim
31 words
The actuating apparatus of claim 1, wherein the output of said comparator further controls a third switch, and wherein a second squib is serially connected between said first and third switches.
Claim 4
Dependent Claim
113 words
An actuating apparatus for a passenger protecting device, comprising: a first deceleration detecting circuit comprising: an analog acceleration sensor connected to a microprocessor, the output of said microprocessor controlling a first switch; a second deceleration detecting circuit having response characteristics different from the first deceleration detecting circuit, comprising: a mechanical acceleration sensor; an integrator receiving and integrating the output of the mechanical acceleration sensor; a comparator receiving and comparing the output of the integrator to a reference signal; a one-shot timer circuit receiving the output of the comparator and controlling a second switch in accordance with the output of the comparator; wherein a squib is serially connected between said first and second switches.
Claim 5
Dependent Claim
113 words
An actuating apparatus for a passenger protecting device, comprising: a first deceleration detecting circuit comprising: an analog acceleration sensor connected to a microprocessor, the output of said microprocessor controlling a first switch; a second deceleration detecting circuit having response characteristics different from the first deceleration detecting circuit, comprising: a mechanical acceleration sensor; an integrator receiving and integrating the output of the mechanical acceleration sensor; a comparator receiving and comparing the output of the integrator to a reference signal; a one-shot timer circuit receiving the output of the comparator and controlling a second switch in accordance with the output of the comparator; wherein a squib is serially connected between said first and second switches.
Claim 6
Dependent Claim
31 words
The actuating apparatus of claim 3, wherein the output of said comparator further controls a third switch, and wherein a second squib is serially connected between said first and third switches.
Claim 7
Dependent Claim
133 words
An actuating apparatus for a passenger protecting device, comprising: a first deceleration detecting circuit comprising an analog acceleration sensor connected to a microprocessor; a second deceleration detecting circuit having response characteristics different from the first deceleration detecting circuit, comprising: a mechanical acceleration sensor; an integrator receiving and integrating the output of the mechanical acceleration sensor; a comparator receiving and comparing the output of the integrator to a reference signal; wherein said actuating apparatus further comprises: an AND gate receiving the outputs of the first and second deceleration detecting circuits and controlling a first switch in accordance with said outputs; a NAND gate receiving the outputs of the first and second deceleration detecting circuits and controlling a second switch in accordance with said outputs; a squib serially connected between said first and second switches.
Claim 8
Dependent Claim
133 words
An actuating apparatus for a passenger protecting device, comprising: a first deceleration detecting circuit comprising an analog acceleration sensor connected to a microprocessor; a second deceleration detecting circuit having response characteristics different from the first deceleration detecting circuit, comprising: a mechanical acceleration sensor; an integrator receiving and integrating the output of the mechanical acceleration sensor; a comparator receiving and comparing the output of the integrator to a reference signal; wherein said actuating apparatus further comprises: an AND gate receiving the outputs of the first and second deceleration detecting circuits and controlling a first switch in accordance with said outputs; a NAND gate receiving the outputs of the first and second deceleration detecting circuits and controlling a second switch in accordance with said outputs; a squib serially connected between said first and second switches.
Claim 9
Dependent Claim
34 words
The actuating apparatus of claim 5, wherein said second deceleration detecting circuit further comprises a one-shot timer circuit receiving the output of the comparator and sending an output to said AND and NAND gates.
References Cited (Backward Citations)
US2402111A
Cited
US3622974A
Cited
US5204547A
Cited
US5021678A
Cited
US5031931A
Cited
US5182459A
Cited
US5283472A
Cited
US5320382A
Cited
JPH05278558A
Cited
US5306883A
Cited
US5424501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-18 | 2001-02-17 | 2001-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-18 | 2005-02-17 | 2005-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-18 | 2009-02-17 | 2009-08-19 | $7700.00 | Window Closed / Lapsed |