Easily adjustable latch

Details Easily adjustable latch Easily adjustable latch

1987-08-11

1989-06-20

Moore, Richard E.

Closure fasteners

Bolt casings

292DIG60, E05C 116

Patent

active

048404128

ABSTRACT:
A latch including inner and outer cylindrical housings, the inner housing having a guide slot thereon for receiving a guide piece and fixing the slide path of the outer housing with respect to the inner housing. The inner housing has a protuberance which is engageable with a minimum or a maximum backset hole. A retainer plate having two retainer posts fits into the inner housing. The retainer post receives springs for loading a main bolt and an auxiliary bolt. A link and a slide bar can be used according to whether minimum or maximum backset is required. A stabilizer also prevents the auxiliary bolt from being forced open from the outside.

REFERENCES:
patent: 3819214 (1974-06-01), Hart et al.
patent: 4664433 (1987-05-01), Solovieff
patent: 4718706 (1988-01-01), Fang
patent: 4729585 (1988-03-01), Lin
patent: 4729586 (1988-03-01), Fang
patent: 4736973 (1988-04-01), Fang
patent: 4752090 (1988-06-01), Lin

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