Patent ID: 11873664
Assignee: DEFCON PRODUCTS, LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 2:
3. A deadbolt device comprising:
an assembly housing having a bore, the assembly housing being fixedly mounted to a door;
a deadbolt slidably connected in the bore, the deadbolt including a first end and a second end;
a deadbolt spring operatively connected to the deadbolt to urgingly engage deadbolt away from a locked position of the deadbolt;
an unlocking lever movably mounted in the assembly housing to lockingly engage the deadbolt in the locked position;
a locking key configured to be insertable into the bore of the assembly housing so as to engage with the second end of the deadbolt and push the deadbolt longitudinally in the bore to a locked position while the deadbolt is urged by the deadbolt spring away from the locked position, wherein the unlocking lever lockingly engages with the deadbolt,
the first end of the deadbolt being fixedly engaged with a door frame of the door when the deadbolt is the locked position, and
the unlocking lever is configured to release engaging with the deadbolt so as to release the deadbolt away from the locked position;
a sliding bar operatively connected to the unlocking lever and positioned to engage with a door handle on the door, the door handle being operatively connected to rotatively engage with the sliding bar when unlocking the door; and
a latch release operatively connected between the sliding bar and the unlocking lever, wherein the sliding bar slidably engages with the latch release so as to convert sliding movement of the sliding bar to engage with the unlocking lever and thereby release engaging with the deadbolt so as to release the deadbolt away from the locked position, wherein
the sliding bar slidably engages with the unlocking lever as the sliding bar slidably engages with the door handle such that the unlocking lever releases engaging with the deadbolt so as to release the deadbolt away from the locked position simultaneously with the door handle rotatively unlocking the door.