Asphalt roadway paving methods and apparatus
US11959234B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2023 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Aug 28, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides improved paving vehicles for following a supply truck for use in paving asphalt roadways. The paving vehicles of the present invention need not be transported on a trailer, and are capable of traveling at low or relatively high speeds on their own. This is accomplished through the use of novel chassis and propulsion systems having two rear axles, with each axle coupled directly to its own hydraulic motor, such that each of the two hydraulic motors provides power to one axle. Embodiments of the invention also include reciprocating conveyor apparatus and methods, such that the conveyor apparatus may be moved to a lowered position to receive the gravity discharge of materials from a hopper and supply truck during a paving operation, and moved to a raised position in order to provide a wide margin of ground clearance when driving the paving vehicle, or loading or unloading the paving vehicle from a trailer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.