Electronic trailer guide
US5097250A · kind A · utility
Inventor
Key dates
| Filing date | Jan 25, 1991 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Jan 25, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S280/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electronic trailer guide includes sensors and associated logic and display circuitry that serve to present information to the driver of a towing vehicle as to the direction in which he must turn the steering wheel of the towing vehicle to back a trailer into a desired position, as to whether the trailer is tilted to the left or to the right, as to whether, when backing a boat trailer down a boat ramp into a body of water preparatory to launching a boat, the water level has risen to a point beneath the towing vehicle at which there is a risk of damage to the vehicle and, as to whether, when backing a boat trailer down a boat ramp into a body of water, the water has buoyantly lifted the boat off of the trailer so that it may be launched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.