US 12,312,838 B2
Bolting mechanism
John McGill, Wokingham (GB)
Assigned to Surelock McGill Limited, Wokingham (GB)
Filed by Surelock McGill Limited, Wokingham (GB)
Filed on Sep. 1, 2023, as Appl. No. 18/241,507.
Claims priority of application No. 2213003 (GB), filed on Sep. 6, 2022.
Prior Publication US 2024/0159083 A1, May 16, 2024
Int. Cl. E05B 63/00 (2006.01); E05B 47/00 (2006.01); E05B 63/16 (2006.01)
CPC E05B 63/0069 (2013.01) [E05B 47/0002 (2013.01); E05B 63/16 (2013.01); E05B 2047/002 (2013.01); E05B 2047/0076 (2013.01); E05Y 2900/132 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bolting mechanism comprising:
one or more bolt members arranged to be driven together between an extended configuration and a retracted configuration;
a first drive train arranged to couple motion of a first handle to the bolt members so as to drive them from the extended to the retracted configuration;
a primary deadbolt mechanism arranged to prevent the bolt members from being driven from the extended to the retracted configuration when the primary deadbolt mechanism is in a locked state, the primary deadbolt mechanism comprising a fail-secure electrical actuator that continues to prevent the bolt members from being driven from the extended to the retracted configuration in case of electrical power loss to the bolting mechanism;
a second drive train arranged to couple motion of a second handle to the bolt members to drive them from the extended to the retracted configuration, the second drive train being arranged to override the primary deadbolt mechanism so as to drive the bolt members from the extended to the retracted configuration even when the primary deadbolt mechanism is in the locked state; and
a secondary deadbolt mechanism arranged to prevent the bolt members from being driven from the extended to the retracted configuration when the secondary deadbolt mechanism is in a locked state, the secondary deadbolt mechanism comprising a fail-safe electrical actuator that ceases to prevent the bolt members from being driven from the extended to the retracted configuration in case of electrical power loss to the bolting mechanism.