F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
62/68
F25B 45/00 (2006.01) B01D 17/02 (2006.01) B01D 29/00 (2006.01) F25B 43/00 (2006.01)
Patent
CA 1241208
ABSTRACT A refillable filter-drier assembly for use in a refrigerant line. the assembly includes a shell or casing which houses a replaceable core having a central bore and which may be a filter, drier or strainer element or any combination thereof. Refrigerant enters the shell adjacent one end and occupies the space surrounding the core. The liquid passes inwardly through the core into the central bore and exits the casing from the end opposite from which it enters. The core is supported in spaced relationship with respect to the casing interior by an annular cage on the outlet end of the core and by an end closure cage on its opposite end. Both the annular cage and the end closure cage have resilient zingers which grip the core adjacent its opposite ends. Both the annular cage and the end closure cage also have pluralities of laterally extending lugs which support the core in its spaced relationship within the casing. The annular cage on the core outlet end also carries a loose-fitting plug-like screen which projects into the central bore of the core. The core may be unitary or comprised of two or more co-axial, end-to-end sections with an annular intermediate cage between juxtaposed sections. The intermediate cage will have resilient gripping fingers that grip one of the juxtaposed sections and will also have a plurality of laterally extending lugs which assist in supporting the core in its spaced relationship within the casing. when a core is spent or otherwise needs replacing, it is removed and the casing is refilled with another core.
500429
Gugala Zbigniew H.
Krause Richard J.
Shah Madhukant A.
Henry Valve Company
Osler Hoskin & Harcourt Llp
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