The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1993
Filed:
Jun. 26, 1992
William E Estep, Powellton, WV (US);
Robert J Stephens, Charlton Heights, WV (US);
Other;
Abstract
A monitor system detects and disables a vehicle driving the wrong way on a one-way road or traffic lane. An alarm warns the driver of the unsafe condition and operation of the vehicle four-way flasher warns other motorists. The system includes a light transmitter and receiver, and controls to disable the vehicle and operate the alarm and four-way flasher. Light is transmitted forward, where it may strike a reflector mounted on a post or other structure associated with the road or lane being monitored. Upon detecting reflected light, the system operates. The system is reset after operation by using the ignition switch to start the engine. Selection of reverse gear overrides the system, permitting a vehicle to back away from a directionally restricted road or traffic lane.