Length-adjustable latch

Details Length-adjustable latch Length-adjustable latch

1987-08-14

1989-06-20

Moore, Richard E.

Closure fasteners

Bolt casings

292DIG60, E05C 116

Patent

active

048404136

ABSTRACT:
A length-adjustable latch having an outer housing and an inner housing. The length of the latch is adjusted by engaging an extension block of the inner housing with either of two positioned holes of the outer housing. A drive linkage connnects to a backset plate by engaging an extension element of the former with a sliding space of the latter. The combination of the drive linkage and the backset plate is encompassed by a spring but with either a trail end of the backset plate or both the rear portions of the backset plate and the drive linkage passing through each longitudinal opening of a slidable plate, the inner housing, an installation seat and the outer housing. Due to the manner of engagement between the inner housing and the outer housing and the corresponding position of the drive linkage and the backset plate, the length of the latch is adjustable, as desired, for a 60 mm (23/8") backset length or a 700 mm (23/4") backset length .

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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