Filter element

Details Filter element Filter element

2006-06-21

2008-10-28

Smith, Duane (Department: 1797)

Gas separation

With means securing or retaining separating media

Unit or cohesive sheet-like media in flow line or frame

C055S502000, C055S521000, C055SDIG031

Reexamination Certificate

active

07442221

ABSTRACT:
A filter element, particularly a secondary element for a filter system in the intake tract of an internal combustion engine, which filter element includes a zig-zag pleated filter medium surrounded by a circumferential frame of polyurethane foam. The frame has a substantially oval contour and is insertable into an oval opening. To reproduce the oval contour, the plate-like medium has beveled lateral regions, such that a maximum effective filter surface is obtained with a minimum amount of waste. A circumferential groove or a circumferential web is provided in the frame to seal the polyurethane foam frame to the opening.

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European Search Report dated Sep. 20, 2006 (eight (8) pages).

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