US PATENT SUBCLASS 112 / 448
.~.~.~.~ Having cam actuation of needle or material feed

Current as of: June, 1999
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112 /   HD   SEWING

154  DF  STITCH FORMING {17}
157  DF  .~ Zigzag {3}
443  DF  .~.~ Vibrating needle {9}
446  DF  .~.~.~ Closed pattern sewing (e.g., buttonhole) {2}
448.~.~.~.~ Having cam actuation of needle or material feed {1}
449  DF  .~.~.~.~.~> And means to change, without operator intervention, stitch width, or material feed

DEFINITION

Classification: 112/448

Having cam actuation of needle or material feed:

(under subclass 446) Device including a first element and a slave element which move relative to one another, wherein the first element has an irregular or eccentric surface over which a portion of the slave element is caused to slide, and wherein needle or material movement is controlled by the resultant movement of the slave element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

459+, for zigzag stitch forming mechanisms having cam actuation of either needle or material feed which are not restricted to closed pattern sewing.