Gerald D Kiral

20020139735, Oct 3, 2002

Feb 25, 2002

10/084769

Eivind Stenersen - River Falls WI, US
David Harder - Burnsville MN, US
John Hacker - Bloomington MN, US
Gerald Kiral - Bloomington MN, US
Ronald Streitmatter - Champaign IL, US
Kevin Socha - Peoria IL, US

Donaldson Company, Inc. - Minneapolis MN

F01M001/00

210/168000

Liquid filter constructions include a baffle plate secured to a can, by way of laser welding. A filter element is operably oriented within the interior of the can. The filter element includes a first end cap and a media pack secured to the first end cap. In some embodiments, the first end cap radially abuts an outer, annular surface of a tubular member of the baffle plate to form a radially directed seal between the first end cap and the tubular member. Liquid filter constructions of this type have a burst strength between 500-800 psi (about 3.4-5.5 MPa), along a longitudinal section of the can wall. Constructions of this type eliminate a roll or lock seam, an inner gasket, an inner compressive spring, and a gasket retainer. Systems for using liquid filters are described herein. Methods of constructing and using these types of filter arrangements are also described.

6384369, May 7, 2002

Sep 1, 2000

09/653653

Eivind Stenersen - River Falls WI
David B. Harder - Burnsville MN
John R. Hacker - Bloomington MN
Gerald D. Kiral - Bloomington MN
Ronald W. Streitmatter - Champaign IL
Kevin K. Socha - Peoria IL

Donaldson Company, Inc. - Minneapolis MN
Caterpillar, Inc. - Peoria IL

B23K 2600

21912164, 21912185, 21912116

Liquid filter constructions include a baffle plate secured to a can, by way of laser welding. A filter element is operably oriented within the interior of the can. The filter element includes a first end cap and a media pack secured to the first end cap. In some embodiments, the first end cap radially abuts an outer, annular surface of a tubular member of the baffle plate to form a radially directed seal between the first end cap and the tubular member. Liquid filter constructions of this type have a burst strength between 500-800 psi (about 3. 4-5. 5 MPa), along a longitudinal section of the can wall. Constructions of this type eliminate a roll or lock seam, an inner gasket, an inner compressive spring, and a gasket retainer. Systems for using liquid filters are described herein. Methods of constructing and using these types of filter arrangements are also described.