Patent US3859482A successfully refreshed from Google Patents.
US3859482A
Expired / Lapsed
US
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Mechanical pressure detecting device
Assignee: Nissan Motor Co Ltd
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Filing: 1972-02-24
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Granted: 1975-01-07
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Expires: 1992-02-24
Abstract
Abstract A mechanical pressure or collision detecting device is herein proposed, for being advantageously used in combination with a known decleration detector or an inertia-responsive switch in a vehicular safety arrangement which is adapted to protect a vehicle occupant from incurring an injury in the event of a collision of the motor vehicle. The deceleration detector is adapted to rapidly detecting the collision condition while the mechanical pressure detecting device is adapted to hold the safety arrangement in an inoperative condition if the shocks or collisions encountered by the motor vehicle are of the nature which is unlikely to invite a serious danger to the vehicle occupant. The mechanical pressure detecting device includes electrically conductive, mechanically deformable or rupturable means which may be either kept conducting under a normal condition or rendered conducting only when the collision is encountered by the motor vehicle. A method which is useful for mounting the mechanical pressure detecting device on a body structure of the motor vehicle is also disclosed. The collision detecting device, on the other hand, may include extensible structures having pressure sensing means attached at their leading ends and capable of protruding outwardly of the vehicle body in accordance with the driving speed of the motor vehicle. The collision detecting device may otherwise include switch means responsive to the initial collision condition, first switch means which is responsive to acceleration greater than a predetermined magnitude and second switch means to be actuated in accordance with a predetermined timing signal.
Inventors
- 👤 Shunji Matsui
- 👤 Kenzo Hirashima
- 👤 Yoshikazu Hayakawa
- 👤 Nagayuki Marumo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:59
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/14; H01H35/146; B; B60; B60R; B60R21/00; B60R21/01; B60R21/013; G; G06; G06K; G06K17/00; B60R21/0134; B60R2021/01345; B60R21/0136
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A mechanical pressure detecting device comprising electrically conductive means which is deformable by a mechanical pressure greater than predetermined magnitude which is applied to said detecting device to generate an electric signal, an insulating support element receiving therein said electrically conductive means and insulating the same, and a presser member shaped in the form of a plate and positioned to be in contact at an internal surface with an external surface of said insulating support element and directly receiving a mechanical pressure applied to said detecting device, said presser member being deformed when subjected to said mechanical pressure greater than said predetermined magnitude to deform said insulating support element thereby causing the deformation of said electrically conductive means and the generation of said electric signaL.
Claim 2
Dependent Claim
125 words
A mechanical pressure detecting device comprising electrically conductive means which is deformable by a mechanical pressure greater than predetermined magnitude which is applied to said detecting device to generate an electric signal, an insulating support element receiving therein said electrically conductive means and insulating the same, and a presser member shaped in the form of a plate and positioned to be in contact at an internal surface with an external surface of said insulating support element and directly receiving a mechanical pressure applied to said detecting device, said presser member being deformed when subjected to said mechanical pressure greater than said predetermined magnitude to deform said insulating support element thereby causing the deformation of said electrically conductive means and the generation of said electric signaL.
Claim 3
Dependent Claim
32 words
A mechanical pressure detecting device according to claim 1, in which said electrically conductive means comprises a conductor which is severable when subjected to a mechanical pressure greater than said predetermined magnitude.
Claim 4
Dependent Claim
40 words
A mechanical pressure detecting device according to claim 1, in which said electrically conductive means comprises an electrically conductive rupturable member connected to leads of electric lines and rupturable when subjected to a mechanical pressure greater than said predetermined magnitude.
Claim 5
Dependent Claim
168 words
A mechanical pressure detecting device comprising electrically conductive means which is deformable by a mechanical pressure greater than a predetermined magnitude which is applied to said detecting device for generating an electric signal, an insulating support element receiving therein said electrically conductive means and insulating same, and a pressure member surrounding said insulating support element and directly receiving said mechanical pressure applied to said detecting device, said insulating support element being deformed by said presser member when said presser member receives a mechanical pressure greater than said predetermined magnitude thereby causing the deformation of said electrically conductive means and the generation of said electric signal, in which said electrically conductive means comprises an electrically conductive rupturable member connected to leads of electric lines and rupturable when subject to a mechanical pressure greater than said predetermined magnitude, in which said electrically conductive rupturable member is made up of a glass tube which is coated with an electrically conductive layer and which is connected to said leads at spaced points.
Claim 6
Dependent Claim
168 words
A mechanical pressure detecting device comprising electrically conductive means which is deformable by a mechanical pressure greater than a predetermined magnitude which is applied to said detecting device for generating an electric signal, an insulating support element receiving therein said electrically conductive means and insulating same, and a pressure member surrounding said insulating support element and directly receiving said mechanical pressure applied to said detecting device, said insulating support element being deformed by said presser member when said presser member receives a mechanical pressure greater than said predetermined magnitude thereby causing the deformation of said electrically conductive means and the generation of said electric signal, in which said electrically conductive means comprises an electrically conductive rupturable member connected to leads of electric lines and rupturable when subject to a mechanical pressure greater than said predetermined magnitude, in which said electrically conductive rupturable member is made up of a glass tube which is coated with an electrically conductive layer and which is connected to said leads at spaced points.
Claim 7
Dependent Claim
26 words
A mechanical pressure detecting device according to claim 4, in which said glass tube is coated on the outer surface thereof with said electrically conductive layer.
Claim 8
Dependent Claim
26 words
A mechanical pressure detecting device according to claim 4, in which said glass tube is coated on the inner surface thereof with said electrically conductive layer.
Claim 9
Dependent Claim
148 words
A mechanical pressure detecting device comprising electrically conductive means which is deformable by a mechanical pressure greater than a predetermined mangitude which is applied to said detecting device for generating an electric signal, an insulating support element receiving therein said electrically conductive means and insulating same, and a pressure member surrounding said insulating support element and directly receiving said mechanical pressure applied to said detecting device, said insulating support element being deformed by said pressure member when said pressure member receives a mechanical pressure greater than said predetrmined magnitude thereby causing the deformation of said electrically conductive means and the generation of said electric signal, in which said electrically conductive means comprises an electrically conductive rupturable member connected to leads of electric lines and rupturable when subject to a mechanical pressure greater than said predetermined magnitude, in which said glass tube is internally maintained at a subatmospheric pressure.
Claim 10
Dependent Claim
148 words
A mechanical pressure detecting device comprising electrically conductive means which is deformable by a mechanical pressure greater than a predetermined mangitude which is applied to said detecting device for generating an electric signal, an insulating support element receiving therein said electrically conductive means and insulating same, and a pressure member surrounding said insulating support element and directly receiving said mechanical pressure applied to said detecting device, said insulating support element being deformed by said pressure member when said pressure member receives a mechanical pressure greater than said predetrmined magnitude thereby causing the deformation of said electrically conductive means and the generation of said electric signal, in which said electrically conductive means comprises an electrically conductive rupturable member connected to leads of electric lines and rupturable when subject to a mechanical pressure greater than said predetermined magnitude, in which said glass tube is internally maintained at a subatmospheric pressure.
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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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |