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US 2002/0000526 A1Published application
Yarn sensor
OwnerEdward J. Delawski, John C. Modlainventors
Life of this patent
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Abstract
A sensor for monitoring a yarn parameter, such as degree of interlace, operates by transmitting radiation from a transparent wear surface to a detector. The yarn contacts the wear surface as that the moving yarn continuously wipes the wear surface clean. A hinge assembly, including a pin, may be used with this sensor, where the pin swings toward the moving yarn to keep the yarn in contact with the wear surface.
Claims10
A process for monitoring a yarn parameter, comprising the steps of:
- (a) transmitting radiation from a source to a wear surface transparent to the radiation;
- (b) contacting the wear surface with a moving yarn to be monitored so that the yarn continuously wipes the wear surface;
- (c) reflecting the radiation from the yarn to a detector;
- and
- (d) processing the reflected radiation to monitor a desired yarn parameter.
2 more elements
A sensor for monitoring a yarn parameter, comprising:
- (a) a radiation source for transmitting radiation;
- (b) a radiation transparent wear surface for receiving a moving yarn at which radiation is directed from the radiation source and from which radiation is reflected;
- and
- (c) a detector for receiving the reflected radiation.
1 more element
Dependencies are inferred from the claim text.