Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2008-04-15
2008-04-15
Williams, Hezron (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S599000, C073S159000, C073S628000
Reexamination Certificate
active
07357027
ABSTRACT:
A sensor system for determining the position of at least one edge of at least one web material traveling along a predetermined path. In one embodiment, the sensor system has at least one transmitter block having a plurality of transmitters capable of selectively transmitting ultrasonic signals and at least one receiver block having a plurality of receivers capable of generating receiver output signals in response to the receivers receiving at least a portion of the ultrasonic signals transmitted by the at least one transmitter block. The receiver block is spaced a distance from the transmitter block so as to define a sensor field of view therebetween whereby at least a portion of the at least one web material traveling along a predetermined travel path interferes with at least a portion of the ultrasonic signals transmitted by the at least one transmitter block. The receiver output signals generated by the at least one receiver block is indicative of the position of the web of material as the same is moved along the travel path between the transmitter block and the receiver block. In an alternative embodiment, the functions of the at least one transmitter block and the at least one receiver block are performed essentially equivalently by at least one transceiver block and at least one reflector.
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Haque Md M.
Hueppelsheuser Dale
Ploetz Wolfram
Winter Darcy J.
Yates Jim
Dunlap Codding & Rogers P.C.
Fayyaz Nashmiya
Fife Corporation
Williams Hezron
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