Deadbolt Interface Clutch Control Against Key and Pick Bypass

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Solution Overview

Problem

Existing deadbolt locks face security threats such as lock picking, bump keys, duplication of physical keys, and unauthorized access, and existing smart systems introduce vulnerabilities like hacking and complicated installation.

Innovation Solution

A deadbolt control and security system with a deadbolt interface unit and at least one actuator unit, featuring a manual mode and a remote mode, that includes a deadbolt interface unit manual egress handle, a gear train, a clutch, a motor, a power source, and a unit-handle coupler, preventing unlocking with keys, lock picking tools, and bypass tools, and allowing easy installation without disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional deadbolt locks are used, then mechanical security is provided, but vulnerability to lock picking, bump keys, and key duplication exists

Engineering Contradiction:

Improvesecurity against forced entryVSAvoidvulnerability to lock picking and key duplication

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the traditional mechanical key-cylinder system with an electronic motorized actuation system. The deadbolt is controlled by a motor that receives signals from remote actuators or manual egress handles, eliminating the mechanical key cylinder that is vulnerable to picking and duplication. The system maintains mechanical security through the deadbolt itself while removing the vulnerable key interface.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If smart locking systems are added to enhance security, then access control is improved, but hacking vulnerabilities and installation complexity increase

Engineering Contradiction:

Improveaccess control securityVSAvoidinstallation and system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the smart locking functionality directly into the existing deadbolt assembly, combining the motor actuator, control electronics, and power source into a single integrated unit that replaces traditional lock components. This integration reduces overall system complexity compared to adding separate smart locking systems to existing deadbolts.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system includes manual egress handles that allow users to manually override and operate the deadbolt without requiring electronic components, batteries, or complex programming. This self-service capability ensures the lock remains functional even when electronic systems fail, reducing dependency on complex smart features.

Inventive Principle:

Principle #25Self-service

3Object-affected harmful factors

If key slot cylinders are removed to prevent key-based attacks, then security against key duplication is improved, but legitimate key-based access is lost

Engineering Contradiction:

Improveprotection against key duplicationVSAvoidkey-based access functionality

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent substitutes the mechanical key slot cylinder with an electronic control interface. Instead of using physical keys that can be duplicated, the system uses electronic signals from remote actuators or coded inputs to trigger the motor that operates the deadbolt. This eliminates the ability to duplicate access while maintaining convenient access control through electronic means.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively prevents unauthorized access and enhances security by blocking key-based unlocking and lock picking, while being easy to install and operate, without introducing hacking vulnerabilities.

Implementation Method 1

a motor; (vi) a power source

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12509913B2Deadbolt control and security systems

Publication Date: 2025.12.30 IMPERIUM ELECTRONICS LLC

AI summary

A deadbolt control and security system for preventing rotation of a deadbolt manual egress handle of a deadbolt lock is described herein. The system preferably includes a deadbolt interface unit and at least one actuator unit. The deadbolt interface unit has a manual mode (the deadbolt interface unit manual egress handle controlling locking and unlocking the deadbolt lock) and a remote mode (the at least one actuator unit controlling locking and unlocking the deadbolt lock). The deadbolt interface unit includes: a deadbolt interface unit manual egress handle; a gear train having a shaft coordinated with the deadbolt interface unit manual egress handle; a unit-handle coupler that interfaces between the deadbolt manual egress handle and the deadbolt interface unit manual egress handle via the shaft; and a clutch. Preferred systems prevent the deadbolt lock from being unlocked using keys and/or other bypass tools.