Patent ID: 8828126
Filing Date: 2014-09-09
Classification: G01N,Y10T

Abstract:
1. A system for changing a filter cartridge in an analyzer comprising: a fluid flow path including a manifold with input and output fluid fittings and at least one valve coupled to one of said input and output fittings; and a housing for a filter cartridge, said housing including housing fluid conduits which align with and couple to associated ones of said input and output fluid fittings of said manifold, wherein said manifold includes a sensor switch which is actuated when said housing is positioned on or removed from said manifold; and wherein said manifold further includes a three-way valve coupled to said input fitting and a three-way valve coupled to said output fitting and wherein said system includes a control circuit coupled to said sensor switch and to said three-way valves for actuating said three-way valves when said housing is positioned on or removed from said manifold, such that, when said housing is removed from said manifold for the replacement of a filter cartridge mounted to said housing, said three-way valves shut off the flow path to said input and output fittings.