Tire and wheel assemblies
AssigneeDunlop Holdings Limited
InventorsTom French, Reginald Harold Edwards, Leslie Vernon Powell
Life of this patent
Estimating the term…
Abstract
A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.
Claims16
A pneumatic tire having a tread area and a pair of sidewalls defining an interior surface, each sidewall having an annular bead and having attached to but separate from its interior surface a closed enclosing means extending around the circumference of the tire in a position opposite said beads and containing a lubricant for the interior surfaces of the tire, means for releasing said lubricant from said enclosing means onto the interior surfaces of the tire which contact each other upon substantial under-inflation or deflation of the tire to facilitate relative movement between the contacting interior surfaces of the tire.
A pneumatic tire and wheel assembly capable of being run in a deflated condition comprising:
- a. a tire and a wheel upon which the tire is mounted to define therewith an inflation chamber, said wheel having a rim with a pair of opposed annular flanges and means for preventing the tire from becoming dislodged from the wheel when being run deflated and
- b. a closed enclosing means extending around the circumference of the inflation chamber in a position opposite said flanges and attached to but separate from the interior surface of the tire, containing lubricating material for the interior surfaces of the tire, which enclosing means releases the lubricating material onto the interior surfaces of the tire which contact each other when the assembly is used with the tire in a deflated condition to facilitate relative movement between the contacting interior surfaces of the tire.
A pneumatic tire and wheel assembly capable of being run in a deflated condition comprising:
- a. a tire and wheel upon which the tire is mounted to define therewith an inflation chamber, said wheel having a rim with a pair of opposed annular flanges and means for preventing the tire from becoming dislodged from the wheel when being run deflated,
- b. the entire interior surface of the tire and the inflation chamber being free of intermediate supporting structure so that when the assembly is run deflated, opposed internal surfaces of the tire come into contact, and
- c. a closed enclosing means extending around the circumference of the inflation chamber in a position opposite said flanges and attached to but separate from the interior surface of the tire, containing lubricating material for the interior surfaces of the tire, which enclosing means releases the lubricating material onto the contacting interior surfaces of the tire in response to impact or abrasion when the assembly is used with the tire in a deflated condition to facilitate relative movement between the contacting interior surfaces of the tire.
Dependencies are inferred from the claim text.