Automated door latch actuator especially adapted for mortise locks and method corresponding thereto
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 24, 2003
Grant Date -
Nov 7, 2002
app pub date -
May 7, 2001
filing date -
May 7, 2001
priority date (Note) -
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Abstract
A door latch actuator and methodology actuates a mortise-type dead latch that has a spring latch to reciprocally engage and disengage the door latch actuator, and a dead latch pin to operate movement of the spring latch. The actuator's housing has a cavity to receive the spring latch and dead latch pin when the door is fastened, and a reciprocally movable spring latch plunger and dead latch plunger mounted therein. The spring latch plunger's head portion selectively engages the spring latch at different locations when the door is fastened. A striker assembly has arrangeable strike elements defining a strike surface for the dead latch pin and portals for the spring latch for different spring latch and dead latch pin arrangements. The actuator also includes a drive to reciprocally drive the dead latch plunger and advance the spring latch plunger.
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