Plunger lock mechanism

Tools and hardware – Locking or closing device – Lock – latch or bolt

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0807

Patent

active

D03848752

REFERENCES:
patent: D293878 (1988-01-01), Kayser
patent: D319776 (1991-09-01), Barrett et al.
patent: D349035 (1994-07-01), Baber
patent: D351780 (1994-10-01), Baber
patent: 1580611 (1926-04-01), Kirkpatrick
patent: 3710052 (1973-01-01), Jette, Jr.
patent: 3803575 (1974-04-01), Gotanda
patent: 3851325 (1974-11-01), Maged
patent: 3967080 (1976-06-01), Errani
patent: 4317969 (1982-03-01), Riegler et al.
patent: 4336518 (1982-06-01), Holce et al.
patent: 4465997 (1984-08-01), Hines
patent: 4587517 (1986-05-01), Engstrom et al.
patent: 4609910 (1986-09-01), Geringer et al.
patent: 4639022 (1987-01-01), Dunphy
patent: 4903010 (1990-02-01), Greene
patent: 5155460 (1992-10-01), Huckins et al.
Fig. 1 diagram of a conventional plunger lock to secure a movable barrier without a reed switch.
Fig. 2 diagram of a cross-section of a conventional plunger lock without a reed switch.

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