Filter apparatus

Details Filter apparatus Filter apparatus

B - Operations, Transporting

01

D

182/19, 182/9

B01D 27/02 (2006.01) B01D 27/08 (2006.01) B01D 35/157 (2006.01) C02F 1/00 (2006.01)

Patent

CA 1323310

Filter Apparatus Abstract of the Disclosure A filtering apparatus including a fluid monitoring head and a replaceable filter cartridge removably fas- tened to said head. The cartridge includes a shut off mechanism for interrupting fluid flow through the car- tridge when a predetermined quantity of fluid has been treated by the filter. The fluid monitoring head is releasably coupled to the shutoff mechanism when the filter is installed. The shutoff mechanism includes a valve element threadedly carried by a shaft that forms part of a driven member, operatively connected to a drive member forming part of the monitoring head. As the driven member rotates, the valve element is gradually unthreaded until it separates and is driven to a flow interrupting position by a biasing spring. The coupling between the drive and driven members includes apertures on one of the members which are engaged by resilient tongues formed on the other member.

547367

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