US PATENT SUBCLASS 156 / 443
.~ With bending, folding, winding, or wrapping means

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}
443.~ With bending, folding, winding, or wrapping means {5}
444  DF  .~.~> Pneumatic blast to bend work
445  DF  .~.~> About preformed sphere
446  DF  .~.~> Rotating mandrel or article {4}
459  DF  .~.~> For an indefinite or running length flexible web {6}
475  DF  .~.~> To configuration of part to which secured {6}

DEFINITION

Classification: 156/443

(under subclass 349) Apparatus having means applying a distorting force to a workpiece to permanently deflect at least a portion of it out of its normal plane.

(1) Note. The temporary distortion of a workpiece due to handling is excluded from this subclass. Thus, winding or unwinding a web for temporary storage or feed to the device, bending a web around feed rollers on the way to or from the work station, festooning a web for storage are examples of work bending excluded from this subclass in that the distortion is temporary.

(2) Note. The devices of this and the indented subclass do not shape by plastically deforming the work such as by an embossing molding or casting operation. In the instant subclass the work does not change materially in section thickness during the working operation other than by doubling over, etc.. This latter feature is characteristic of a bending or folding operation as distinguished from a shaping operation involving plastic flow. For shaping operations involving plastic flow search must be made in appropriate subclasses below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

196+, for laminating processes involving a bending step.

346+, for plaster board making apparatus having folding means for a facing sheet.

392, for laminating devices of the pipe wrapping type. 393, for laminating devices having braiding or weaving means.

394.1+, and other appropriate subclasses for tire building devices which may include means to bend or wind a lamina.

422, for laminating devices of ring winding type.

425+, for laminating devices having spiral winding means for

the work.

433, for indefinite or running length strand or filament uniting devices which may have filament bending means.

442.1, for a patent to envelope sealing means combined with means to fold the envelope flap.

500, and see (2) Note above.

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

585+, for sheet or web deforming or reshaping means, per se.