Locking knife holder

{
  "publication_number": "US11229306B2",
  "country": "US",
  "kind": "B2",
  "title": "Locking knife holder",
  "abstract": "A locking knife holder uses either mechanical or electronic locking systems to secure the knives into the holder. The electronic locking system includes the implementation of one or more electromagnets into the holder. The user can then selectively lock or unlock the knives in the holder by activating or deactivating, respectively the electromagnet. In other implementations, the mechanical locking system can use magnetic keys to unlock the mechanical locking system.",
  "claims": [
    "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."
  ],
  "description_excerpt": "The present invention relates to knife holders and blocks for storage of knives. More particularly, it relates to a locking knife holder or block.\n\nKnife holders, or knife blocks, are designed to store knives in a safe and convenient manner. They allow for storing knives in a way that both protects the blade from damage and prevents a user from cutting themselves. However, the accessibility of all known knife holders allows anyone to remove a knife. This can be especially problematic with young children who do not understand the potential danger of knives.\n\nIn accordance with one implementation, the knife holder includes a body, at least one slot in the body for receiving at least one knife, and a locking mechanism in communication with the at least one slot and configured to selectively lock the at least one knife within the at least one slot.\n\nAccording to one implementation, the locking mechanism includes an electromagnet positioned in the body, 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.\n\nAccording to yet another implementation, the locking mechanism includes a rotating magnet disposed within body and having at least two distinct and different magnetic strengths relative to the at least one slot and thereby relative to the at least one knife. The at least two distinct magnetic strengths being determined based on a rotational position of the magnet relative to the at least one slot.",
  "cpc": [
    "A47G 21/14",
    "A47G 2200/10",
    "E05B 47/0042",
    "E05B 47/023",
    "H01F 2007/208",
    "H01F 7/0226",
    "H01F 7/0252",
    "H01F 7/04",
    "H01F 7/064",
    "H01F 7/206"
  ],
  "ipc": [
    "A47G 21/14",
    "E05B 47/00",
    "E05B 47/02",
    "H01F 7/02",
    "H01F 7/04",
    "H01F 7/06"
  ],
  "assignees": [
    "Brothers Brands Inc"
  ],
  "inventors": [
    "Jordan Schmidt"
  ],
  "filing_date": "2019-10-30",
  "publication_date": "2022-01-25",
  "grant_date": "2022-01-25",
  "priority_date": "2019-10-30",
  "application_number": "US-201916668212-A",
  "family_id": "75686652",
  "cited_by_count": 5,
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}