Patents Assigned to Grey Technology Limited
  • Publication number: 20200029761
    Abstract: The invention relates to a cleaning head (sometimes called a “suction head”) for a vacuum cleaner, and in particular to a cleaning head having a motor to rotate a brush carried by the cleaning head. According to the invention there is provided a cleaning head (10) having a steering joint, the steering joint having a non-rotatable section (26) and a rotatable section (24) with a rotatable joint (20) between the non-rotatable section and the rotatable section. The cleaning head has a first holding region (52) which is engageable by a first part (50) of the rotatable section (24), the first holding region and the first part when engaged resisting rotation of the rotatable section. The cleaning head also has a second holding region (54) which is engageable by a second part (50) of the rotatable section (24), the second holding region and the second part when engaged resisting rotation of the rotatable section.
    Type: Application
    Filed: September 26, 2017
    Publication date: January 30, 2020
    Applicant: Grey Technology Limited
    Inventors: Jack KNIGHT ADAMS, Ross EXLEY
  • Patent number: 9737183
    Abstract: A vacuum cleaner is described, and in particular a battery-powered vacuum cleaner including a rotatable brush.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: August 22, 2017
    Assignee: GREY TECHNOLOGY LIMITED
    Inventor: Nicholas Gerald Grey
  • Patent number: 9560944
    Abstract: This invention relates to a vacuum cleaner (10), and in particular a vacuum cleaner (10) having a rotatable brush (24). The vacuum cleaner (10) has a travelling head (12) adapted to be moved across a surface to be cleaned, the travelling head (12) having a leading end (28) and a trailing end. The travelling head (12) has a rotatable brush (24), the rotatable brush (34) being located in a brush chamber (23) at the leading end of the travelling head (12), the brush chamber (34) having an opening (26) through which a part of the rotatable brush (24) projects, the opening (26) and the rotatable brush (24) spanning substantially the full width of the travelling head (12). The travelling head (12) also has an impeller (46), and a motor (34) for driving the rotatable brush (34) and the impeller (46).
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 7, 2017
    Assignee: GREY TECHNOLOGY LIMITED
    Inventor: Nicholas Gerald Grey
  • Publication number: 20130291333
    Abstract: This invention relates to a vacuum cleaner (10), and in particular a vacuum cleaner (10) having a rotatable brush (24). The vacuum cleaner (10) has a travelling head (12) adapted to be moved across a surface to be cleaned, the travelling head (12) having a leading end (28) and a trailing end. The travelling head (12) has a rotatable brush (24), the rotatable brush (34) being located in a brush chamber (23) at the leading end of the travelling head (12), the brush chamber (34) having an opening (26) through which a part of the rotatable brush (24) projects, the opening (26) and the rotatable brush (24) spanning substantially the full width of the travelling head (12). The travelling head (12) also has an impeller (46), and a motor (34) for driving the rotatable brush (34) and the impeller (46).
    Type: Application
    Filed: December 21, 2011
    Publication date: November 7, 2013
    Applicant: GREY TECHNOLOGY LIMITED
    Inventor: Nicholas Gerald Grey
  • Patent number: 7802343
    Abstract: A suction head for a vacuum cleaner comprises a hollow body including a pair of arms (1, 3) which diverge from predetermined region of the body at an acute angle. Each arm is formed with a channel (14) for the passage of air. An outlet opening (5) is located in the region of the body from which the arms diverge for the passage of air to a vacuum cleaner. A first continuous ground-engaging barrier (21) extends along the region of an inner edge (19) of one of the arms (1). A second continuous ground-engaging barrier (21) extends along the region of an inner edge (19) of the other of the arms (3). A gap (23) is formed between the first and second barriers (21) for the passage of relatively large particles of debris into the suction head.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: September 28, 2010
    Assignee: Grey Technology Limited
    Inventor: Nicholas Gerald Grey
  • Patent number: 7331078
    Abstract: A surface cleaning apparatus comprises a body including a rear compartment, a forward compartment and an intermediate compartment arranged between the rear and forward compartments. An elongate rotatable brush arrangement is positioned within and extends across the forward compartment. An electric motor is positioned in the rear compartment, and drive means extends between the rotatable brush arrangement and the electric motor.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: February 19, 2008
    Assignee: Grey Technology Limited
    Inventor: Nicholas Gerald Grey
  • Publication number: 20050241156
    Abstract: A trimming apparatus having a handle attached to a rotatable cutting head. The cutting head includes a motor and a rotatable cutting edge. Shielding members adapted to protect a hand of a user are also attached to the handle.
    Type: Application
    Filed: February 28, 2005
    Publication date: November 3, 2005
    Applicant: Grey Technology Limited
    Inventor: Nicholas Grey
  • Publication number: 20050204492
    Abstract: A surface cleaning apparatus comprising a cleaning body and collection compartment for accumulating debris retrieved from a surface to be cleaned. The collection compartment is located in a front portion of the cleaning apparatus. A handle is pivotably connected to a rear portion of the cleaning body of the surface cleaning apparatus opposite the first end portion. A rotatable elongate brush arrangement is provided between the collection compartment and the rear portion. A motor for rotating the brush arrangement is provided between the brush arrangement and the rear portion of the cleaning body.
    Type: Application
    Filed: December 3, 2004
    Publication date: September 22, 2005
    Applicant: Grey Technology Limited
    Inventor: Nicholas Grey
  • Patent number: D506653
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: June 28, 2005
    Assignee: Grey Technology Limited
    Inventor: Christopher Thomas Elsworthy
  • Patent number: D554814
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: November 6, 2007
    Assignee: Grey Technology Limited
    Inventor: Nicholas Gerald Grey
  • Patent number: D568008
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: April 29, 2008
    Assignee: Grey Technology Limited
    Inventor: Nicholas Gerald Grey
  • Patent number: D588758
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: March 17, 2009
    Assignee: Grey Technology Limited
    Inventor: Christopher Vagges
  • Patent number: D591917
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: May 5, 2009
    Assignee: Grey Technology Limited
    Inventor: Andrew Kent
  • Patent number: D591918
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: May 5, 2009
    Assignee: Grey Technology Limited
    Inventor: Christopher Vagges
  • Patent number: D598262
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 18, 2009
    Assignee: Grey Technology Limited
    Inventor: Nicholas Gerald Grey