Security gate

Details Security gate Security gate

1993-06-17

1994-12-20

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

With mounting or supporting means

E05D 1526

Patent

active

053738870

ABSTRACT:
A security gate for protecting an opening in a building such as a door, window or the like comprises an upper guide-way which extends along the length of the opening an elongated vertical rods which extend across the opening with horizontal links pivotally connecting the rods. Roller are connected to every four uppermost link. The rollers engage in the upper guide-way so that the gate can be moved easily.

REFERENCES:
patent: 1290176 (1919-01-01), Griffith
patent: 1654857 (1928-01-01), Brady
patent: 1864796 (1932-06-01), Brady
patent: 1945729 (1934-02-01), Callender
patent: 2493815 (1950-01-01), Guilbert
patent: 2898988 (1959-08-01), Zoll
patent: 2940520 (1960-06-01), Cookson et al.
patent: 3231005 (1966-01-01), Cookson et al.
patent: 3490514 (1970-01-01), Duncan et al.
patent: 3601175 (1971-08-01), Wardlaw

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