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Method of and apparatus for introducing polverulent material into a tire

  • US 5,472,023 A
  • Filed: 04/19/1994
  • Issued: 12/05/1995
  • Est. Priority Date: 03/30/1993
  • Status: Expired due to Term
First Claim
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1. A method of introducing a pulverulent solid material into a tire through a tire valve stem comprising the steps of:

  • (a) confining a predetermined amount of pulverulent polymer is solid material in an upright chamber having opposite first and second ends and having an air inlet at said first end and an air outlet at said second end, said air outlet being higher than said air inlet, said air inlet and said air outlet having non-aligned axes whereby cyclonic air currents are created;

    (b) passing a pressurized air stream successively through said air inlet, said chamber and said air outlet, said pressurized air stream flowing upwardly through said chamber and said air outlet, the pressurized air creating cyclonic air currents within the chamber and thereby creating an essentially uniform admixture of said pulverulent material and air; and

    (c) introducing the resulting admixture of said pulverulent material and air into a tire through an associated tire valve stem under the influence of the pressurized cyclonic air currents, the amount of pulverulent material so introduced into the tire being sufficient to effect dynamic balancing of said tire and a wheel assembly associated therewith but insufficient to substantially fill said tire.

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