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Patent
Title
Verfahren zur Filtration eines verkeimten oder mit Pyrogenen verunreinigten Abgas-, Wasser- oder Luftstroms sowie dessen Verwendung
Other Title
Maintaining filter sterility by heat from conductive section - incorporated in filter and directly or inductively heated
Abstract
Beschrieben wird ein sterilisierbarer Filter mit wenigstens einem Filterelement. Die Erfindung zeichnet sich dadurch aus, dass das Filterelement einen elektrisch leitenden Bestandteil aufweist, und dass das Filterelement zur Sterilisation mittels Stromdurchgang aufheizbar ist.
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DE 3930023 A UPAB: 19930928 Filters for air entering premises where high levels of purity are reqd., esp. operating theatres or biotechnological prodn. plant where bacteria could cause damage, or electronic-element prodn. plant, have an electrically conductive section by which the filter can be brought to sterilisation temp.. The method is also applicable to water filters. The conductive section may be of carbon, metal or a material coated with either of these materials, and heating may come from directly or inductively applied electrical power. During temporary shut-down for thermal sterilisation, flow of air or liq. is maintained through an identical back-up filter. ADVANTAGE - Filter maintaining pure air supply for long periods can be sterilised without preliminary disassembly.
Inventor(s)
Patent Number
1989-3930023
Publication Date
1991
Language
German