Vintage Boat Company's Of Yesteryear...

[Amberjack1234]

When did bertram leave Miami?

I believe Bertram was owned by the Ferretti group up until 2015 and then was acquired by the Gavio got group around that time. They acquired a facility from what I can find out in Tampa in 2016 and I’ve been building their yachts over there. I believe they are going to build a new facility near the port of Tampa to expand their production. I think more information can be obtained from the Tampa chamber of commerce.

[mr fun]

I belive there are pictures of Don Aaronow standing one of these on it's tail prievious to him starting Formula in a Bimini Race

[powerabout]

Ferreti trashed Bertram, good to know they sold it

[ctobias1984]

I wish they made more than 2 or 3 of these Cats, what a gorgeous hull.

[Rick Pierce]

Speedliner had this hull long before this patent existed.

...Howard W. Pipkorn - Inventor - 1986 -

[NICE PAIR]

[David]

Speedliner had this hull long before this patent existed.

do you have the whole patent? I would like to read it

[keith scotton]

You can go to the US patent web site and look it up by the number on it. 4672905 all 7 pages of it.
Enjoy Life Keith

[Jimboat]

do you have the whole patent? I would like to read it

send me an email and i will send you the pipkorn patent (#4,672,905)...

[David]

Thanks Jim!

[David]

Patents are interesting. My name is on a few, none that ever made it to production. I was involved in a big patent dispute once and successfully fought off an attempt by company X to charge my then employer royalties. Ironically, I had worked for company X before, and wound up working for X again. It's business, not personal.

From my engineering days, I often thought that patents were given out too easily for stuff that wasn't that novel. I also found that it was often relatively easy to work around patents. A patent must be incredibly broad to be enforceable.

I kind of wonder about the Hydrostream XT patent. I don't think it was the first needle nose V bottom with training wheels, and that's not what is claimed. A detailed design comparison with some of the competitors would be fascinating.

[David]

[David]

[Jimboat]

I kind of wonder about the Hydrostream XT patent. I don't think it was the first needle nose V bottom with training wheels, and that's not what is claimed. A detailed design comparison with some of the competitors would be fascinating.

The world of patents is indeed a tricky one. A patent is only as good as your willingness to defend it. Roark Summerford didn't publish alot of his excellent hull design ideas/features. Darris Allison and Howard Pipkorn did more publishing of their new ideas.

In my new book, i have a secion dedicated to 'Mod VP boat' designs and development, including patents of some works, such as Allison and Pipkorn designs.

[David]

I ordered the book, and the book on propellers as well.