Patents by Inventor Kevin Kam Hoi Ma

Kevin Kam Hoi Ma 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).

  • Manual floor sweeper
    Patent number: 6912753
    Abstract: A manual floor sweeper includes a housing and a brush roller mounted within the housing and rotatable in a sweeping direction. A first drive member is fixed to the brush roller. A second drive member is mounted rotatably with the housing and engagable with the first drive member. A drive carriage is movable between a first position for engaging the first drive wheel when the sweeper is moved in a first direction so as to rotate the brush roller in the sweeping direction and a second position when the sweeper is moved in a second direction for engaging the second drive member so as to move the brush roller in the sweeping direction.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: July 5, 2005
    Assignee: Techtronic Industries Co., Ltd.
    Inventors: Timmy Hok Yin Sin, Chiu Fai Hui, Kevin Kam Hoi Ma
  • Manual floor sweeper
    Publication number: 20040205915
    Abstract: A manual floor sweeper includes a housing and a brush roller mounted within the housing and rotatable in a sweeping direction. A first drive member is fixed to the brush roller. A second drive member is mounted rotatably with the housing and engagable with the first drive member. A drive carriage is movable between a first position for engaging the first drive wheel when the sweeper is moved in a first direction so as to rotate the brush roller in the sweeping direction and a second position when the sweeper is moved in a second direction for engaging the second drive member so as to move the brush roller in the sweeping direction.
    Type: Application
    Filed: December 5, 2003
    Publication date: October 21, 2004
    Applicant: Techtronic Industries Co., Ltd.
    Inventors: Timmy Hok Yin Sin, Chiu Fai Hui, Kevin Kam Hoi Ma