Liquid purification or separation – Filter – Within flow line or flow line connected close casing
Reexamination Certificate
2008-11-25
2011-12-27
Upton, Christopher (Department: 1778)
Liquid purification or separation
Filter
Within flow line or flow line connected close casing
C210S444000, C210S450000, C210S454000, C210S455000
Reexamination Certificate
active
08083074
ABSTRACT:
A filter assembly where the filter cartridge is secured to the nutplate and a seal is provided between the filter cartridge and the nutplate. The sealing relationship between the filter cartridge and the nutplate is maintained during use of the filter assembly without using a spring engaged with the filter cartridge that biases the filter cartridge into engagement with the nutplate.
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Bagci Ismail C.
Eickhoff James L.
South Kevin C.
Cummins Filtration IP Inc.
Hamre Schumann Mueller & Larson P.C.
Upton Christopher
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