US PATENT SUBCLASS 156 / 119
.~.~.~.~ Multichamber safety tube

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
110.1  DF  .~.~ Making flexible or resilient toroidal shape; e.g., tire, inner tube, etc. {9}
118  DF  .~.~.~ Tubular (airtight) torus (e.g., auto tube-making) {4}
119.~.~.~.~ Multichamber safety tube

DEFINITION

Classification: 156/119

(under subclass 118) Processes in which the airtight tube has more than one airtight compartment whereby loss of pressure in a single compartment would not affect pressure in the other compartments.

SEE OR SEARCH CLASS

152, Resilient Tires and Wheels,

331.1+, for multiple chamber tube constructions.