Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1977-05-06
1978-08-15
Queisser, Richard C.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
73 15R, 73 613, G01N 2500, G01N 3328
Patent
active
041063317
ABSTRACT:
A method for detecting contamination of a liquid, particularly a Quench Oil, comprises introducing a sensing element at a high temperature into a liquid, allowing the sensing element to commence cooling, and thereafter timing the cooling of the sensing element between two selected temperatures. The time thus measured is compared with a pre-set time, to provide an indication of contamination of the liquid. In apparatus for carrying out the method, a slug of stainless steel in which is embedded a thermo couple is heated in a furnace and then lowered into a receptacle containing the liquid under test. These operations, and the timing and comparison, are effected in a pre-determined automatic cycle.
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patent: 3013427 (1961-12-01), Bender
patent: 3054048 (1962-09-01), Bolston et al.
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Bunton John Darrah
Marsh David John
G.K.N. Group Services Limited
Queisser Richard C.
Roskos Joseph W.
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