US PATENT SUBCLASS 156 / 189
.~.~.~ About irregular or configured mandrel surface

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}
184  DF  .~.~ With winding of web or sheet {7}
189.~.~.~ About irregular or configured mandrel surface

DEFINITION

Classification: 156/189

(under subclass 184) Processes in which the winding of the web or sheet is about a core to support the web or sheet during the winding operation without bonding the web or sheet to the core and a transverse cross-section of the core at any section along the length thereof is either (a) noncircular in cross-section or (b) circular in cross-section and at least two circular sections thereof are of different diameter.

(1) Note. Cores which are circular in cross-section and of the same diameter throughout are excluded from this subclass.