Clinton I Thompson

US Patent:

55097537, Apr 23, 1996

Filed:

Nov 22, 1994

Appl. No.:

8/343186

Inventors:

Clinton C. Thompson - Louisville KY

International Classification:

E01F 900

US Classification:

404 6

Abstract:

A motorized retractable speed bump or warning device wherein the raising and lowering of the retractile is controlled by multiple remote means from signals generated by traffic conditions. The motorized retractable speed bump, wherein a retractile comprising of bi-folding hinged plates, which are elevated to present a visible obstruction to motor vehicles, and a position restraining device, operated by rotary and or linear motor drive means, by on/off manual push button switching, or through a series of Programmable Logic Controllers, by way of analog or digital signals emanating from permanently mounted speed detecting devices.