Device for melting and applying thermoplastic material to surface
US10883232B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2015 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Jan 18, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/222
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pavement striping devices for heating and applying thermoplastic material to a road surface is provided. The pavement striping device includes of: a hopper for holding a supply of particulate thermoplastic marking material in a non-molten state, an air or oil-heat transfer medium melting kettle having a series of coaxial conveyored or unconveyored conduits within, a plastic extruder for transporting the thermoplastic particulate from the hopper to the series of coaxial conveyored or unconveyored conduits with the air or oil-heat transfer medium melting kettle, a heating mechanism for heating the air or oil-heat transfer medium melting kettle and the plastic extruder to a temperature suitable for melting thermoplastic, and a means for driving the stream of molten thermoplastic through the series of coaxial conveyored or unconveyored conduits to a sprayer or extrusion die, all of which form a means by which the molten thermoplastic is directed to the pavement surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.