Lock structure with a warning device

Details Lock structure with a warning device Lock structure with a warning device

1991-08-05

1993-01-05

Ng, Jin F.

Communications: electrical

Condition responsive indicating system

Specific condition

70358, 70439, 70493, 70DIG49, 200 6166, E05B 4506, H01H 2706

Patent

active

051774666

ABSTRACT:
A lock structure with a warning device, in which an additional set of tumblers are installed on the four sides of the cylinder body, the plug member and the sliding sleeves; in case of a wrong key being inserted into the cylinder body, the tumblers will be touched and projected outwards to trigger off a warning device.

REFERENCES:
patent: 3587081 (1971-06-01), Hawkins et al.
patent: 4603565 (1986-08-01), Strassmeir
patent: 4732023 (1988-03-01), Shen
patent: 4760722 (1988-08-01), Fann et al.
patent: 5041814 (1991-08-01), Lin

Affiliated with

Also associated with

Rating

Lock structure with a warning device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lock structure with a warning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lock structure with a warning device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2393438