IP Library Granted Patent US 12,460,458
Granted Patent B2
US 12,460,458 · App. 18/458,002 · Granted Nov 4, 2025

Removable, non-intrusive, remotely-controlled door locking apparatus

Inventor: Kenneth Finley (Arlington, VA)
E05C19/005E05B2045/063E05B2045/065E05B2047/0016E05B2047/0048E05B2047/0095
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Quick Facts
Patent No.
US 12,460,458
App. No.
18/458,002
Granted
Nov 4, 2025
Kind
B2
Abstract

In order to secure a door in a locked position without a key, such as to resist a forced entry through the door, a removable, non-intrusive, remotely-controlled door locking apparatus is provided, which includes a rear plate for attachment against a surface of a door using an adhesive substance, a flange that extends from the rear plate under the door, and a cover for enclosing components on the rear plate. A DC-powered linear actuator connected to the rear plate and at least one electronics module configured to communicate wirelessly is within the cover. A foot of the actuator is configured to be extended in a lock state against a floor surface to secure the door or retracted in an unlock state, based on either a wireless signal received from a remote smart device or the state of a manual switch located on apparatus to control the actuator.

Claims (126)

1 . A remotely-controlled door locking apparatus comprising:

a rear plate for attachment against a surface of a door;

the rear plate being removably attached against the surface of the door using a non-marring adhesive;

a removable cover on the rear plate;

a DC-powered linear actuator enclosed within the removable cover and connected to the rear plate;

at least one electronics module attached to the rear plate;

the at least one electronics module further comprising a printed circuit board, a controller, actuator control circuitry, a radio transceiver, and a force sensor;

a foot attached to a lower end of the DC-powered linear actuator;

the foot to be extended in a lock state or retracted in an unlock state;

a power supply;

the power supply to provide electrical power to the at least one electronics module and the DC-powered linear actuator; and

an extended lip.

2 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the DC-powered linear actuator comprising a movable piston; and

the foot being attached to the lower end of the moveable piston.

3 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the radio transceiver being integrated with and in electronic communication with the controller; and

the radio transceiver being adapted to communicate wirelessly with a remote smart device using short-range RF communications.

4 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the controller being a microcontroller;

the controller being adapted to communicate wirelessly via the radio transceiver and the remote smart device; and

the controller being adapted to send control signals to any other electronic device located on the rear plate.

5 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the controller further comprising a battery level measurement circuit;

the battery level measurement circuit being adapted to sense a battery voltage; and

the controller being adapted to send a signal to the remote smart device with the battery energy or voltage level obtained from the battery level measurement circuit.

6 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the actuator control circuitry being adapted to control the actuator via a motor control signal, based upon a user signal received from the controller, the controller receiving the user signal from the remote smart device.

7 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the force sensor being adapted to sense a movement condition of the door; and

the controller being adapted to generate an audible alarm and a message signal when the force sensor senses a movement condition of the door, the audible alarm and message signal being transmitted to the remote smart device.

8 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the removable cover including a cutout for the movable piston, the cutout being adapted to allow the movable piston to retract and extend.

9 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the power supply comprising one or more rechargeable batteries; and

the power supply further comprising a charging circuitry adapted to recharge the one or more rechargeable batteries via an external power source.

10 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

an upper bracket;

the upper bracket supporting the dc-powered linear actuator; and

the upper bracket being enclosed within the removable cover.

11 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

a lower bracket; and

the lower bracket being connected to the rear plate to support the lower end of the actuator.

12 . The remotely-controlled door locking apparatus of claim 1 , further comprising:

the remote smart device being adapted with a display, a lock icon, an unlock icon, a low battery life indicator, and a sensor alarm status indicator;

the controller further comprising an under-voltage circuit;

the under-voltage circuit being adapted to sense a battery voltage; and

the controller being adapted to send a signal to the remote smart device upon the under-voltage circuit sensing a low battery voltage.

13 . A remotely-controlled door locking apparatus comprising:

a rear plate for attachment against a surface of a door;

the rear plate being removably attached against the surface of the door using a non-marring adhesive;

a removable cover on the rear plate;

a DC-powered linear actuator enclosed within the removable cover and connected to the rear plate;

at least one electronics module attached to the rear plate;

a foot attached to a lower end of the DC-powered linear actuator;

the foot to be extended in a lock state or retracted in an unlock state;

a power supply;

an extended lip;

the DC-powered linear actuator comprising a movable piston;

the foot being attached to the lower end of the moveable piston;

the at least one electronics module further comprising a printed circuit board, a controller, actuator control circuitry, a radio transceiver, and a force sensor;

the removable cover including a cutout for the movable piston, the cutout being adapted to allow the movable piston to retract and extend;

