US PATENT SUBCLASS 156 / 581
.~.~ Relieved or configured pressing face

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

349  DF  SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34}
580  DF  .~ Presses or press platen structures, per se {3}
581.~.~ Relieved or configured pressing face {1}
582  DF  .~.~.~> Rotary

DEFINITION

Classification: 156/581

(under subclass 580) Apparatus in which the working surface of the element which applies the pressure has either projections or portions thereof recessed, whereby limited portions only thereof apply pressure to the work.

(1) Note. The purpose of these devices is to confine the bonding action to defined areas of chosen configuration by causing pressure to be applied at selected areas only.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

553, for work feeding or assembling devices having a discontinuous or patterned press surface.

SEE OR SEARCH CLASS

144, Woodworking, 256.3+, for a woodbending press having opposed contoured rigid platens.