Locks – Operating mechanism – Key
Patent
1996-01-18
1997-11-04
Gall, Lloyd A.
Locks
Operating mechanism
Key
70372, 70379R, 70454, 70466, E05B 1704
Patent
active
056827784
ABSTRACT:
A lead-in device is used during installation of a rim-type lock cylinder having a tailpiece in an exit mechanism including a cam having a tailpiece receiving aperture. The lead-in device includes a converging tunnel having an exit aperture sized to match the tailpiece receiving aperture and an entrance aperture that is larger than the exit aperture. The lead-in device also includes a pair of arms positioned to be inserted into the cam aperture to hold the exit aperture in registry with the cam aperture and to maintain the entrance aperture at a predetermined distance from the cam. When the arms are positioned in the cam aperture and the exit aperture is in registry with the cam aperture, the converging tunnel guides a tailpiece inserted into the entrance aperture through the exit aperture and into the cam aperture to engage the cam.
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Akers, III Benjamin H.
Cohrs Richard B.
Mason James
Gall Lloyd A.
Minns Michael H.
Palermo Robert F.
Von Duprin, Inc.
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