Patents by Inventor David Colin Worker

David Colin Worker 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: 11368071
    Abstract: An electric drive includes a motor and a transmission for transferring torque from the motor to a tool. The transmission includes a plurality of planetary rollers which are driven by a rotary shaft of the motor, and an output ring which is connectable to the tool, and which is driven by the planetary rollers. The transmission further includes a roller casing which is secured to a housing of the motor, and which supports parallel planetary shafts upon which the planetary rollers are mounted for rotation relative to the roller casing, and a bearing having an inner race which engages the roller casing, and an outer race which engages the inner periphery of the output ring.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: June 21, 2022
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, Richard Iain Mockridge
  • Publication number: 20210036578
    Abstract: An electric drive includes a motor and a transmission for transferring torque from the motor to a tool. The transmission includes a plurality of planetary rollers which are driven by a rotary shaft of the motor, and an output ring which is connectable to the tool, and which is driven by the planetary rollers. The transmission further includes a roller casing which is secured to a housing of the motor, and which supports parallel planetary shafts upon which the planetary rollers are mounted for rotation relative to the roller casing, and a bearing having an inner race which engages the roller casing, and an outer race which engages the inner periphery of the output ring.
    Type: Application
    Filed: February 18, 2019
    Publication date: February 4, 2021
    Applicant: Dyson Technology Limited
    Inventors: David Colin WORKER, Richard Iain MOCKRIDGE
  • Patent number: 9204770
    Abstract: A cleaner head for a cleaning appliance includes a housing having an upper surface and an underneath surface in which at least on suction opening is formed. The underneath surface has opposing side edges each having a first part which lies adjacent the suction opening or openings and forms a sharply-defined edge with the upper surface and an upwardly curved second part which is located rearwardly of the suction opening or openings. This arrangement is advantageously used in vacuum cleaners or other cleaning appliances in which a ball-type support allows an increased level of steerability involving lateral movement of the cleaner head across the surface to be cleaned. The upwardly curved side edges of the underneath surface of the cleaner head reduce the amount of effort required to achieve the steering by presenting a smoothly curved surface to the carpet or other floor covering.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: December 8, 2015
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, James Dyson
  • Patent number: 8966708
    Abstract: A surface-treating appliance includes a main body, a surface-treating head and a support assembly. The support assembly is moveable out of a supporting position in which it supports the main body by a user performing a plurality of steps—for example, by depressing a pedal, then tilting the main body by pulling the handle. This arrangement reduces the likelihood of accidental release of the support assembly from its supporting position. For example, if the user depresses the pedal alone, or only pulls on the handle, the support assembly remains in its supporting position.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: March 3, 2015
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Patent number: 8769765
    Abstract: A surface treating appliance, such as a vacuum cleaner, includes a device generating a flow of fluid in the form of a motor and fan, housed in a main body. A hose and wand assembly, a surface treating head and a rotary change over valve are also provided. The valve is selectively rotatable so as to allow fluid flow from either the surface-treating head or the hose. A support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The change over valve and support assembly are arranged so that motion of the support assembly between the supporting and retracted positions induces rotary motion of the change over valve.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 8, 2014
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Patent number: 8522396
    Abstract: A surface-treating appliance, such as a vacuum cleaner, has a main body and a support assembly. The support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The support assembly includes a user-operable pedal, a component such as a stand and an actuator arranged to act on one of the pedal and the component over a first range of positions between the supporting and retracted positions and to act on the other of the pedal and the component over a second range of positions between the supporting and retracted positions. This arrangement brings the pedal and component positively into and out of the supporting and retracted positions.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: September 3, 2013
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Patent number: 8425642
    Abstract: The present invention relates to a cyclonic separating apparatus and a vortex finder plate for use in a cyclonic separating apparatus, the vortex finder plate including a support structure and a plurality of vortex finder support flaps extending from the support structure, each vortex finder support flap comprising a vortex finder. At least one of the vortex finder support flaps is connected to the support structure by a hinge.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: April 23, 2013
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, Oliver Henry Sherston Chambers
  • Publication number: 20130007980
    Abstract: A surface treating appliance, such as a vacuum cleaner, includes a device generating a flow of fluid in the form of a motor and fan, housed in a main body. A hose and wand assembly, a surface treating head and a rotary change over valve are also provided. The valve is selectively rotatable so as to allow fluid flow from either the surface-treating head or the hose. A support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The change over valve and support assembly are arranged so that motion of the support assembly between the supporting and retracted positions induces rotary motion of the change over valve.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: Dyson Technology Limited
    Inventors: David Colin WORKER, Nicholas Timothy SPENCE
  • Patent number: 8327503
    Abstract: A surface treating appliance, such as a vacuum cleaner, includes a device generating a flow of fluid in the form of a motor and fan, housed in a main body. A hose and wand assembly, a surface treating head and a rotary change over valve are also provided. The valve is selectively rotatable so as to allow fluid flow from either the surface-treating head or the hose. A support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The change over valve and support assembly are arranged so that motion of the support assembly between the supporting and retracted positions induces rotary motion of the change over valve.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: December 11, 2012
    Assignee: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Patent number: 8257457
    Abstract: The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage, a second cyclonic cleaning stage arranged downstream from the first cyclonic cleaning stage, and an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 4, 2012
    Assignee: Dyson Technology Limited
    Inventors: Lucas Horne, Matthew Robert Jupe, David Colin Worker, Guillaume Kristian Steadman
  • Publication number: 20120167337
    Abstract: The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage, a second cyclonic cleaning stage arranged downstream from the first cyclonic cleaning stage, and an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.
