Patent ID: 8449765
Filing Date: 2013-05-28
Classification: B01D

Abstract:
1. A filter device for filtering fluid, comprising: a filter housing having an internal cavity, an inlet for fluid to be filtered, an outlet for filtered fluid and bearing element in said filter housing adjacent said outlet; a filter element received in said internal cavity of said filter housing, contacting said bearing element and having a data memory unit, said memory unit having data stored therein readable electronically by a read/write device, said filter element having a longitudinal axis; a passage extending through a wall of said filter housing and into said internal cavity adjacent said outlet and receiving an electrical connection; and an antenna extending outside of said data memory unit and extending at least in sections about said longitudinal axis to guarantee a signal coupling between said data memory unit and the read/write device independently of an angular position of said filter element and said data memory unit connected to said filter element in said filter housing, said antenna being one of in and on said bearing element, said electrical connection extending to the read/write device and extending radially to at least one of said longitudinal axis and said antenna, said passage extending radially relative to said longitudinal axis and located axially adjacent said bearing element.