Grille for security institutions

Details Grille for security institutions Grille for security institutions

1993-11-04

1994-12-27

Cuomo, Peter M.

Movable or removable closures

With protective grille or safety guard

52473, 454 82, E06B 368

Patent

active

053753739

ABSTRACT:
A grille for security institutions consists of a body having two opposed faces. At least one passage extends through the body between the opposed faces. The passage has at least two changes in direction defining a generally zig zag course. When a rope is inserted into the passage the series of direction changes severely limit the ability of a person to thread the rope through the passage.

REFERENCES:
patent: 68076 (1867-08-01), Hoffman
patent: 1400860 (1921-12-01), Brown
patent: 1673906 (1928-06-01), Fager
patent: 1703437 (1929-02-01), Wills
patent: 2354466 (1944-07-01), Levinsen
patent: 3125196 (1964-03-01), Fenner
patent: 4189990 (1980-02-01), Kittler
patent: 4911066 (1990-03-01), Carew

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