The WINDWORKER was patented in Australia and overseas.
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Patent Australia
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Patent USA
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The following international patents were cited during examination.
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English 1869
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English 1894
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English 1952
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French 1909
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USA 1904
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USA 1920
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USA 1935
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USA 1943
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It can be seen that not only roof ventilators but also chimney cowls were cited as
having some resemblance to the WINDWORKER.
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Windworker
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Inventor
Ross A. Bolton
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Whilst the venturi principle has been used for considerable time, the WINDWORKER
met all the provisions for patent acceptance - novel, new and
unique.
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