the power supply comprising one or more rechargeable batteries;

the power supply to provide electrical power to the at least one electronics module and the DC-powered linear actuator;

the power supply further comprising a charging circuitry adapted to recharge the one or more rechargeable batteries via an external power source;

an upper bracket;

the upper bracket supporting the dc-powered linear actuator;

the upper bracket being enclosed within the removable cover;

a lower bracket;

the lower bracket being connected to the rear plate to support the lower end of the actuator;

the controller further comprising a battery level measurement circuit;

the battery level measurement circuit being adapted to sense a battery voltage; and

the controller being adapted to send a signal to the remote smart device with the battery energy or voltage level obtained from the battery level measurement circuit; and

the remote smart device being adapted with a display, a lock icon, an unlock icon, a low battery life indicator, and a sensor alarm status indicator.

14 . The remotely-controlled door locking apparatus of claim 13 , further comprising:

the radio transceiver being integrated with and in electronic communication with the controller; and

the radio transceiver being adapted to communicate wirelessly with a remote smart device using short-range RF communications.

15 . The remotely-controlled door locking apparatus of claim 13 , further comprising:

the controller being a microcontroller;

the controller being adapted to communicate wirelessly via the radio transceiver and the remote smart device; and

the controller being adapted to send control signals to any other electronic device located on the rear plate.

16 . The remotely-controlled door locking apparatus of claim 13 , further comprising:

the controller further comprising an under-voltage circuit;

the under-voltage circuit being adapted to sense a battery voltage; and

the controller being adapted to send a signal to the remote smart device upon the under-voltage circuit sensing a low battery voltage.

17 . The remotely-controlled door locking apparatus of claim 13 , further comprising:

the actuator control circuitry being adapted to control the actuator via a motor control signal, based upon a user signal received from the controller, the controller receiving the user signal from the remote smart device.

18 . The remotely-controlled door locking apparatus of claim 13 , further comprising:

the force sensor being adapted to sense a movement condition of the door; and

the controller being adapted to generate an audible alarm and a message signal when the force sensor senses a movement condition of the door, the audible alarm and message signal being transmitted to the remote smart device.

19 . A remotely-controlled door locking apparatus comprising:

a rear plate for attachment against a surface of a door;

the rear plate being removably attached against the surface of the door using a non-marring adhesive;

a removable cover on the rear plate;

a DC-powered linear actuator enclosed within the removable cover and connected to the rear plate;

the DC-powered linear actuator comprising a movable piston;

at least one electronics module attached to the rear plate;

the at least one electronics module further comprising a printed circuit board, a microcontroller, actuator control circuitry, a radio transceiver, and a force sensor;

the radio transceiver being integrated with and in electronic communication with the controller;

the radio transceiver being adapted to communicate wirelessly with a remote smart device using short-range RF communications;

the controller being a microcontroller;

the controller being adapted to communicate wirelessly via the radio transceiver and the remote smart device;

the controller being adapted to send control signals to any other electronic device located on the rear plate;

the controller further comprising a battery level measurement circuit;

the battery level measurement circuit being adapted to sense a battery voltage;

the controller being adapted to send a signal to the remote smart device showing the battery energy or voltage level obtained from the battery level measurement circuit;

the actuator control circuitry being adapted to control the actuator via a motor control signal, based upon a user signal received from the controller, the controller receiving the user signal from the remote smart device;

the force sensor being adapted to sense a movement condition of the door;

the controller being adapted to generate an audible alarm and a message signal when the force sensor senses a movement condition of the door, the audible alarm and message signal being transmitted to the remote smart device;

the controller further comprising an under-voltage circuit;

the under-voltage circuit being adapted to sense a battery voltage;

the controller being adapted to send a signal to the remote smart device upon the under-voltage circuit sensing a low battery voltage;

a foot attached to a lower end of the movable piston;

the foot to be extended in a lock state or retracted in an unlock state;

the removable cover including a cutout for the movable piston, the cutout being adapted to allow the movable piston to retract and extend;

an extended lip;

a power supply;

the power supply comprising one or more rechargeable batteries;

the power supply to provide electrical power to the at least one electronics module and the DC-powered linear actuator;

the power supply further comprising a charging circuitry adapted to recharge the one or more rechargeable batteries via an external power source;

an upper bracket;

the upper bracket supporting the dc-powered linear actuator;

the upper bracket being enclosed within the removable cover;

a lower bracket;

the lower bracket being connected to the rear plate to support the lower end of the actuator; and

the remote smart device being adapted with a display, a lock icon, an unlock icon, a low battery life indicator, and a sensor alarm status indicator.

Continuity (2)
Provisional Application 63373898 · Aug 30, 2022
Related Publication 20240068282A1 · Feb 29, 2024
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