US3810520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic damping device for braking a vehicle
Assignee: Tokai Rika Co Ltd
•
Filing: 1971-12-28
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Granted: 1974-05-14
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Expires: 1991-12-28
Abstract
Abstract The present disclosure is directed to an automatic damping device for use in vehicles, said device being activated by collision of the vehicle and without the operation of the brake pedal by the driver. In a further embodiment of the present disclosure, the damping condition of the vehicle can be obtained and maintained in a collision situation as soon as the driver depresses the brake pedal. The function of the device does not interfere with the regular braking operation so as to insure the regular braking operation under normal operating conditions.
Inventors
- 👤 M Iwata
- 👤 T Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:16
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60T7/22; B60T7/14; B60T2201/00; B60T2201/02; B60T2201/024
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
112 words
An automatic brake-activating apparatus for use in a vehicle which comprises a brake means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal rapid deceleration of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means including timing means adapted to close through said electrical connection and maintain a closed position for a fixed period of time and driving unit means operatively associated with the brake means and electrically connected to the control unit switch means for operating said brake means, said driving unit means being automatically actuated in response to said control unit switch means.
Claim 2
Dependent Claim
112 words
An automatic brake-activating apparatus for use in a vehicle which comprises a brake means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal rapid deceleration of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means including timing means adapted to close through said electrical connection and maintain a closed position for a fixed period of time and driving unit means operatively associated with the brake means and electrically connected to the control unit switch means for operating said brake means, said driving unit means being automatically actuated in response to said control unit switch means.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1, wherein a manually operated brake pedal is also operatively associated with the brake means.
Claim 4
Dependent Claim
20 words
The apparatus of claim 1, wherein the drive unit means comprises a solenoid means and a plurality of lever means.
Claim 5
Dependent Claim
19 words
The apparatus of claim 1, wherein a power supply means is in operative communication with the acceleration switch means.
Claim 6
Dependent Claim
114 words
An automatic brake-actuating apparatus for use in a vehicle which comprises a brake means containing a hydraulic circuit means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal condition of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means including timing means adapted to close through said electrical connection and maintain a closed position for a fixed period of time, and valve means disposed in the hydraulic circuit means and electrically connected with the control unit switch means said valve means being automatically actuated in response to said control unit switch means for operating the brake means.
Claim 7
Dependent Claim
114 words
An automatic brake-actuating apparatus for use in a vehicle which comprises a brake means containing a hydraulic circuit means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal condition of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means including timing means adapted to close through said electrical connection and maintain a closed position for a fixed period of time, and valve means disposed in the hydraulic circuit means and electrically connected with the control unit switch means said valve means being automatically actuated in response to said control unit switch means for operating the brake means.
Claim 8
Dependent Claim
19 words
The apparatus of claim 5, wherein a manually operated brake pedal is also operatively associated with the brake means.
Claim 9
Dependent Claim
15 words
The apparatus of claim 5, wherein the valve means is an electromagnetic check valve means.
Claim 10
Dependent Claim
19 words
The apparatus of claim 5, wherein a power supply means is in operative communication with the acceleration switch means.
Claim 11
Dependent Claim
143 words
An automatic brake-actuating apparatus for use in a vehicle which comprises a brake means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal rapid deceleration of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means being adapted to close through said electrical connection and maintain a closed position for a fixed period of time, and driving unit means including a solenoid means and a plurality of lever means operatively associated with the brake means and electrically connected to the control unit switch means for operating said brake means, said solenoid means automatically actuating the plurality of lever means and thus the brake means in response to the control unit switch means, the closing of said control unit switch means also electrically actuating a collision shock-absorbing device.
Claim 12
Dependent Claim
143 words
An automatic brake-actuating apparatus for use in a vehicle which comprises a brake means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal rapid deceleration of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means being adapted to close through said electrical connection and maintain a closed position for a fixed period of time, and driving unit means including a solenoid means and a plurality of lever means operatively associated with the brake means and electrically connected to the control unit switch means for operating said brake means, said solenoid means automatically actuating the plurality of lever means and thus the brake means in response to the control unit switch means, the closing of said control unit switch means also electrically actuating a collision shock-absorbing device.
Claim 13
Dependent Claim
151 words
An automatic brake-activating apparatus for use in a vehicle which comprises a brake means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal rapid deceleration of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means being adapted to close through said electrical connection and maintain a closed position for a fixed period of time, a collision shock-absorbing device in operative communication with the control unit switch means, said collision shock-absorbing device comprising a percussion lock in communication with an air bag, said percussion lock being actuated by thE closing of the control unit switch means and driving unit means operatively associated with the brake means and electrically connected to the control unit switch means for operating said brake means, said driving unit means being automatically actuated in response to said control unit switch means.
Claim 14
Dependent Claim
151 words
An automatic brake-activating apparatus for use in a vehicle which comprises a brake means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal rapid deceleration of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means being adapted to close through said electrical connection and maintain a closed position for a fixed period of time, a collision shock-absorbing device in operative communication with the control unit switch means, said collision shock-absorbing device comprising a percussion lock in communication with an air bag, said percussion lock being actuated by thE closing of the control unit switch means and driving unit means operatively associated with the brake means and electrically connected to the control unit switch means for operating said brake means, said driving unit means being automatically actuated in response to said control unit switch means.
Claim 15
Dependent Claim
153 words
An automatic brake-actuating apparatus for use in a vehicle which comprises a brake means containing a hydraulic circuit means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal condition of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means being adapted to close through said electrical connection and maintain a closed position for a fixed period of time, a collision shock-absorbing device in operative communication with the control unit switch means, said collision shock-absorbing device comprising a percussion lock in communication with an air bag, said percussion lock being actuated by the closing of the control unit switch means, and valve means disposed in the hydraulic circuit means and electrically connected with the control unit switch means, said valve means being automatically actuated in response to said control unit switch means for operating the brake means.
Claim 16
Dependent Claim
153 words
An automatic brake-actuating apparatus for use in a vehicle which comprises a brake means containing a hydraulic circuit means for braking the vehicle, an acceleration switch means adapted to close upon the detection of an abnormal condition of the vehicle, control unit switch means electrically connected with the acceleration switch means, said control unit switch means being adapted to close through said electrical connection and maintain a closed position for a fixed period of time, a collision shock-absorbing device in operative communication with the control unit switch means, said collision shock-absorbing device comprising a percussion lock in communication with an air bag, said percussion lock being actuated by the closing of the control unit switch means, and valve means disposed in the hydraulic circuit means and electrically connected with the control unit switch means, said valve means being automatically actuated in response to said control unit switch means for operating the brake means.
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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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |