US PATENT SUBCLASS 152 / 502
.~.~ Automatic sealing of punctures (e.g., self-healing)

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
450  DF  .~ Pneumatic tire or inner tube {23}
502.~.~ Automatic sealing of punctures (e.g., self-healing) {3}
503  DF  .~.~.~> Using flowable coating or composition {2}
508  DF  .~.~.~> By compression
509  DF  .~.~.~> With reinflating means

DEFINITION

Classification: 152/502

Automatic sealing of punctures (e.g., self-healing):

(under subclass 450) Subject matter wherein the pneumatic tire or inner tube is provided with a self-healing feature comprising material provided in the pneumatic tire or inner tube or within cavities or chambers defined by said pneumatic tire or inner tube, which material is of such a nature as to tend to seal breaks made in the pneumatic tire or inner tube surface.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles, cross-references art collection 912 for puncture healing layers generally.

523, Synthetic Resin or Natural Rubber,

166, for the puncture sealants.