Patents by Inventor Benson Chun Kit Cheung

Benson Chun Kit Cheung 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).

  • Patent number: 11419465
    Abstract: A handheld vacuum cleaner includes a main body with a handle extending along a handle axis. The handheld vacuum cleaner also includes a motor assembly positioned within the main body. The handle axis intersects the motor assembly. The handheld vacuum cleaner also includes a dirty air inlet positioned at a front of the handheld vacuum cleaner and extending along an inlet axis. In addition, the handheld vacuum cleaner includes a cyclonic chamber in fluid communication with the dirty air inlet and the motor assembly. The cyclonic chamber defines a separator axis. The inlet axis and the separator axis intersect to form an acute angle extending between the dirty air inlet and the cyclonic chamber. The inlet axis and the handle axis intersect to form an obtuse angle extending between the dirty air inlet and the handle.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: August 23, 2022
    Assignee: Techtronic Floor Care Technology Limited
    Inventors: Alvin Au Yeuk Yuen, Benson Chun Kit Cheung, Mohammed Irfan, Somnanritha Chan, Yao Xiyin
  • Patent number: 11363921
    Abstract: A handheld vacuum cleaner (10), including a main body (22) having a handle (98), a motor assembly (114) positioned within the main body, and a cyclonic separator assembly (26) removably coupled to the main body. The cyclonic separator assembly includes an inlet nozzle (42) having a dirty air inlet (14) positioned in the front of the handheld vacuum cleaner when the cyclonic separator assembly is coupled to the main body, and a cyclonic chamber (30) in fluid communication with the dirty air inlet. The cyclonic chamber defines a separator axis (34). The cyclonic separator assembly further includes a dirt collection region (38) configured to receive debris separated in the cyclonic chamber. The inlet nozzle includes an upstream height (270) measured perpendicular to the inlet axis and a downstream height (274) measured parallel to the separator axis. The downstream height is larger than the upstream height.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: June 21, 2022
    Assignee: Techtronic Floor Care Technology Limited
    Inventors: Alvin Au Yeuk Yuen, Benson Chun Kit Cheung
  • Publication number: 20190183304
    Abstract: A handheld vacuum cleaner (10), includes a main body (22), a motor assembly (114) positioned within the main body, and a dirty air inlet (14) positioned at a front of the handheld vacuum cleaner and extending along an inlet axis (46). The handheld vacuum cleaner also includes a cyclonic chamber (30) in fluid communication with the dirty air inlet and the motor assembly. The cyclonic chamber defines a separator axis (34). The inlet axis and the separator axis intersect to form an acute angle (214) extending between the dirty air inlet and the cyclonic chamber. The acute angle is within the range of 20 to 60 degrees such that when the handheld vacuum cleaner is operated in a normal operating condition with the dirty air inlet pointed downwardly the separator axis is oriented vertically.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 20, 2019
    Inventors: Alvin Au Yeuk YUEN, Benson Chun Kit CHEUNG
  • Publication number: 20190183303
    Abstract: A handheld vacuum cleaner (10) includes a main body (22) with a handle (98) extending along a handle axis (110). The handheld vacuum cleaner (10) also includes a motor assembly (114) positioned within the main body (22). The handle axis (110) intersects the motor assembly (114). The handheld vacuum cleaner (10) also includes a dirty air inlet (14) positioned in the front of the handheld vacuum cleaner (10) and extending along an inlet axis (46). In addition, the handheld vacuum cleaner (10) includes a cyclonic chamber (30) in fluid communication with the dirty air inlet (14) and the motor assembly (114). The cyclonic chamber (30) defines a separator axis (34). The inlet axis (46) and the separator axis (34) intersect to form an acute angle (214) extending between the dirty air inlet (14) and the cyclonic chamber (30). The inlet axis (46) and the handle axis(110) intersect to form an obtuse angle (250) extending between the dirty air inlet (14) and the handle (98).
