Sliding door and window locking device

Details Sliding door and window locking device Sliding door and window locking device

1985-11-20

1987-10-13

Moore, Richard E.

Closure fasteners

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292DIG46, E05C 1734

Patent

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046994076

ABSTRACT:
A locking device for sliding doors or windows comprises a pair of bars pivotally interconnected at an intermediate point on one of the bars to form a toggle mechanism. Pivotal movement is limited in one direction beyond the extended configuration of the bars, and friction pads are provided at their outer free ends for engaging opposing relatively movable surfaces of a sliding door or window unit. The device can be forceably locked in the extended configuration between the opposing surfaces by exerting pressure on the toggle mechanism.

REFERENCES:
patent: 2779561 (1957-01-01), Blundeau
patent: 3287050 (1966-11-01), Ferrante
patent: 3698754 (1972-10-01), Means
patent: 3816967 (1974-06-01), Littrell
patent: 4056115 (1977-11-01), Thomas
patent: 4073522 (1978-02-01), Tierney
patent: 4139227 (1979-02-01), Spurr
patent: 4157128 (1979-06-01), Peters
patent: 4231599 (1980-11-01), Gayman
patent: 4395065 (1983-07-01), Nelson et al.
patent: 4493501 (1985-01-01), Abel

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