Protective means against unauthorized entry for a doorway

Details Protective means against unauthorized entry for a doorway Protective means against unauthorized entry for a doorway

1978-01-27

1979-07-17

Dorner, Kenneth J.

Closure fasteners

Portable

292150, E05C 1918, E05C 104

Patent

active

041613333

ABSTRACT:
A doorway is protected against unauthorized entry by a sliding bolt that extends at an angle through a hole in the unhinged side of the door and the jamb and stud. A ring member fastened into the door retains the bolt in locking position and also provides hanging storage for the bolt when withdrawn. The door hinges have internal pegs that keep the door closed even if the exposed hinge pins are removed.
A template is provided for forming the angled hole in the door, jamb and stud.

REFERENCES:
patent: 708892 (1902-09-01), Long
patent: 1485301 (1924-02-01), Sebastian
patent: 1517447 (1924-12-01), Merz
patent: 4057873 (1977-11-01), Bursani
patent: 4073525 (1978-02-01), Gurule
Popular Mechanics, Dec. 1944, p. 129, "Turn Button Prevents Raising of Sliding Bolt Lock."
Popular Science, Jun. 1959, p. 149, "Magnetic Lock Outwits Priers."

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