Back to results
US 4,358,272 AGranted
Motor-vehicle driving instruction and testing apparatus
OwnerMichel Gurtnerinventor
Life of this patent
Estimating the term…
Abstract
The apparatus measures the braking of the vehicle and the turning action on the wheels, secondarily the speed and the acceleration or the running of the engine. It records these measurements graphically and simultaneously so that, if necessary, the driver may correct his mistakes. A warning is activated if the vehicle is braked and its wheels are turned at the same time. This warning is graphic, audible or visual. The apparatus is useful for driving instruction and tests.
Claims6
A motor vehicle driving instruction and testing apparatus, comprising, in combination:
- a disc rotating as a function of time;
- means for measuring the turning of the wheels of said vehicle;
- warning means activated when said vehicle is simultaneously braked and said wheels are turned;
- recording means for graphically and simultaneously recording combined braking and turning actions;
- said recording means comprising stylographs adapted to place markings on said disc.
2 more elements
Dependencies are inferred from the claim text.