Communications: electrical – Land vehicle alarms or indicators – External signal light system
Patent
1998-05-07
1999-10-19
Wu, Daniel J.
Communications: electrical
Land vehicle alarms or indicators
External signal light system
340468, 340463, 307 101, 307 108, B60Q 152
Patent
active
059696036
ABSTRACT:
A door opening warning system device actuatable when a door of a car is going to be opened, including a non-remote control type contact switch for providing a "POWER OFF" signal, a flash signal power feed controller, a contact switch for providing a "POWER OFF" signal, a flash device and warning lights. The non-remote control type contact switch may be installed at the ignition key or other suitable positions of the car. The flash signal power feed controller and the contact switch for providing the "POWER OFF" signal are connected via circuitry to the flash device and warning lights of the car. When the ignition key is turned to an "OFF" position or contact switches of other warning system devices are contacted before the driver opens the door to get off, power is connected to cause the warning lights to flash. When the doors are closed or locked, the contact switch for providing a "POWER OFF" signal will be actuated to cut off power supply. A power cut delay device may replace the non-remote control type contact switch and the flash signal power feed controller. The system device ensures the safety of the driver/passengers getting off a car and the car coming behind it.
REFERENCES:
patent: 4249160 (1981-02-01), Chilvers
patent: 4833448 (1989-05-01), Chang
patent: 4965546 (1990-10-01), Chang
Lieu Julie B.
Wu Daniel J.
LandOfFree
Door opening warning system device for cars does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Door opening warning system device for cars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Door opening warning system device for cars will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2061340