Quincunx-shaped lock device

Details Quincunx-shaped lock device Quincunx-shaped lock device

1982-11-03

1985-04-02

Wolfe, Robert L.

Locks

Operating mechanism

Key

70378, 70419, E05B 1514, E05B 2708

Patent

active

045079455

ABSTRACT:
An improved quincunx-shaped lock device comprises a lower pin seat, a lower lock pin and a check ring. The whole lengths of the lower lock pins are different. The lengths of the pin head and pin tail having different outer diameters are also different. The bottom of the lower pin holes of the lower pin seat has pin-tail-through holes. The check ring is furnished with several irregular notches. Whenever the lower lock pins are pressed by a key other than that for the lock to the bottom of the lower pin holes, the pin tails will penetrate through the pin-tail-through hole, and some of them will touch the check ring, while others penetrate out of the notches of the check ring. Since numerous variations are designed in the lock, it is impossible to unlock it without the correct key.

REFERENCES:
patent: 565622 (1896-08-01), Kennedy
patent: 1375521 (1921-04-01), Lasky
patent: 2021443 (1935-11-01), Deutsch
patent: 4078405 (1978-03-01), Steinbach

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