Truck trailer steering apparatus
US6152475A · kind A · utility
26Cited by
6References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jun 22, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Jun 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D13/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A converter dolly replaces the rear wheels of a truck trailer to provide the trailer with a steering ability about its rear wheels. The converter dolly is modified to include a hydraulic actuating system, including a piston, cylinder, and pump assembly, which act upon the tongue of the converter dolly to pivot the converter dolly about a king pin. The actuation of the hydraulic system is performed by the driver of the tractor towing the trailer through a control system mounted in the tractor cab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.