Locks – Operating mechanism – Using a powered device
Patent
1998-01-05
1999-01-12
Gall, Lloyd A.
Locks
Operating mechanism
Using a powered device
70280, 292142, 292144, E05B 4700
Patent
active
058573658
ABSTRACT:
An electronically operated lock has a latch mechanism which is operable by a rotatable spindle. The spindle can be rotated manually either by an inside turn lever or a key operated outside plug or rotated electronically. A pinion is secured to the spindle and a slider supported for vertical displacement has a vertical rack which cooperates with the pinion. The slider has vertically separated upper and lower control surfaces and a rotatable wheel gear has an eccentric axially extending finger located intermediate the upper and lower control surfaces. The wheel gear is driven by a single direction motor through gearing. The upper and lower control surfaces are selectively located so that when the finger is rotated in one direction from a 3:00 position to a 9:00 position, the displacement of the slider will displace the bolt to the retracted position and so that when the finger is rotated in that direction from the 9:00 position to the 3:00 position, the displacement of the slider will displace the bolt to the advanced position.
REFERENCES:
patent: 3844592 (1974-10-01), Giardina et al.
patent: 3947060 (1976-03-01), Zimmer et al.
patent: 4438962 (1984-03-01), Soloviff et al.
patent: 4949563 (1990-08-01), Gerard et al.
patent: 4986099 (1991-01-01), Johnson et al.
patent: 5083448 (1992-01-01), Karkkainen et al.
Emhart Inc.
Gall Lloyd A.
Smith Spencer T.
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