US PATENT SUBCLASS 156 / 580
.~ Presses or press platen structures, per se

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}
580.~ Presses or press platen structures, per se {3}
580.1  DF  .~.~> With sonic or ultrasonic means {1}
581  DF  .~.~> Relieved or configured pressing face {1}
583.1  DF  .~.~> Heated {7}

DEFINITION

Classification: 156/580

(under subclass 349) Apparatus having means including a solid surface biased against the work to urge the laminae into intimate association with each other.

(1) Note. In this and the indented subclasses may be found inventions relating to the means clamping the work during the setting of the adhesive. Also included are patents in which the solid member wipes along the surface of a lamina to press it into intimate engagement with the base to which it is to be secured.

(2) Note. Laminating presses, per se, of general utility are provided for in Class 100, Presses, appropriate subclasses. That class also provides for presses that are modified by including heating means, cutting means and various other combined treatments provided for in that class. The instant group of subclasses (580+) distinguish from Class 100, Presses, in that the presses or platen surfaces are not of general utility. Thus, included in Class 156 are; (a) relieved or discontinuous surfaces for the purpose of joining laminae in a configured pattern or in a hit-miss manner; (b) platens wherein a limited portion only of the press surface area is heated so that a restricted portion only of the pressed area is joined; (c) wiping devices for smoothing previously associated laminae.

(3) Note. The energy may be applied to the work by way of example, in the form of infrared, X-rays, electrostatic energy or a magnetic field.

(4) Note. Presses or devices for maintaining parts in assembled relationship during bonding when combined with assembling, work handling or treating means for the parts are classified in subclasses above which provide for the various combinations.

(5) Note. Class 100, Presses, provides for laminating presses including working handling means moving a previously assembled sandwich into or out of the press. Thus with respect to Class 100, this class (156) provides for (a) laminating presses combined with means to assemble or bring workpieces into association one with the other (subclasses 538+) or (b) laminating presses in which the press has some characteristic limiting it to a laminating device in accordance with (2) Note above. SEE OR SEARCH THIS CLASS, SUBCLASS:

358, for laminating devices having means automatically controlling the application of laminating pressure.

475+, for presses in which a part is bent to the configuration of the base to which it is secured.

580.1+, for apparatus having means to treat the work with sonic or ultrasonic waves or vibrations.

SEE OR SEARCH CLASS

100, Presses, appropriate subclasses, for presses, per se, of general utility, especially

300+, for a press for attaching a brake pad to a rotor or cylinder of a brake assembly and see (2) Note above.

144, Woodworking,

256.1+, for press for bending wooden members as they are pressed but having no claimed means which adapts the press to use in adhesively securing to each other a plurality of self-sustaining articles or webs.

269, Work Holders, appropriate subclass as the residual class for work holders or clamps, per se.