Positive lock for sliding closure

Details Positive lock for sliding closure Positive lock for sliding closure

1990-06-04

1991-02-19

Moore, Richard E.

Closure fasteners

Portable

292DIG46, E05C 1918

Patent

active

049937618

ABSTRACT:
A removable elongated positive lock for a sliding closure unit having fixed vertical framing structures and a sill mounting a fixed door and a sliding door movable to open and closed positions, with each of the fixed and sliding doors having oppositely disposed vertical end frame members and a horizontal bottom frame member. The elongated positive lock engages the fixed vertical framing structures and one of the sliding door's vertical end frame members to effect positive lock of the sliding door in its closed position to prevent forced entry. Insulation carried by the positive lock insulates and seals the door sill and both fixed and sliding doors against cold conducted from the outside as well as drafts.

REFERENCES:
patent: 1838713 (1931-12-01), Solomon
patent: 3825290 (1974-07-01), Messina et al.
patent: 3993336 (1976-11-01), Frost
patent: 4383708 (1983-05-01), Lamberth
patent: 4570985 (1986-02-01), Waldo et al.
patent: 4798407 (1989-01-01), Miller
patent: 4875349 (1989-10-01), Girard

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