B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 27/08 (2006.01) B01D 35/30 (2006.01) B01D 46/42 (2006.01)
Patent
CA 2681655
Embodiments of a key system for filters and their connecting heads/holders are shown. The filter cartridge and its holder each have a keyed surface, one being a protruding "key" and one being a recessed "lock". Cooperation of these keyed surfaces is required in order for the filter cartridge to be installed in the holder, so that mis-matched cartridges cannot be installed into the holder, for example, to prevent a particular type of cartridge from being placed in a filtration or other process where it would be inappropriate, or undesired. The keyed surfaces are selectively locate-able preferably at different circumferential locations on a perimeter of the filter and a corresponding location on a perimeter of the head/holder. The perimeter may be, for example, on an outer shoulder surface of a filter and an inner surface of a valve head, or on outer and inner surfaces of connectors that provide a liquid seal between the filter and the head/holder.
Borden Ladner Gervais Llp
Omnipure Filter Company Inc.
LandOfFree
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