Closure fasteners – Bolt casings
Patent
1986-08-05
1987-11-24
Moore, Richard E.
Closure fasteners
Bolt casings
292 1, 292DIG60, 2923363, 292169, E05C 116
Patent
active
047083794
ABSTRACT:
An adjustable latch for a lockset for adjusting to either of two backset positions including a first cylindrical member having a first particular diameter. A second cylindrical member has a second diameter larger than the first diameter and with the first and second cylindrical members located in a telescopic arrangement for providing a telescopic adjustment between the cylindrical members. A first detent is interconnected between the first and second cylindrical members and has two detent positions corresponding to the two backset positions. A latch is located within the first cylindrical member. An actuating member is located without the cylindrical members at a position opposite to the latch for actuating the latch between open and closed positions. A second detent interconnects the latch and the actuating member and includes two detent positions corresponding to the two backset positions. Unlocking means is coupled to both the first and second detent means to unlock both detent means to allow adjustment between the two backset positions.
REFERENCES:
patent: 4372594 (1983-02-01), Gater
patent: 4662665 (1987-05-01), Lin
Kambo Security Products Ltd.
Moore Richard E.
Roston Ellsworth R.
Schwartz Charles H.
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