Patent ID: 11920378
Assignee: DORMAKABA USA INC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. A lock, comprising:
a blocker;
a blocker actuator operable to selectively actuate the blocker;
a retainer selectively rotatable to a blocking position to block the blocker actuator from actuating the blocker and selectively rotatable to an unblocking position to allow the blocker actuator to actuate the blocker;
a retainer blocker operable to selectively cooperate with the retainer to maintain the retainer in the blocking position to block the blocker actuator from actuating the blocker, the retainer blocker comprising at least one stop rotatable into a stop position preventing a rotation of the retainer;
a worm wheel carrying the at least one stop;
a motor; and
a worm screw rotatable by the motor, the worm screw intermeshed with the worm wheel whereby energization of the motor actuates the at least one stop.