US PATENT SUBCLASS 112 / 443
.~.~ Vibrating needle

Current as of: June, 1999
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112 /   HD   SEWING

154  DF  STITCH FORMING {17}
157  DF  .~ Zigzag {3}
443.~.~ Vibrating needle {9}
159  DF  .~.~.~> Shifting looper
444  DF  .~.~.~> Having indicator {1}
446  DF  .~.~.~> Closed pattern sewing (e.g., buttonhole) {2}
450  DF  .~.~.~> Basting stitch or skipping stitch
451  DF  .~.~.~> Backstitch
452  DF  .~.~.~> Having multiple needles
453  DF  .~.~.~> Having electronic memory {5}
459  DF  .~.~.~> Having cam actuation of needle or material feed {4}
467  DF  .~.~.~> Having specified looptaker structure

DEFINITION

Classification: 112/443

Vibrating needle:

(under subclass 157) Device wherein the needle is shifted back and forth laterally across a line of material feed in forming stitches in one or more layers of material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81+, for machines adapted for ornamentation by hemstitching.

98+, for machines adapted for ornamentation by stitching operations and in which the needle operates in a vertical plane.

111, for machines adapted to sew on flat buttons and in which the needle is shifted laterally.

321, for stitch forming mechanisms engaging the upper side of the work material and in which the needle acts as a feed means.