Latch bolt accessory

Details Latch bolt accessory Latch bolt accessory

1978-07-05

1980-02-19

Lyddane, William E.

Closure fasteners

Bolt guards

292 1, 292153, 292288, E05B 1700, E05B 1512

Patent

active

041891767

ABSTRACT:
For use with a reciprocating latch bolt or plunger having a transversely disposed slot, a thin elongate plate designed to fit in the usual space between the door edge and the frame and to engage in said slot to prevent the retraction of the latch bolt from the frame keeper, the latch bolt slot being of a width to accommodate the thickness of the plate. In a preferred embodiment the plate is made of 18 or 20 gauge sheet metal which is sturdy enough to restrain the retraction of the latch bolt yet thin enough to fit in the normal door-to-frame clearance dimension and on removal from the latch bolt to be carried in one's wallet or purse. The plate may be provided with a latch accommodating perforation near each end, with one of said perforations having a side opening thereto whereby the plate at this end is in the form of a hook, and each perforation has an inwardly extending projection or tab selectably engageable in said latch bolt slot. In this form the latch bolt accessory is possessed of maximum versatility being usable in both reversed end-for-end positions and even when inverted.

REFERENCES:
patent: 191994 (1877-06-01), Newell
patent: 1014583 (1912-01-01), Eisenhart
patent: 2827813 (1958-03-01), Totten
patent: 3312490 (1967-04-01), MacDonald
patent: 3318123 (1967-05-01), Piazza
patent: 3773369 (1973-11-01), Wersonick

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