Anchor lock

Details Anchor lock Anchor lock

1987-04-08

1988-08-23

Moore, Richard E.

Closure fasteners

Portable

292DIG15, 292DIG36, E05C 1918

Patent

active

047656646

ABSTRACT:
This anchor lock is designed to prevent a door or cover of a doorway from being forced inward. Primarily, it consists of a sleeve anchorable in pavement in front of the door, and a bar with a tongue at its top end is received in the sleeve, and the tongue is received in a plate attached to the door. The bar is also provided with a projecting pin for preventing its removal from the sleeve when the device is in use, and a slot in the sleeve enables the pin to travel upward and outward of the sleeve, enabling storage of the bar when the device is not in use.

REFERENCES:
patent: 238010 (1881-02-01), Thomson
patent: 1508029 (1924-09-01), Segal
patent: 1622791 (1927-03-01), Lang
patent: 2443279 (1948-06-01), Sugg
patent: 3961816 (1976-06-01), Mueller
patent: 4178024 (1979-12-01), Wagner
patent: 4418550 (1983-12-01), Hamilton
patent: 4462623 (1984-07-01), Grant

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