Point-of-use water treatment system

• Main Authors: KUENNEN ROY W, BARTKUS ERIC K, CONRAD KENNETH E, LAUTZENHEISER TERRY L, BAARMAN DAVID W, MOLLEMA SCOTT A, SYNDER GREG
• Format: Patent
• Language: English
• Published: 17.09.2002
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COLORIMETRY; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; RADIATION PYROMETRY; SEPARATION; TESTING; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A water treatment system 20 for filtering and treating contaminants in water includes a UV lamp assembly 24 coaxially received within a filter assembly 26. A valve system prevents water from being spilled from the filter assembly when the filter assembly is removed from the base unit 22 and the lamp assembly so that the lamp and filter assemblies are independently replaceable. The valve system includes a check valve 102 controlling flow between the lamp and filter assemblies.