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.
Freecall 1-800-807 803
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Telephone +61-7-38832495
Fax +61-7-38831807