Auxiliary axle system for concrete pump truck
US7398981B1 · kind B1 · utility
7Cited by
36References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jul 4, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D61/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A concrete pumping truck having a forward end and a rear end with a hopper attached at the rear end of the concrete pumping truck comprises an auxiliary axle system pivotally attached to the rear end of the truck adjacent the hopper, the auxiliary axle system comprising a pair of pivotable wheels movable between a first position in contact with a ground surface and a second position elevated above the ground surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.