IP Library Granted Patent US 10,450,777
Granted Patent B2
US 10,450,777 · App. 16/138,664 · Granted Oct 22, 2019

Digital lock

Inventor: Mika Pukari (Oulu, FI)
Assignee: Axtuator OY
E05B47/0005E05B47/0038G07C9/00722G07C9/00698G07C9/00817G07C9/00896
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,450,777
App. No.
16/138,664
Granted
Oct 22, 2019
Kind
B2
Abstract

The invention provides a digital lock including at least two magnets. One magnet is a semi hard magnet and the other magnet is a hard magnet. The hard magnet is configured to open or close the digital lock. The semi hard magnet and the hard magnet are placed adjacent to each other. A change in magnetisation polarisation of the semi hard magnet is configured to push or pull the hard magnet to open or close the digital lock.

Claims (47)

1. A digital lock, comprising:

a semi-hard magnet; and

a hard magnet, wherein:

the hard magnet is configured to move to open or close the digital lock,

the semi-hard magnet and the hard magnet are configured adjacent to each other, and

a change in magnetization polarization of the semi-hard magnet is configured to push or pull the hard magnet to open or close the digital lock.

2. A digital lock as claimed in claim 1 , wherein the semi-hard magnet is inside a magnetization coil, and has a coercivity less than a coercivity of the hard magnet.

3. A digital lock as claimed in claim 1 , wherein a rest state of the digital lock is locked, and the digital lock is configured to return to a locked state.

4. A digital lock as claimed in claim 1 , wherein a rest state of the digital lock is open, and the digital lock is configured to return to an openable state.

5. A digital lock as claimed in claim 1 , wherein the digital lock is a self-powered lock powered by any of the following: NFC, solar panel, user's muscle power, power supply or battery.

6. A digital lock as claimed in claim 1 , wherein the digital lock comprises a body, the body comprising a first axle, a second axle, and a user interface connected to the first axle, and wherein the semi-hard magnet and the hard magnet are inside the first axle.

7. A digital lock as claimed in claim 6 , wherein the digital lock comprises a position sensor, configured to position a notch of the second axle in place for the hard magnet to enter the notch.

8. A digital lock as claimed in claim 1 , wherein the digital lock comprises electronics connected to an identification device via a communication bus, and wherein the identification device is configured to identify a user by any of the following:

electronic key, electronic tag, fingerprint, magnetic stripe, NFC phone.

9. A digital lock as claimed in claim 6 , wherein in a locked state the hard magnet is configured to be inside the first axle, wherein the second axle does not rotate, and wherein the user interface rotates.

10. A digital lock as claimed in claim 6 , wherein in an openable state the hard magnet is protruded into a notch of the second axle.

11. A digital lock as claimed in claim 1 , wherein the digital lock features at least one blocking pin that is configured to protrude into a notch of a lock body in the event of any of the following: external magnetic field is applied, external hit or impulse is applied, or a first axle is turned too fast, to prevent unauthorized opening of the digital lock.

12. A digital lock as claimed in claim 11 , wherein the blocking pins may protrude into the lock body from all different angles.

13. A digital lock as claimed in claim 1 , wherein the semi-hard magnet is made of Alnico and the hard magnet is made of SmCo.

14. A digital lock as claimed in claim 1 , wherein the digital lock is powered by mechanical movement of a lever or a knob attached to a lock system, or powered by electronic digital key insertion.

15. A software program product configured to control operation of a digital lock, the digital lock comprising

a semi-hard magnet; and

a hard magnet, wherein the semi-hard magnet and the hard magnet are configured adjacent to each other;

the software program product comprising a processing module configured to operate the digital lock, the processing module comprising:

an input module configured to receive an input from a user interface;

an authentication module configured to authenticate the input received by the user interface;

a database to store identification information of one or more users; and

an output module configured to control a power source to power a magnetization coil to change magnetization polarization of the semi: hard magnet in response to successful identification of a user, and configured to control the hard magnet to open or close the digital lock, wherein the output module is configured to change the magnetization polarization of the semi-hard magnet to push or pull the hard magnet to open or close the digital lock.

16. A software program product as claimed in claim 15 , wherein the semi-hard magnet is inside the magnetization coil, and wherein the magnetization coil is controlled by the output module for magnetization of the semi-hard magnet, which has a coercivity less than a coercivity of the hard magnet.

17. A software program product as claimed in claim 15 , wherein a rest state of the digital lock is locked, and wherein the output module configures the digital lock to return to a locked state.

18. A software program product as claimed in claim 15 , wherein a rest state of the digital lock is open, and wherein the output module configures the digital lock to return to an openable state.

19. A software program product as claimed in claim 15 , wherein the digital lock is a self-powered lock powered by any of the following: NFC, solar panel, user's muscle power, power supply or battery.

20. A software program product as claimed in claim 15 , wherein the digital lock comprises a body, the body comprising a first axle, a second axle, and a user interface connected to the first axle, and wherein the semi-hard magnet and the hard magnet are inside the first axle.

21. A software program product as claimed in claim 20 , wherein the digital lock comprises a position sensor, configured to position a notch of the second axle in place for the hard magnet to enter the notch.

22. A software program product as claimed in claim 15 , wherein the digital lock comprises electronics connected to an identification device via a communication bus, and wherein the identification device is configured to identify a user by any of the following: electronic key, electronic key tag, fingerprint, magnetic stripe, NFC device.

23. A software program product as claimed in claim 20 , wherein in a locked state the hard magnet is configured to be inside the first axle, wherein the second axle does not rotate, and wherein the user interface rotates.

24. A software program product as claimed in claim 20 , wherein in an openable state the hard magnet is protruded into a notch of the second axle.

25. A software program product as claimed in claim 15 , wherein the digital lock features at least one blocking pin that is configured to protrude into a notch of a lock body in the event of any of the following: external magnetic field is applied, external hit or impulse is applied, or a first axle is turned too fast, to prevent unauthorized opening of the digital lock.

26. A software program product as claimed in claim 15 , wherein the digital lock is powered by mechanical movement of a lever or a knob attached to a lock system, or powered by electronic digital key insertion.

27. A software program product as claimed in claim 15 , wherein the processing module is further configured to provide instructions to provide notification of a locked state or openable state of the digital lock.

28. A method for controlling a digital lock, the method comprising;

changing magnetization polarization of a semi-hard magnet, of the digital lock, to a first state;

responsive to the change of the magnetization polarization to the first state, pushing or pulling a hard magnet, of the digital lock, to open the digital lock;

changing the magnetization polarization of the semi-hard magnet to a second state; and

responsive to the change of the magnetization polarization to the second state, pushing or pulling the hard magnet to close the digital lock, wherein the semi-hard magnet and the hard magnet are configured adjacent to each other.

29. A digital lock as claimed in claim 2 , wherein the semi-hard magnet has coercivity at least 5 times less than the coercivity of the hard magnet.

30. A software program product as claimed in claim 15 , wherein the semi-hard magnet has coercivity at least 5 times less than the coercivity of the hard magnet.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2022
From: AXTUATOR OY
To: ILOQ OY
Reel/Frame 058642/0886 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2018
From: AXTUATOR OÜ
To: AXTUATOR OY
Reel/Frame 047072/0826 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 21, 2018
From: PUKARI, MIKA
To: AXTUATOR OÜ
Reel/Frame 047128/0978 →
Continuity (3)
Continuation 15958604 · Apr 20, 2018
Provisional Application 62633316 · Feb 21, 2018
Related Publication 20190257117A1 · Aug 22, 2019
Cited By (2)
US 12,211,328 US 12,430,966