US PATENT SUBCLASS 156 / 83
.~.~ With swelling of material of lamina


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
83.~.~ With swelling of material of lamina


DEFINITION

Classification: 156/83

(under subclass 60) Processes including a step of treating a lamina to cause it to expand or increase in volume.

(1) Note. The swelling may be effected by, for example, absorption of a solvent by the material of the lamina thereby causing expansion thereof. Merely subjecting a lamina to an external force such as a compressive force in one direction to cause it to elongate in another direction is not subject matter for this subclass, nor is subjecting matter for this subclass, nor is subjecting the lamina to tension to cause it to elongate. Inflating a hollow article is also excluded in that the laminae material does not swell.

SEE OR SEARCH THIS CLASS, SUBCLASS:

147, for inflating a hollow core.

156, for fluid pressure used to prevent collapse of a hollow core.

229, for distorting a workpiece by stretching.

SEE OR SEARCH CLASS 8, Bleaching and Dyeing; Fluid Treatment and Chemical

Modification of Textiles and Fibers,

114, 130.1+ and 175 for processes of treating textiles with chemicals, e.g., swelling agents.

162, Paper Making and Fiber Liberation,

187, for processes of hydration or gelatinization combined with a paper making operation.