Locking knife holder

1. A knife holder comprising:

a body having a block having a front surface;

a magnetic locking mechanism in communication with the front surface of the block and configured to selectively lock at least one knife blade against the front surface of the block, the magnetic locking mechanism having at least two distinct magnetic strength levels, a first of said at least two distinct magnetic strengths being high enough to prevent removal of the at least one knife blade from the front surface of the block, and a second of said at least two distinct magnetic strengths being high enough to retain the at least one knife blade against the front surface of the block and low enough to enable the at least one knife blade to be removed from the block by hand.

2. The knife holder of claim 1 , wherein the magnetic locking mechanism comprises:

an electromagnet positioned in the body and configured to produce the first distinct magnetic strength;

a power source within the body and electrically connected to the electromagnet; and

a switch accessible from outside the body and electrically connected to the power source and electromagnet.

3. A knife holder comprising:

a body having a front surface; and

a rotating magnet disposed within body and having at least two distinct and different magnetic strengths relative to each other and the front surface, the at least two distinct magnetic strengths being determined based on a rotational position of the magnet relative to the front surface, such that in one predetermined rotational position a first of said two distinct magnetic strengths is high enough to prevent removal of a knife from the front surface by hand, and in a second predetermined rotational position, a second of said two distinct magnetic strengths is lower than the first distinct magnetic strength such that the knife is magnetically retained against the front surface of the body yet can be removed from the front surface by hand.

4. The knife holder of claim 3 , further comprising a knob external to the body and connected to the rotating magnet, the knob enabling a user to manually rotate the magnet.

5. The knife holder according to claim 3 , further comprising:

a motor connected to the rotating magnet;

a power supply connected to the motor; and

a switch accessible from outside the body and connected to the motor and power supply and configured to rotate the magnet between the at least two distinct and different magnetic strengths.

6. The knife holder according to claim 2 , further comprising at least one permanent magnet positioned in the block and configured to hold the at least one knife against the front surface of the block when the electromagnet is deactivated, said permanent magnet being the second of said at least two distinct magnetic strengths, the second magnetic strength being lower than the first magnetic strength to allow for removal of the at least one knife from the block.

7. The knife holder of claim 2 , further comprising wireless communication circuitry positioned in the body and configured to enable the knife holder to be connected to and communicate with a user's home network, said wireless communication circuitry enabling a user to remotely determine a locked status of the locking mechanism.

8. A knife holder comprising:

a body having a front surface;

electronic circuitry inside the body;

at least one permanent magnet within the body, the at least one permanent magnet magnetically securing a knife blade against the front surface with a first magnetic strength;

at least one electromagnet electrically coupled to the circuitry and when activated further magnetically securing the knife blade against the front surface with a second magnetic strength without mechanically engaging the knife blade;

a switch electrically coupled to the circuitry and the at least one electromagnet and configured to selectively activate and deactivate the at least one electromagnet; and

wherein the first magnetic strength is lower than the second magnetic strength, such that the knife blade stays attached to the front surface of the body under the first magnetic strength and can only be removed from the front surface by hand when the second magnetic strength of the electromagnet is deactivated and cannot be removed from the front surface of the body by hand when the second magnetic strength of the at least one electromagnet is activated.

9. The knife holder of claim 1 , further comprising a front clear portion spaced from the front surface of the block to create a slot that receives the a at least one knife blade such that the at least one knife blade magnetically adhered to the front surface of the block is visible from the front of the block.