Portable security grill apparatus

Details Portable security grill apparatus Portable security grill apparatus

1994-02-07

1995-09-05

Redman, Jerry

Movable or removable closures

With protective grille or safety guard

Removable

49 55, 49465, E06B 700

Patent

active

054469961

ABSTRACT:
A portable security grill apparatus which may be installed in window openings of buildings includes two rectangular grill sections longitudinally telescopically fastened to one another. Opposite longitudinal ends of the two grill sections have beams disposed perpendicularly to the axis of longitudinal telescoping movability of the two grill sections, the beams having flat outer surfaces adapted to abut a window edge at one end of the grill apparatus, and a window frame edge, at the other end of the apparatus. At least one toggle clamp connected between telescopically joined members of the two grill sections is capable of exerting a large outward extension force when in a closed, clamped position, thereby exerting compressive forces on the window and window frame sufficient to prevent the grill apparatus from being removed from the window opening.

REFERENCES:
patent: 560937 (1896-05-01), Ryan
patent: 2594864 (1952-04-01), Buckland et al.
patent: 2756469 (1956-07-01), Cattermole et al.
patent: 3163205 (1964-12-01), Gottlieb
patent: 4899490 (1990-02-01), Jokel
patent: 5131186 (1992-07-01), La Mont
patent: 5283976 (1994-02-01), La Mont

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