Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Malcolm Robert Snowball0
Date of Patent
February 6, 2007
Patent Application Number
11126416
Date Filed
May 11, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
An irradiation device, for example a UV irradiation device for disinfecting waste water, is arranged to emit radiation from a source and through an outer wall which is permeable to fluid. Means are provided for varying the fluid pressure behind the inner surface of the outer wall, to cause fluid to permeate through it, either inwardly or outwardly. The arrangement serves to maintain the outer surface of the permeable wall clear of contaminants.
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