US PATENT SUBCLASS 156 / 553
.~.~.~.~ Discontinuous, spaced area, and/or patterned pressing

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

349  DF  SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34}
538  DF  .~ With work feeding or handling means {4}
539  DF  .~.~ For plural parts or plural areas of single part {3}
543  DF  .~.~.~ Indefinite or running length work {6}
553.~.~.~.~ Discontinuous, spaced area, and/or patterned pressing

DEFINITION

Classification: 156/553

(under subclass 543) Apparatus in which the laminae are caused to adhere by being subjected to approaching pressure surfaces and in which the pressure surfaces are relieved, configured in outline, or intermittently contact the same workpiece whereby the workpieces are joined at spaced points or in an irregular manner.

(1) Note. In this subclass may be found, for example, devices that transversely seam traveling webs at spaced intervals. A longitudinal seam, even though narrower than the joined webs, is not provided for here where a continuous, even width seam is formed. Such subject matter is classified on other bases such as, for example, web width (subclass 554) or continuous press (555).

SEE OR SEARCH THIS CLASS, SUBCLASS:

290, for methods of bonding continuously contacting laminae at spaced points.

554, and 555, and see (1) Note above.

581+, for laminating presses, per se, having a relieved or configured pressing face.