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US 7,186,290 B2Granted
Filter system with automatic media refresh
AssigneeCarrier Corporation
InventorsDarren S. Sheehan, Susan D. Brandes, Robert Chiang, Brad Reisfeld
Life of this patent
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Abstract
A filter system includes a source of clean filter media adjacent a channel through which fluid passes. The filter media is automatically advanced from the source to the channel and eventually to a sealed container adjacent the channel. The filter media is automatically advanced through the channel, where it is replaced with clean filter media in the channel. A controller controls the advancement of the filter media based upon time or based upon a current condition of the filter media.
Claims20
A filter system comprising:
- a channel through which fluid passes;
- a source containing a plurality of clean filter media cartridges adjacent the channel;
- and
- a repository for used filter media cartridges adjacent the channel, wherein clean filter media cartridges travel from the source through the channel to collect a contaminant, and wherein the filter media cartridges travel from the channel to the repository.
1 more element
A method for operating a filter system including the steps of:
- a) advancing a clean filter media cartridge from a source container storing a plurality of clean filter media cartridges into a channel through which a fluid passes;
- b) collecting contaminants from the fluid in the filter media cartridge in the channel;
- and
- c) advancing the filter media cartridge with the contaminants from the channel to a repository container adjacent the channel.
1 more element
Dependencies are inferred from the claim text.