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 Title: |
US6765483:
Method and apparatus for locking and unlocking brake lights
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Naqvi, Syed Muhammad Ali; Karachi, Pakistan 74700
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| Assignee: |
None
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| Published / Filed: |
2004-07-20
/ 2002-06-13
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| Application Number: |
US2002000171433
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| IPC Code: |
Advanced:
B60Q 1/44;
Core:
more...
IPC-7:
B60Q 1/44;
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| ECLA Code: |
B60Q1/44G;
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| U.S. Class: |
340/479;
340/464;
340/467;
340/468;
307/010.8;
180/282;
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| Field of Search: |
340/479,464,438,467,468,471,475
307/10.8,10.1
200/61.89
180/282
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| Priority Number: |
| 2002-06-13 |
US2002000171433 |
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| Abstract: |
The present invention addresses the need to sustain brake lights illumination of a motor vehicle at substantially stationary state even after brake pedal is released in order to ensure traffic safety. This device employs a number of commonly available relays not only to sustain the power to the brake lights but also to monitor the state of the movement of the vehicle. The circuit is largely composed of three main sections: a power supply relay, a latching-unlatching relays and a sensor array. One common type of relays can be used to all three of these parts. Different from prior arts in this matter, no sensor on a power shaft is needed, although such device can be accommodated. Instead, simple tilting type mercury switches are used for sensing the acceleration of a vehicle. This device can be integrated with many other motion sensing devices. These sensor actions can also be blocked or supplemented by the engagement of the parking brake or the cruise control. This device can be manufactured and installed originally in the factory, or can be installed by a user with a few tools economically.
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| Attorney, Agent or Firm: |
Kroll, Michael I. ;
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| Primary / Asst. Examiners: |
La, Anh V.;
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| Family: |
None
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First Claim:
Show all 6 claims |
What is claimed is:
1. A sustained brake lights illumination device for a motor vehicle having a number of brake lights, a brake pedal, a brake pedal switch, a parking brake, a parking brake switch, a battery, and an ignition switch as well as an optional L. E. D. indicator on a dashboard and an optional cruise control comprising:
- a) a latching relay, which delivers and sustains power from said battery to said brake lights upon the depression of said brake pedal;
- b) sensing means for detecting the state of the movement of said motor vehicle and deactivating said latching relay by permitting, blocking or supplementing the control voltage according to a predetermined priority;
- c) second means for directing power from said battery to said latching relay as well as to said sensing means in accordance with the action of said ignition switch; and
- d) said latching relay comprises the relay 2 and relay 3, both of which are 12 V, 5-pin relays, wherein constant positive voltage from said battery is supplied to terminal 2E; additional positive voltage from said battery is supplied to the terminal 3C by said second means upon the activation of said ignition switch; negative voltage from said battery is applied to the terminal 3E by said second means upon the activation of said ignition switch, wherein the terminals 2B and 2C are connected; the terminals 2D and 3A are connected, wherein the terminal 2B, said brake lights and said optional L. E. D. are connected, to which said brake pedal switch is attached leading from the positive terminal of said battery, wherein, upon the closing of said brake switch following the depression of said brake pedal, said relay 2 is activated and remain activated even after the release of said brake pedal until relay 3 is activated by receiving control voltage from said sensing means at the terminal 3D, thereby deactivating said relay 2.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 1 U.S. patent(s) that reference this one
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