Boots – shoes – and leggings
Patent
1980-09-24
1982-11-02
Wise, Edward J.
Boots, shoes, and leggings
364496, 73 61R, 196 145, G01N 1100
Patent
active
043576699
ABSTRACT:
The output oil from a solvent dewaxing unit is controlled so that it is provided as product oil when the wax content of the output oil is within a predetermined limit, or not provided as product oil when the wax content is not within the predetermined limit. The output oil from the dewaxing unit is sampled and solvent in the sample oil is removed. The solvent-free sample oil is chilled to a predetermined temperature. An analyzer receives the chilled sample oil and provides a signal corresponding to the wax content of the sample oil. A network coupled to the analyzer provides a control signal of one amplitude when the signal from the analyzer is within a predetermined limit and of another amplitude when the signal from the analyzer is not within the predetermined limit. A valve receiving the output oil from the dewaxing unit is responsive to the control signal to provide the output oil as product oil when the control signal is of the one amplitude and does not provide the output oil as product oil when the control signal is of the other amplitude.
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Alverson Frederick C.
MacMurtrie Edward D.
Odell Norman R.
Gillespie Ronald G.
Kulason Robert A.
Ries Carl G.
Texaco Inc.
Wise Edward J.
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