    Type: Application
    Filed: February 27, 2017
    Publication date: June 20, 2019
    Inventors: Alvin Au Yeuk YUEN, Benson Chun Kit CHEUNG, Mohammed Irfan, Ritha Chan, Yao Xiyin
  • Publication number: 20190183300
    Abstract: A handheld vacuum cleaner (10), including a main body (22) having a handle (98), a motor assembly (114) positioned within the main body, and a cyclonic separator assembly (26) removably coupled to the main body. The cyclonic separator assembly includes an inlet nozzle (42) having a dirty air inlet (14) positioned in the front of the handheld vacuum cleaner when the cyclonic separator assembly is coupled to the main body, and a cyclonic chamber (30) in fluid communication with the dirty air inlet. The cyclonic chamber defines a separator axis (34). The cyclonic separator assembly further includes a dirt collection region (38) configured to receive debris separated in the cyclonic chamber. The inlet nozzle includes an upstream height (270) measured perpendicular to the inlet axis and a downstream height (274) measured parallel to the separator axis. The downstream height is larger than the upstream height.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 20, 2019
    Inventors: Alvin Au Yeuk YUEN, Benson Chun Kit CHEUNG
  • Patent number: D501385
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: February 1, 2005
    Assignee: One World Technologies Limited
    Inventors: Benson Chun Kit Cheung, Daniel Alex Chunn, Frank Lenz
  • Patent number: D504394
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: April 26, 2005
    Assignee: One World Technologies Limited
    Inventors: Benson Chun Kit Cheung, Daniel Alex Chunn
  • Patent number: D506436
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: June 21, 2005
    Assignee: One World Technologies Limited
    Inventors: Benson Chun Kit Cheung, Daniel Alex Chunn
  • Patent number: D514507
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: February 7, 2006
    Assignee: One World Technologies Limited
    Inventors: Benson Chun Kit Cheung, Daniel Alex Chunn
  • Patent number: D521337
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: May 23, 2006
    Assignee: One World Technologies Limited
    Inventors: Benson Chun Kit Cheung, Daniel Alex Chunn, Frank Lenz
  • Patent number: D461696
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: August 20, 2002
    Assignee: TechTronic Industries Co., Ltd.
    Inventors: Daniel A. Chunn, Meily Siu Mei Chan, Felix Hei Shun Leung, Benson Chun Kit Cheung
  • Patent number: D462249
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 3, 2002
    Assignee: TechTronic Industries Co., LTD
    Inventors: Daniel A. Chunn, Meily Siu Mei Chan, Felix Hei Shun Leung, Benson Chun Kit Cheung
  • Patent number: D467146
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: December 17, 2002
    Assignee: One World Technologies, Limited
    Inventors: Daniel Alex Chunn, Benson Chun Kit Cheung
  • Patent number: D470737
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: February 25, 2003
    Assignee: One World Technologies Limited
    Inventors: Daniel Alex Chunn, Benson Chun Kit Cheung
  • Patent number: D472439
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: April 1, 2003
    Assignee: One World Technologies Limited
    Inventors: Daniel Alex Chunn, Benson Chun Kit Cheung
  • Patent number: D472779
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: April 8, 2003
    Assignee: One World Technologies, Limited
    Inventors: Daniel Alex Chunn, Benson Chun Kit Cheung
  • Patent number: D476542
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: July 1, 2003
    Assignee: One World Technologies Limited
    Inventors: Daniel Alex Chunn, Benson Chun Kit Cheung
  • Patent number: D488978
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: April 27, 2004
    Assignee: One World Technologies
    Inventor: Benson Chun Kit Cheung
  • Patent number: D491438
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: June 15, 2004
    Assignee: One World Technologies, Limited
    Inventors: Benson Chun Kit Cheung, Daniel Alex Chunn, Thomas Kam Kee Wong
  • Patent number: D494034
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: August 10, 2004
    Assignee: One World Technologies, Limited
    Inventor: Benson Chun Kit Cheung