Method and apparatus for electrically heating a screed assembly in a paving machine
US6318928A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C2301/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A paving machine employs an electrically heated screed assembly to uniformly heat a screed plate of the machine. Uniform heating is achieved by inserting a thermally conductive plate between electrical heating elements and the screed plate. An insulation layer may be provided above the heating elements to direct the heat downward into the thermally conductive plate. The heat spreads relatively uniformly throughout the thermally conductive plate, thereby uniformly heating the screed plate. A clamping mechanism is also provided that, when tightened, provides a compressive force, thereby holding the assembly in place. When released, the pressure is alleviated, thus permitting a heating element to be removed for repair or replacement without the need to remove the screed plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.