Retractable speed bump
US7011470B1 · kind B1 · utility
39Cited by
12References
23Claims
0Family size
Inventors
Key dates
| Filing date | Mar 29, 2004 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Mar 29, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/529
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A retractable speed bump helps control the speed of a vehicle traveling through a special speed zone such as a school zone or a road construction site. A housing is either buried in the roadway or is placed into a ramp that seats on top of the roadway, the housing having a retractable canister therein, which canister extends above the housing in response to the speed of a vehicle as detected by a speed sensor. The greater the speed of the vehicle, the greater the level of extension of the canister. The canister may have tire shredding spikes or explosive charges therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.