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British inventor James Dyson spent about five years developing a bagless vacuum cleaner that spins dust out of the air, and says 5,126 prototypes failed before one worked. When established manufacturers turned it down, he eventually sold it through his own company.

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Dyson got the idea in 1978, when he noticed that his vacuum lost suction as its bag clogged with dust. He adapted cyclone separation, a technique used in sawmills and factories, in which fast-spinning air flings dust outwards so it drops into a bin and no bag is needed. By his own account he built 5,127 prototypes and only the last one worked. British manufacturers declined the design; Dyson has said one reason was their profitable trade in replacement bags. He licensed an early version, the G-Force, in Japan, where it went on sale in 1986, and in 1993 launched his own machine, the DC01, in Britain.

Türkçe oku
İngiliz mucit James Dyson, tozu havadan döndürerek ayıran torbasız bir elektrikli süpürge üzerinde yaklaşık beş yıl çalıştı; kendi anlatımına göre işe yarayan tasarımdan önce 5.126 prototip başarısız oldu. Büyük üreticiler fikri geri çevirince süpürgeyi sonunda kendi şirketiyle piyasaya çıkardı.

Dyson'ın aklına bu fikir 1978'de, kendi süpürgesinin torbası tozla doldukça emişini yitirdiğini fark edince geldi. Kereste fabrikalarında ve sanayide kullanılan siklon ayırma yöntemini uyarladı: hızla dönen hava tozu dışarıya doğru savurur, toz bir hazneye düşer ve torbaya gerek kalmaz. Kendi anlatımına göre 5.127 prototip yaptı ve yalnızca sonuncusu işe yaradı. İngiliz üreticiler tasarımı geri çevirdi; Dyson'a göre nedenlerden biri, yedek torba satışından elde ettikleri kârdı. İlk sürüm G-Force, bir lisans anlaşmasıyla 1986'da Japonya'da satışa çıktı; Dyson 1993'te de kendi makinesi DC01'i Britanya'da piyasaya sürdü.

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Background reading: James Dyson
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