E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
292/2
E05B 65/10 (2006.01) E05B 43/00 (2006.01) E05B 47/06 (2006.01)
Patent
CA 2033111
The device incorporates a time-delayed mech- anism which obstructs movement of a latchbolt from its latched position to an unlatched position. Linkage coupled to the latchbolt, and manually acutated (by a push pad, or the like), includes an arm which normally pivots, with the manual actuation of the linkage. An initial, limited movement of the linkage activates a switch, and the latter activates a time delay circuit component. The latter component, following a specified time delay, interrupts power to a solenoid. The solenoid, normally powered, has a bar inductively movable therein with a rod joined thereto for coincident movement. An end of the rod carries a roller which intrudes into the pivotal arc of the arm, pre- venting full pivotable movement thereof. Con- sequently, the linkage, which is to move the latchbolt to its unlatched position is blocked until the time delay has run its course, where- upon the solenoid is de-energized. With de- energization of the solenoid, the bar, rod and roller are retracted, to permit full pivotal movement of the arm, and movement of the latch- bolt to its unlatched position.
Coleman Michael D.
Haeck Paul J.
Lowe Peter E.
Muller Peter H.
Coleman Michael D.
Haeck Paul J.
Lowe Peter E.
Muller Peter H.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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