Security barrier apparatus

Details Security barrier apparatus Security barrier apparatus

1995-07-06

1996-07-23

Kannan, Philip C.

Movable or removable closures

Distortable; e.g., flexible strand-type barricade

49 9, 49322, E01F 1300

Patent

active

055377785

ABSTRACT:
A security barrier apparatus suitable for use in residential, farm and industrial settings includes a motor, a chain and a brake mechanism for engaging the chain. The apparatus is mounted to a first support such as a post. The chain extends from the first support to a second spaced support and is raised and lowered relative to the ground by operation of the motor. The motor may be remotely actuated by an electronic transmitter. The apparatus further includes protective features to prevent damage to the motor in the event that a vehicle collides with the chain.

REFERENCES:
patent: 353368 (1886-11-01), Miller
patent: 484572 (1892-10-01), Rudert
patent: 1188866 (1916-06-01), Wexler
patent: 1277201 (1918-08-01), Doser
patent: 1832812 (1931-11-01), Keenan
patent: 2663103 (1953-12-01), Ellison
patent: 4333268 (1982-06-01), Dumbeck
patent: 4553739 (1985-11-01), Baines
patent: 5245787 (1993-09-01), Swenson et al.

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