Invention Grant
- Patent Title: Filter device
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Application No.: US13261911Application Date: 2012-11-28
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Publication No.: US09643109B2Publication Date: 2017-05-09
- Inventor: Norbert Sann , Dirk Röder
- Applicant: Hydac Filtertechnik GmbH
- Applicant Address: DE Sulzback/Saar
- Assignee: HYDAC FILTERTECHNIK GMBH
- Current Assignee: HYDAC FILTERTECHNIK GMBH
- Current Assignee Address: DE Sulzback/Saar
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: DE102011120680 20111208
- International Application: PCT/EP2012/004901 WO 20121128
- International Announcement: WO2013/083245 WO 20130613
- Main IPC: B01D27/08
- IPC: B01D27/08 ; B01D35/30 ; B01D29/21 ; B01D29/96

Abstract:
A filter device has a filter element (3) received in a filter housing (1) and has a holding device (19) for detachably fixing the filter element in the filter housing (1). Corresponding threads (23, 33) form a screw connection between a housing cover (5) of the filter housing (1) and the filter element (3). A sealing device (29, 35) imparts a sealing action between the filter element (3) and the housing cover (5). The screw connection is formed by threads (23, 33) situated in the interior (22) of the filter element (3). The thread (33) assigned to the filter element (3) is situated on a connecting pipe piece (31) that, as a constituent part of an end cap (17) of the filter element (3), extends into the inner filter cavity (22) of the filter element (3). The thread (23) assigned to the housing cover (5) is situated on a receiving pipe piece (21), which can be screwed to the connecting pipe piece (31) of the filter element (3). The receiving pipe piece is formed by a separate component in the form of a pipe piece (21) attached to the housing cover (5).
Public/Granted literature
- US20140311961A1 FILTER DEVICE Public/Granted day:2014-10-23
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