Oval seal cartridge with no dirty drip

Details Oval seal cartridge with no dirty drip Oval seal cartridge with no dirty drip

2011-06-07

2011-06-07

Cecil, Terry K (Department: 1772)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Discharge of treated material

C210S234000, C137S533110

Reexamination Certificate

active

07955500

ABSTRACT:
An assembly is disclosed that includes a centerpost assembly and a fluid filter cartridge. The centerpost assembly includes a main body having an inlet flow opening, an open interior, and a radial flange. An interior shelf is positioned proximate the inlet flow opening of the main body. The interior shelf includes an interior flow opening. A check valve ball is movably positioned on the interior shelf to move between the inlet flow opening and the interior flow opening. A spring-loaded end cap is movably connected to an upper end of the main body and is configured to move between a compressed state and an uncompressed state. A blocking pin extends from a lower surface of the end cap. When the end cap is in the compressed state, the blocking pin prevents the check valve ball from blocking a flow of fluid from flowing through the interior flow opening.

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