US Patent 7393390 Hollow fiber membrane air drier

Patent 7393390 was granted and assigned to Anest Iwata on July, 2008 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Anest Iwata

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7393390

Date of Patent

July 1, 2008

Patent Application Number

11160215

Date Filed

June 14, 2005

Patent Citations Received

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US Patent 11971396 Programmable logic controller-based system and user interface for air sampling controlled environments

Patent Primary Examiner

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Jason M. Greene

Patent abstract

Air is introduced from an intake chamber into a plurality of hollow fiber membranes in a casing. The casing is connected to a vacuum pump via a three-way valve and water vapor in air is evacuated through the membranes. Dehumidified or dried air is discharged from a discharge chamber at the ends of the membranes. The vacuum pump is connected to a detector/selector. If the vacuum pump is out of order, it is detected by the detector/selector and another dehumidifier including a depressurizing device is actuated.