Optics: measuring and testing – By configuration comparison – With photosensitive film or plate
Patent
1994-03-10
1996-07-30
Evans, F. L.
Optics: measuring and testing
By configuration comparison
With photosensitive film or plate
25055924, 356429, G01B 1110
Patent
active
055417345
ABSTRACT:
A system for electronically comparing yarn lengths to assist in grading yarn appearance quality in which the yarn diameter at a number of locations along the total length of the yarn is determined, and representations of the diameters of the yarn are displayed to allow comparison of portions of the yarn.
REFERENCES:
patent: 4887155 (1989-12-01), Massen
patent: 4963757 (1990-10-01), Liefde et al.
patent: 5319578 (1994-06-01), Lawson et al.
Bonneau David
Gordon, Jr. Kendall W.
Lawson John B.
Nevel Avishai
Dingman Brian M.
Evans F. L.
Lawson-Hemphill Inc.
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