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Diagram of a ballbarrow from James Dyson's 1977 patent

The Ballbarrow was a variation of the wheelbarrow design, by James Dyson and was released in 1974 in the UK. It featured a moulded plastic hopper on a steel frame and a spherical plastic wheel, allowing increased maneuverability; Compared to a conventional design, Dyson said the larger surface area of the ball made the wheelbarrow easier to use in soft soil, and more laterally stable with heavy loads on uneven ground.[1]

The original design featured a galvanised steel hopper. Later, the design was changed to a plastic hopper, with an optional clip-on height-extension piece.[2]

The Ballbarrow won the Building Design Innovation Award in 1977.[3] Dyson continued with the ball-wheel concept in his design for the Trolleyball boat launcher in 1978, and the DC15 vacuum cleaner in 2005.