Patents by Inventor Man Kin Tsa

Man Kin Tsa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Knife grinder
    Patent number: 7828629
    Abstract: A knife grinder comprises a housing, wherein a grinding mechanism is arranged. A magnetic body is arranged under the grinding mechanism to attract metal scraps. Since the magnetic body is arranged under the opening, the knife grinder allows the metal scraps to be fully attracted to the bottom of the housing, thereby maintaining a clean environment during the grinding process.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: November 9, 2010
    Assignee: Lico (HK) Manufacturing Ltd.
    Inventor: Man Kin Tsa
  • Knife grinder
    Publication number: 20100203812
    Abstract: A knife grinder comprises a housing, wherein a grinding mechanism is arranged. A magnetic body is arranged under the grinding mechanism to attract metal scraps. Since the magnetic body is arranged under the opening, the knife grinder allows the metal scraps to be fully attracted to the bottom of the housing, thereby maintaining a clean environment during the grinding process.
    Type: Application
    Filed: February 10, 2009
    Publication date: August 12, 2010
    Inventor: Man Kin Tsa