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专利名称：Method and apparatus for detecting
contamination of liquids
发明人：John Darrah Bunton,David John Marsh申请号：US05/794658申请日：19770506公开号：US04106331A公开日：19780815
摘要：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 thesensing element to commence cooling, and thereafter timing the cooling of the sensingelement between two selected temperatures. The time thus measured is compared witha pre- set time, to provide an indication of contamination of the liquid. In apparatus forcarrying out the method, a slug of stainless steel in which is embedded a thermo coupleis 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-determinedautomatic cycle.
申请人：G.K.N. GROUP SERVICES LIMITED
代理机构：Spencer & Kaye
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