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Thread breakage detection systems and methods

  • US 7,204,137 B1
  • Filed: 08/20/2003
  • Issued: 04/17/2007
  • Est. Priority Date: 08/20/2003
  • Status: Expired due to Fees
First Claim
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1. A system comprising:

  • a textile sewing apparatus having at least one yarn guide plate defining a plurality of holes through which thread may pass; and

    a thread breakage detection apparatus coupled to the textile sewing apparatus, the thread breakage detection apparatus comprising;

    a light source operable to generate a light beam;

    an emitter in communication with the light source, the emitter operable to emit the light beam, the emitter comprising an emitter lens; and

    a receiver in communication with the emitter, the receiver operable to receive the light beam emitted from the emitter and to communicate the light beam to a sensor, the receiver comprising a receiving lens, wherein in order to minimize false positives;

    the light beam is proximate to the yarn guide plate, anda distance between the light beam and a thread disposed in one of the plurality of holes defined by the yarn guide plate comprises approximately 10 millimeters.

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