Dyson Technology Limited

The Dyson Corporation

James Martin Coleman

Adam James Bates

Patrick Joseph William Moloney

Robert Mark Brett Coulton

Stuart James Steele

Rodney James Brown

Peter David Gammack

James Dyson

Christopher Graham Vincent

Paul Barry Reid

James John Bryden

Simon Peter Cross

Robert Tweedie

Robert Coulton

Thomas Follows

Andrew Walton

Simon Cross

A cylinder vacuum cleaner comprising a main body which is fluidly connected to a suction hose used to pull the main body forwards along a floor, and a rear swivel castor for supporting the main body on the floor, the rear castor having a negatively-raked swivel axis which is offset from a wheel axis of the castor to provide a positive castor trail.

Cylinder vacuum cleaner

A cylinder vacuum cleaner comprising a main body which is fluidly connected to a suction hose used to pull the main body forwards along a floor, and a front swivel castor for supporting the main body on the floor, the front castor comprising a frame mounted for rotation about a swivel axis and one or more wheels mounted on the frame, the hose being connected to the frame for co-rotation with the frame about the swivel axis, wherein the swivel axis is positively raked.

A cleaner head that includes a suction inlet for admitting a first airflow, a turbine inlet for admitting a second airflow, an outlet for discharging the first airflow and the second airflow and an agitator and its drive assembly. A first airflow path then carries the first airflow from the suction inlet to the outlet, and a second airflow path carries the second airflow from the turbine inlet to the outlet. The drive assembly includes a turbine that is driven by the second airflow. A baffle is located in the second airflow path and is movable between an open position in which the second airflow path is unrestricted and a closed position in which the second airflow path is restricted. The baffle is biased in the open position and moves to the closed position when the dynamic pressure of the second airflow at the baffle exceeds a threshold.

Cleaner head for a vacuum cleaner

An upright cleaning appliance having a handle for maneuvering the appliance across a floor. The handle is secured on a reclining upright body of the appliance for rotation about a longitudinal axis of the upright body. The handle includes a forward-extending handgrip portion which terminates in an abutment flange for preventing the handgrip portion from slipping out through the bottom of a user's grip.

Upright cleaning appliance

A vacuum cleaning head includes a housing having an agitator in the form of a brush bar rotatably arranged in a chamber having an air inlet and an air outlet and also includes an air turbine for driving the brush bar is provided. The air turbine has its own air inlet for admitting clean air to drive the turbine. A restricting member is arranged in the outlet of the chamber so as to restrict the cross-section of the outlet when the head is pressed against a surface to be cleaned and to restrict the flow of air from the brush bar chamber. The restricting member is designed to distribute incoming air between the main inlet and the turbine inlet in a satisfactory ratio. Thus, more air flows through the turbine, enabling it to drive the brush bar at high rotational speed.

Vacuum cleaning head

Accessory for a cleaning appliance

Growing community of inventors

Malmesbury, United Kingdom

James Martin Coleman