Originally Posted by
repechage
Actually that is an old concept. Trying to recall the brand or brands at the moment. From the 70's.
I recall Tufo also does this. I have not used them, the color of the sidewalls - kind of a red brick color just did not agree with my visual target.
I used Wolber Liberty tires for a while. They had the tube permanently sealed inside the casing. I think it was all vulcanized together. They supplied this injector thing which was a tube of goop with a hollow needle cap type thing. You were supposed to inject a blob of the glue into the puncture in the tire, and leave a plug inside. This would allegedly patch the tire. It didn't work very well. Never had one of those 'patches' last more than a ride or two, if that. I guess it was enough to get you home at least. I suspect the modern concept is much improved now that there are effective sealants.
I think @
T-Mar mentioned a while ago that this type of tire goes way way back, like to the turn of the century or something, IIRC.