Road surface deicing device
US3995965A · kind A · utility
6Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1976 |
| Grant date | Dec 7, 1976 |
| Priority date | — |
| Expiry date | Mar 31, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01D19/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A heating system includes fluid ducts at the surface of a road and heating fluid for deicing the road surface when circulated through the ducts. A pump device for circulating the heating fluid through the fluid ducts to deice the road surface comprises a fluid pump housed beneath the surface of the road and coupled to the fluid ducts. The fluid pump has a piston and an actuator plate coupled to the piston. The actuator is pivotally mounted at the surface of the road in a manner whereby the weight of a vehicle passing over the actuator plate operates the pump device to circulate the heating fluid through the fluid ducts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.