Onboard weight indicator for vehicles
US4789033A · kind A · utility
Inventor
Key dates
| Filing date | Sep 28, 1987 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Sep 28, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An onboard device for determining the weight of a vehicle. A transducer is coupled at one end with a fixed point on the vehicle and is coupled at the other end with a single or tandem axle of the vehicle. The transducer measures the change in distance between the fixed point and the axle and sends an electrical signal to a display unit. The display unit processes the signal and displays the vehicle weight which corresponds to the signal received from the transducer. An upper carriage mounts the upper end of the transducer to the fixed point on the vehicle. A lower carriage couples the lower end of the transducer with the axle. Telescoping pipes shield the transducer. A grade compensating device corrects the signal generated by the transducer to compensate for nonlevel surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.