Method for thawing out road culverts choked with ice
US4770211A · kind A · utility
18Cited by
5References
4Claims
0Family size
Inventor
Key dates
| Filing date | Oct 24, 1986 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Oct 24, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F5/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method for clearing a road culvert or the like which is choked with ice, wherein a substantially homogeneous rope of a material having at least a certain reversible extensibility is extended through the culvert from its inlet side to its outlet side and wherein the rope in its unloaded condition is clamped in connection with the outlet side and the inlet side respectively of the culvert so that the rope extends through the culvert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.