Door lock with button stopper

Details Door lock with button stopper Door lock with button stopper

2008-05-27

2008-05-27

Engle, Patricia (Department: 3673)

Locks

Special application

For control and machine elements

C070S223000, C070S467000

Reexamination Certificate

active

11349162

ABSTRACT:
A door lock able to be prevented from being locked by an unexpected exterior force includes a main body, a fixing member and a handle. The main body is provided with a sleeve at the center extended outwards from two sides. One end of the sleeve is matched with a lining tube that is linked with a button. Via rotating the button for an angle, projections of a stopper attached with one end of the button is to be guided into a blocking groove of the lining tube, enabling the button to be locked in the blocking groove so that the button can not be pressed down, able to prevent the button from being locked by an unexpected exterior force.

REFERENCES:
patent: 3011331 (1961-12-01), Williams
patent: 3025096 (1962-03-01), Williams
patent: 5941108 (1999-08-01), Shen
patent: 6105407 (2000-08-01), Yao
patent: 6575006 (2003-06-01), Don
patent: 6615630 (2003-09-01), Wu et al.
patent: 2003/0193201 (2003-10-01), Hwang

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