Retractable speed bump

Details Retractable speed bump Retractable speed bump

2006-03-14

2006-03-14

Addie, Raymond W (Department: 3671)

Road structure, process, or apparatus

Traffic director

Yielding

C404S009000, C404S010000, C404S015000

Reexamination Certificate

active

07011470

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.

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patent: 5904443 (1999-05-01), Soleau
patent: 6010277 (2000-01-01), Follman
patent: 6099200 (2000-08-01), Pepe et al.
patent: 2005/0031411 (2005-02-01), Hensley

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