Re: New ideas for cycling products

On May 5, 5:58 pm, carlfo...@[EMAIL PROTECTED]
 wrote:
> On Mon, 05 May 2008 16:03:48 -0500, Ben C <spams...@[EMAIL PROTECTED]
> wrote:
> >On 2008-05-05, bicycle_disciple <1.crazyboy.o...@[EMAIL PROTECTED]
> wrote:
> >> Part 1
:http://cozybeehive.blogspot.com/2008/05/ideas-for-new-cycling-product...
> >> Part 2
:http://cozybeehive.blogspot.com/2008/05/ideas-for-new-cycling-product...
>
> >> Comments welcome.
>
> >I'm fairly sure from reading Fogel's posts that most of these ideas
will
> >have already been patented before 1890 :)
>
> Dear Ben,
>
> Inventors were pu****ng automatic bicycle pumps furiously before 1900,
> but the idea never caught fire, if you'll pardon a mixed metaphor.
>
> Automatic pumps can be divided into hub and rim driven designs.
>
> Hub-drive pumps were heavier and smoother and didn't interfere with
> patching flats, while rim-drive pumps were simpler, ridiculously
> inconvenient whenever a tube had to be fixed, and just as unsuccessful
> as hub-drive pumps.
>
> The natural latex tubes of that era leaked much faster than modern
> butyl tubes because N2 goes through natural rubber much faster than it
> p***** through synthetic rubber.
>
> But practically everyone just stopped and pumped the leaky tires up
> every few days in the 1890s. The tires were huge, low-pressure balloon
> models, which were easier to pump up by hand than by installing and
> elaborate auto-pumping machinery, fore and aft, which naturally
> produced enormous rolling resistance.
>
> This search will let you browse a few dozen examples:
>
> http://www.google.com/patents?q=bicycle+pump+automatic&as_drrb_is=b&a...
>
> A trio of hub-driven automatic bicycle tire pumps:
>
> http://www.google.com/patents?id=kDJCAAAAEBAJ&pg=PP1&source=gbs_selec...
>
> http://www.google.com/patents?id=DJhJAAAAEBAJ&pg=PP1&source=gbs_selec...
>  http://www.google.com/patents?id=hNIsAAAAEBAJ&jtp=1
>
> A trio of rim-driven automatic bicycle tire pumps:
>
> http://www.google.com/patents?id=snJgAAAAEBAJ&pg=PP1&source=gbs_selec...
>
> http://www.google.com/patents?id=DJhJAAAAEBAJ&pg=PP1&source=gbs_selec...
>
> http://www.google.com/patents?id=4qJRAAAAEBAJ&pg=PP1&source=gbs_selec...
>
> Cheers,
>
> Carl Fogel

Thats a wealth of info. Thanks Carl.