HW-100 patented 'Harmonic Drive' question

[GerryC]

>       Out of curiosity, I want to look up the patent that Heath was
> awarded for their drive system that
> was used on their HW-100.

Are you sure it was patented?  Are you perhaps basing that on their having
used the tm symbol with the name Harmonic Drive?  That pertains to
trademark, not to patent.  (I don't recall that it was patented, although it
may have been.)

> I don't own an HW-100 and understand that
> this drive was not popular
> among the ham community due to backlash, etc.

I had a HW-100.  I guess I lucked out--  my dial drive worked smoothly.  But
I understand that many complained of wobble and backlash.

73 de W3GERry



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