Closure fasteners – Bolts – Sliding
Patent
1986-01-07
1987-12-08
Moore, Richard E.
Closure fasteners
Bolts
Sliding
292337, 292DIG60, E05C 116
Patent
active
047114770
ABSTRACT:
The mechanism is used with a latch-bolt unit (including a latch-bolt head) and a latch-handle assembly, for installation in a door. The novel mechanism includes a retracting member (connected to retract the latch-bolt head), with two different sets of extracting teeth to accommodate two different standard door-lock backset configurations of standard commercial doors. A connecting device, made up of first and second coupling members as well as a movable configuration-selector plate, is connected at the rear of the latch-bolt unit. The connecting device has two different sets of screw openings and clearing spaces. Its selector plate selectively effectuates either of these two different sets of connecting points, corresponding to the two standard backsets. The selector plate is thus used to adjust the latch-bolt mechanism quickly and easily, to accommodate the preferred door-lock backset--without any modification such as cutting or bending. The selector plate provides a telescoping action, so that the connecting device does not extend into the door substantially beyond the latch-bolt handle assembly; consequently the door-edge bored hole need not be any deeper than necessary. The telescoping action is an exclusively linear, one-stage adjustment motion.
REFERENCES:
patent: 4593542 (1986-06-01), Rolondi et al.
Fann Yaw-Shin
Wu Rong-Faa
Moore Richard E.
Tong Lung Metal Industry Co. Ltd.
LandOfFree
Duplex latch bolt mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Duplex latch bolt mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Duplex latch bolt mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-19179