Shielded pushbutton lock

Details Shielded pushbutton lock Shielded pushbutton lock

2005-11-15

2005-11-15

Gall, Lloyd A. (Department: 3676)

Locks

Operating mechanism

Key

C070S417000, C070SDIG056, C292SDIG037

Reexamination Certificate

active

06964184

ABSTRACT:
A shielded pushbutton lock that includes housing that supports a lock cylinder connected to a key operated pushbutton. The pushbutton is shielded by way of a rotatable collar that extends over the pushbutton and shields the pushbutton, so that a thief may not defeat the pushbutton lock mechanism by attempting to rotate the pushbutton in order to allow operation of the latch mechanism.

REFERENCES:
patent: 1342728 (1920-06-01), Welch
patent: 3751953 (1973-08-01), Newman
patent: 3910082 (1975-10-01), Patriquin
patent: 4074552 (1978-02-01), Smith
patent: 4122695 (1978-10-01), Hall
patent: 4338804 (1982-07-01), Solovieff
patent: 4338806 (1982-07-01), Cox
patent: 4424694 (1984-01-01), Mochida
patent: 5379617 (1995-01-01), Zagoroff
patent: 5447049 (1995-09-01), Shieh
patent: 5655391 (1997-08-01), Long
patent: 5669255 (1997-09-01), Albano
patent: 5906125 (1999-05-01), Shen
patent: 6564602 (2003-05-01), Gregory

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