Anti theft system for motor vehicles and the like
US4805722A · kind A · utility
Inventors
Key dates
| Filing date | Jun 26, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Jun 26, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An anti theft vehicle system for motor vehicles and the like is provided which uses a magnetically or optically encoded card inserted into a card reader mounted in the vehicle to limit operation of the vehicle. The vehicle ID number is stored in a control computer along with continuously updated date and time. If the vehicle ID of the card and computer match, and the data and time are within the authorized operation date and time encoded on the card, the vehicle will operate. The remaining time of authorized use is displayed. If there is no match the vehicle ignition and fuel line are blocked and hood is locked thereby foiling any attempt to circumvent this security system by bypassing it. Should the operator inadvertently leave the card in the reader while attempting to leave the vehicle the vehicle ignition will continue to operate until the card is removed thereby reminding the operator to remove the card. Additional data may be encoded upon the card for purposes of accounting or inventory control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.