Knob for a door lock

Details Knob for a door lock Knob for a door lock

1978-11-27

1980-05-06

Wolfe, Robert L.

Locks

Operating mechanism

Key

70224, 70416, B60R 2502, E05B 6300

Patent

active

042010691

ABSTRACT:
The present invention relates, in a door lock in which a door knob is locked when the door is locked, to a knob for a door lock which is not disengaged from a lock device and secure even if the knob is intended to be twisted or pulled out resulting from the outside attack.

REFERENCES:
patent: 812905 (1906-02-01), Voight
patent: 2138856 (1938-12-01), Harp
patent: 3621685 (1971-11-01), Sargent

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