Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1980-07-22
1984-05-15
Scherbel, David A.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209579, 209587, 250223R, 358106, 356 72, 356237, 356385, 356426, 364507, B07C 110, B07C 516, B07C 5344
Patent
active
044486804
ABSTRACT:
Control for the operation of a mechanical handling and gauging system for nuclear fuel pellets. The pellets are inspected for diameters, lengths, surface flaws and weights in successive stations. The control includes, a computer for commanding the operation of the system and its electronics and for storing and processing the complex data derived at the required high rate. In measuring the diameter, the computer enables the measurement of a calibration pellet, stores that calibration data and computes and stores diameter-correction factors and their addresses along a pellet. To each diameter measurement a correction factor is applied at the appropriate address.
The computer commands verification that all critical parts of the system and control are set for inspection and that each pellet is positioned for inspection. During each cycle of inspection, the measurement operation proceeds normally irrespective of whether or not a pellet is present in each station. If a pellet is not positioned in a station, a measurement is recorded, but the recorded measurement indicates maloperation.
In measuring diameter and length a light pattern including successive shadows of slices transverse for diameter or longitudinal for length are projected on a photodiode array. The light pattern is scanned electronically by a train of pulses. The pulses are counted during the scan of the lighted diodes. For evaluation of diameter the maximum diameter count and the number of slices for which the diameter exceeds a predetermined minimum is determined. For acceptance, the maximum must be less than a maximum level and the minimum must exceed a set number. For evaluation of length, the maximum length is determined. For acceptance, the length must be within maximum and minimum limits.
REFERENCES:
patent: 3221152 (1965-11-01), Jones
patent: 3513321 (1970-05-01), Sherman
patent: 3806253 (1974-04-01), Denton
patent: 3880750 (1975-04-01), Butler et al.
patent: 3967114 (1976-06-01), Cornillault
patent: 4117935 (1978-10-01), Richardson et al.
patent: 4120403 (1978-10-01), Stephanos
patent: 4143770 (1979-03-01), Grimmell et al.
patent: 4162126 (1979-07-01), Nakagawa et al.
patent: 4166029 (1979-08-01), Rhotert
patent: 4166541 (1979-09-01), Smith
patent: 4219277 (1980-08-01), Yaroshuk et al.
Breakey Gerald A.
Castner Raymond P.
Sternheim Eliezer
Sturges, Jr. Robert H.
Taleff Alexander
Abeles Daniel C.
Scherbel David A.
The United States of America as represented by the United States
LandOfFree
Apparatus and method for classifying fuel pellets for nuclear re does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for classifying fuel pellets for nuclear re, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for classifying fuel pellets for nuclear re will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-843880