Any reason why not vegetable oil?
From the research done so far, most people are saying ok to vegetable and flaxseed oil and no to canola/olive oil.
Reason behind silicon? beaks surface tension? explanation would be great thanks!
T
Ask my lawyer
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or my girl; she is really pissed
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Failing that line of offense there is always me
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brilliant thread and lots has been learned!
however, on the issue of patents being valid, lets be realistic ...
a brewer consists of a few basic 'off the shelf' items ...
a vessel such as the conical bioreactors sold at places like tank depot ...
an aquarium airpump ...
some piping bought from a hardware store ..
and a diffuser/airstone as used in an aquarium (some people who have patented brewers use fancy names such as 'bubble generator' etc but it's not a new invention, it's a bog standard airstone
the whole concept of the apparatus is ancient technology .... the Romans used airlift systems ... The first airlift pump is considered to be invented by the German engineer Carl Emanuel Löscher (de), who lived in the second part of the eighteenth century. He discovered the airlift pump technology in 1797.
http://en.wikipedia.org/wiki/Airlift_pump
airlift aeration has been used for years in the sewrage/wastewater industry aswell as koi fishponds and fish hatcheries... so nothing new there
the process of creating ACT is also not new technology, and was described and practised as early as 1924 when Rudolf Steiner stirred his conconctions to aerate them
The Koreans have been farming using microbes for centuries ....
http://www.youtube.com/watch?v=xOO1_jNKbKw
and the chinese even longer
so, to be honest, even though a patent is granted, should it ever be contested in court, it will be overturned, unless you invent something totally new (a new piece of equipment that has not been invented yet)
there are many patents on the brewers .... they are all the same thing really ... i9t's like trying to patent a fishtank ... because that is all it really is
what guys are trying to do, is stopping other people from building brewers and selling them .... they are trying to get royalties and trying to patent the 'process' which is ancient technology...
breeding microbes using aeration is even used in the petrochem industry
and I very much doubt that anyone who holds one of these patents has actually won a court case ....
just saying