Boots – shoes – and leggings
Patent
1985-11-01
1988-01-12
Krass, Errol A.
Boots, shoes, and leggings
364468, 364183, 364571, 364900, G06F 1520, G06G 748
Patent
active
047195860
ABSTRACT:
A process control is provided for continuously monitoring and adjusting an apparatus for manufacturing discrete workpieces. The system measures a current workpiece by taking fifteen readings and deleting the highest five and lowest five readings and averaging the center five readings. This value is then used for sorting the workpiece in accordance with preset tolerance limits. The measured average value is also compared with an expected value which the system has computed and stored. An adjustment value is then calculated based on a comparison of the measured dimension of the current workpiece and a measured dimension of the last-produced workpiece and the expected value for the current workpiece. The apparatus is then adjusted in accordance with the computed adjustment value. The system also has the ability to calculate the statistical distribution of a plurality of previously produced workpieces and to adjust the apparatus in accordance with a comparison of the dimension of the current workpiece with the three sigma limits of the distribution. Furthermore, the system has the capability of calculating a statistical distribution and printing out this data as well as performing a capability study.
REFERENCES:
patent: 2767914 (1956-10-01), Merrill et al.
patent: 2897638 (1959-08-01), Maker
patent: 3147370 (1964-09-01), Lowman
patent: 3151237 (1964-09-01), Hrabak
patent: 3515860 (1970-06-01), Fitzgerald, Jr.
patent: 3622448 (1971-11-01), Adams et al.
patent: 3648035 (1972-03-01), Hart et al.
patent: 3666621 (1972-05-01), Adams
patent: 3816721 (1974-06-01), Turner
patent: 3875383 (1975-04-01), Somerville et al.
patent: 3876872 (1975-04-01), Spitz
patent: 3878982 (1975-04-01), Hoffman
patent: 3881651 (1975-05-01), Wilhelm, Jr.
patent: 3946212 (1976-03-01), Nakao et al.
patent: 4109511 (1978-08-01), Powers, Jr. et al.
patent: 4136396 (1979-01-01), Hansford
patent: 4144578 (1979-03-01), Mueller et al.
patent: 4320463 (1982-03-01), Himmelstein
patent: 4433385 (1984-02-01), De Gasperi et al.
patent: 4458323 (1984-07-01), Willis et al.
patent: 4472770 (1984-09-01), Li
Instruction Manual for Metri-Gap 300-9 High Speed Spring Gage by: Lion Precision Corp. (1976).
Duguid Jeffery W.
Moyer John A.
Dixon Joseph L.
Krass Errol A.
Moyer Process and Control Company, Inc.
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