Citylift

Details Citylift Citylift

1997-11-12

1999-11-02

Will, Thomas B.

Road structure, process, or apparatus

Traffic steering device or barrier

404 9, 49131, 49133, E02B 1100, E05F 1304, E01F 1300, E01F 900

Patent

active

059757922

ABSTRACT:
The present invention relates to an improved security control barrier for use in controlling ingress and egress to entranceways, exit ways, driveways, and parking spots. The device consists of a telescoping bollard inserted into a casing imbedded below ground and a locking mechanism for securing the telescoping bollard in the extended and retracted positions. The invention also serves as an effective anti-theft device.

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patent: 5639178 (1997-06-01), Wilson et al.
patent: 5819471 (1998-10-01), Koerber

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