    Type: Application
    Filed: March 7, 2012
    Publication date: July 5, 2012
    Applicant: Dyson Technology Limited
    Inventors: Lucas HORNE, Matthew Robert Jupe, David Colin Worker, Guillaume Kristian Steadman
  • Patent number: 8182563
    Abstract: The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage, a second cyclonic cleaning stage arranged downstream from the first cyclonic cleaning stage, and an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 22, 2012
    Assignee: Dyson Technology Limited
    Inventors: Lucas Horne, Matthew Robert Jupe, David Colin Worker, Guillaume Kristian Steadman
  • Publication number: 20110209447
    Abstract: The present invention relates to a cyclonic separating apparatus and a vortex finder plate for use in a cyclonic separating apparatus, the vortex finder plate including a support structure and a plurality of vortex finder support flaps extending from the support structure, each vortex finder support flap comprising a vortex finder. At least one of the vortex finder support flaps is connected to the support structure by a hinge.
    Type: Application
    Filed: February 18, 2011
    Publication date: September 1, 2011
    Applicant: Dyson Technology Limited
    Inventors: David Colin Worker, Oliver Henry Sherston Chambers
  • Publication number: 20100242221
    Abstract: The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage, a second cyclonic cleaning stage arranged downstream from the first cyclonic cleaning stage, and an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: DYSON TECHNOLOGY LIMITED
    Inventors: Lucas HORNE, Matthew Robert Jupe, David Colin Worker, Guillaume Kristian Steadman
  • Publication number: 20100236015
    Abstract: A surface-treating appliance includes a main body, a surface-treating head and a support assembly. The support assembly is moveable out of a supporting position in which it supports the main body by a user performing a plurality of steps—for example, by depressing a pedal, then tilting the main body by pulling the handle. This arrangement reduces the likelihood of accidental release of the support assembly from its supporting position. For example, if the user depresses the pedal alone, or only pulls on the handle, the support assembly remains in its supporting position.
    Type: Application
    Filed: September 14, 2007
    Publication date: September 23, 2010
    Applicant: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Publication number: 20100095477
    Abstract: A surface-treating appliance, such as a vacuum cleaner, has a main body and a support assembly. The support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The support assembly includes a user-operable pedal, a component such as a stand and an actuator arranged to act on one of the pedal and the component over a first range of positions between the supporting and retracted positions and to act on the other of the pedal and the component over a second range of positions between the supporting and retracted positions. This arrangement brings the pedal and component positively into and out of the supporting and retracted positions.
    Type: Application
    Filed: September 14, 2007
    Publication date: April 22, 2010
    Applicant: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Publication number: 20100088842
    Abstract: A surface treating appliance, such as a vacuum cleaner, includes a device generating a flow of fluid in the form of a motor and fan, housed in a main body. A hose and wand assembly, a surface treating head and a rotary change over valve are also provided. The valve is selectively rotatable so as to allow fluid flow from either the surface-treating head or the hose. A support assembly is moveable between a supporting position, in which it supports the main body, and a retracted position. The change over valve and support assembly are arranged so that motion of the support assembly between the supporting and retracted positions induces rotary motion of the change over valve.
    Type: Application
    Filed: September 14, 2007
    Publication date: April 15, 2010
    Applicant: Dyson Technology Limited
    Inventors: David Colin Worker, Nicholas Timothy Spence
  • Publication number: 20080222840
    Abstract: A cleaner head for a cleaning appliance includes a housing having an upper surface and an underneath surface in which at least on suction opening is formed. The underneath surface has opposing side edges each having a first part which lies adjacent the suction opening or openings and forms a sharply-defined edge with the upper surface and an upwardly curved second part which is located rearwardly of the suction opening or openings. This arrangement is advantageously used in vacuum cleaners or other cleaning appliances in which a ball-type support allows an increased level of steerability involving lateral movement of the cleaner head across the surface to be cleaned. The upwardly curved side edges of the underneath surface of the cleaner head reduce the amount of effort required to achieve the steering by presenting a smoothly curved surface to the carpet or other floor covering.
    Type: Application
    Filed: December 28, 2005
    Publication date: September 18, 2008
    Applicant: Dyson Technology Limited
    Inventors: David Colin Worker, James Dyson