He's going to have trouble getting a patent, now that he's published it's
design to the world. Now it's considered "public domain". He should have
filed for a patent and then waited for the filing to be accepted before
showing his design to anyone. Then it would be listed as "patent applied
for" and he would have protection.
Charley
"Joe" <[email protected]> wrote in message
news:[email protected]...
> Well done, now go get a patent on it!
>
> jc
>
> "chips-'n-swarf" <[email protected]> wrote in message
> news:[email protected]...
> > Some weeks ago, I asked about a hand cart
> > that could move both forward and sideways.
> > After googling and asking all over for such a
> > and getting no joy, this is my solution.
> >
> > http://www.granthams.com/cart/
> >
> >
> >
>
>
On Fri, 3 Aug 2007 15:18:58 -0500, "chips-'n-swarf" <[email protected]>
wrote:
>Some weeks ago, I asked about a hand cart
>that could move both forward and sideways.
>After googling and asking all over for such a
>and getting no joy, this is my solution.
>
>http://www.granthams.com/cart/
>
>
That's really cool. Are you planning on producing it?
---------------------------------------------
** http://www.bburke.com/woodworking.html **
---------------------------------------------
"dpb" <[email protected]> wrote in message news:[email protected]...
> chips-'n-swarf wrote:
>> Thank you for all the kind words. The hand truck was made
>> for my own use. If it give you folks any inspiration, please
>> post your ideas.
>
> As the other said, "nice idea, well executed"...
>
> A question/comment...
> How heavy is the rod? Looks like the potential "weak link" under a heavy
> load, maybe. But, a lower additional support or just beefing it up would
> take quite a bit to cause a problem, I'm sure...
>
The rods are 1/2" stressproof. And, you're right there may be a problem
with heavy loads, however the wheels have a load rating of 175 pounds,
so that limits the cart to under 400 pounds.
I have been unable to find 6" pneumatic tires, so that seems to be the
limiting factor. It would be very easy to use a 3/4" or 1" shafting to
beef up the weight limits perhaps by using 10" pneumatic tires with
6" steel caster wheels.
Thanks for the comments
Rod
very nice idea, using the two different diameter wheels so when they are
turned for sideways travel they provide a nice convenient tilt.
"chips-'n-swarf" <[email protected]> wrote in message
news:[email protected]...
> Some weeks ago, I asked about a hand cart
> that could move both forward and sideways.
> After googling and asking all over for such a
> and getting no joy, this is my solution.
>
> http://www.granthams.com/cart/
>
>
>
chips-'n-swarf wrote:
> Some weeks ago, I asked about a hand cart
> that could move both forward and sideways.
> After googling and asking all over for such a
> and getting no joy, this is my solution.
>
> http://www.granthams.com/cart/
>
>
>
A great idea with some serious engineering, I think that thing will last
forever.
A thousand uses, well done.
regards
John
chips-'n-swarf wrote:
> Thank you for all the kind words. The hand truck was made
> for my own use. If it give you folks any inspiration, please
> post your ideas.
As the other said, "nice idea, well executed"...
A question/comment...
How heavy is the rod? Looks like the potential "weak link" under a
heavy load, maybe. But, a lower additional support or just beefing it
up would take quite a bit to cause a problem, I'm sure...
--
chips-'n-swarf wrote:
> "dpb" <[email protected]> wrote in message news:[email protected]...
>> chips-'n-swarf wrote:
>>> Thank you for all the kind words. The hand truck was made
>>> for my own use. If it give you folks any inspiration, please
>>> post your ideas.
>> As the other said, "nice idea, well executed"...
>>
>> A question/comment...
>> How heavy is the rod? Looks like the potential "weak link" under a heavy
>> load, maybe. But, a lower additional support or just beefing it up would
>> take quite a bit to cause a problem, I'm sure...
>>
>
> The rods are 1/2" stressproof. And, you're right there may be a problem
> with heavy loads, however the wheels have a load rating of 175 pounds,
> so that limits the cart to under 400 pounds.
>
> I have been unable to find 6" pneumatic tires, so that seems to be the
> limiting factor. It would be very easy to use a 3/4" or 1" shafting to
> beef up the weight limits perhaps by using 10" pneumatic tires with
> 6" steel caster wheels.
...
Actually, if you were really intent on making/needing a heavyweight job,
strikes me you could add a tension rod onto the outside diameter of the
shaft when rotated that could clear the supports. Lightweight but very
strong in tension. Same idea as used on pole booms, for example.
--
Well done, now go get a patent on it!
jc
"chips-'n-swarf" <[email protected]> wrote in message
news:[email protected]...
> Some weeks ago, I asked about a hand cart
> that could move both forward and sideways.
> After googling and asking all over for such a
> and getting no joy, this is my solution.
>
> http://www.granthams.com/cart/
>
>
>