rotary disc interupter

["Dan Kunkel" <dankunkel-at-hotmail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

All,

a thought occured to me. use the disc in conjunction with an air blast. in 
other words don't use the slots to break the spark, use the slots to pulse 
an air jet. no more wear on the disc with this method, in fact you could put 
wedges or "blades" on the disc so that the air stream would cause it to 
rotate and an electric motor would be obsolete.

dan
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