Patents by Inventor Gerald D. Kiral

Gerald D. Kiral has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Liquid filter construction and methods
    Publication number: 20020139735
    Abstract: 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.
    Type: Application
    Filed: February 25, 2002
    Publication date: October 3, 2002
    Applicant: Donaldson Company, Inc.
    Inventors: Eivind Stenersen, David B. Harder, John R. Hacker, Gerald D. Kiral, Ronald W. Streitmatter, Kevin K. Socha
  • Liquid filter construction and methods
    Patent number: 6384369
    Abstract: 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.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: May 7, 2002
    Assignees: Donaldson Company, Inc., Caterpillar, Inc.
    Inventors: Eivind Stenersen, David B. Harder, John R. Hacker, Gerald D. Kiral, Ronald W. Streitmatter, Kevin K. Socha