On 31 Jul 2004 15:34:24 -0700, (Ed) wrote:

I own a motorcycle and was researching how to make "diamond cuts" on
the engine fins. Diamond cuts are simply decorative cuts made in the
fin edges, using a burr by hand or with CNC, to make the engine fins
sparkle. Its been done for years by chopper customizers.

I came across this site http://www.vabiker.net/html/article86.html
from a guy who has offered this machining service. He has been hit by
a patent lawsuit from this guy at
http://ironhorsetrading.com/Diamond_Heads.htm who holds patent
6626134.

I read the patent on the government web site and what a bunch of BS!
He claims to have measured the temperature drop in the engine
resulting from the diamond cuts, and that is the basis of his patent.
Yes, there may be some minor measurable temperature difference, but
the real reason for the cuts is simply aesthetics.

What makes me so mad is that some a**hole patents the process of
cutting little chunks out of engine fins, then tries to put a fellow
American out of business.

This guy needs our support. I've written to him and got a nice reply.
I have no affiliation – I'm just PO'ed at what is going on here.
Maybe I should patent the process of making holes in metal and wood.

eferg

What exactly is "diamond cut". According to the claim it has to have
two longitudinal cuts and cross hatching . Is that what diamond cut
is? Seems weak , I'd check it out real good and send him an LOL
letter. Like go for it , I have a good 20 people that can testify this
is prior art. Oh, it just says that it is on the cooling fin , nothing
about the design has to be for cooling. The first claim is its
envelope. For some reason I can't get the drawings. I'd also get a
copy of all the prior art he sited and read their first claims, ect.
Got to go.