<Tr> <Th> Net worth </Th> <Td> £ 340m </Td> </Tr> <Tr> <Th> Awards </Th> <Td> Officer of the Order of the British Empire </Td> </Tr> <P> James William "Jimi" Heselden OBE (27 March 1948--26 September 2010) was a British entrepreneur . A former coal miner, Heselden made his fortune manufacturing the Hesco bastion barrier system . In 2010, he bought Segway Inc., maker of the Segway personal transport system . Heselden died in 2010 from injuries apparently sustained falling from a cliff while riding his own product . His estate, bequeathed to his widow and family, was worth over £ 340 million and he was ranked in the top 400 members of the Sunday Times Rich List . </P> <P> Heselden grew up in the Halton Moor district of Leeds, West Yorkshire, England . At the age of 15, Heselden left Osmondthorpe Secondary Modern School to work as a labourer and then at collieries in Temple Newsam and Lofthouse . He lost his job in the wave of redundancies that followed the 1984--85 miners' strike and spent his redundancy money on renting a workshop and, at first, setting up a sandblasting business . He then worked on developing and patenting a collapsible wire mesh and fabric container, now called Hesco bastion, to be used for building flood management and to limit erosion . </P>

Owner of what company died after driving off cliff