Patents by Inventor Rodger I. Spears
Rodger I. Spears 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).
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Publication number: 20120304609Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: ApplicationFiled: August 13, 2012Publication date: December 6, 2012Applicant: Donaldson Company., Inc.Inventors: KEVIN J. SCHRAGE, Eugene Lensing, Jeff S. Rahlf, Wayne R.W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Patent number: 8241383Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: GrantFiled: April 4, 2011Date of Patent: August 14, 2012Assignee: Donaldson Company, Inc.Inventors: Kevin J. Schrage, Eugene Lensing, Jeff S. Rahlf, Wayne R. W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Publication number: 20110232244Abstract: Z-filter media pack arrangements and methods for providing them are described. The preferred arrangements have a cured-in-place jacket around an outside of a coiled z-filter media combination. The preferred cured-in-place jacket is a mold-in-place overmold which includes, integral therein, a housing seal arrangement. Preferably a cured-in-place center core is used, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: ApplicationFiled: April 4, 2011Publication date: September 29, 2011Applicant: Donaldson Company, Inc.Inventors: KEVIN J. SCHRAGE, Eugene Lensing, Jeff S. Rahlf, Wayne R.W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Patent number: 7967886Abstract: Z-filter media pack arrangements and methods for providing them are described. Certain aspects concern a cured-in-place seal on an outside of a coiled z-filter media combination. Other aspects concern a cured-in-place center core, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: GrantFiled: June 6, 2005Date of Patent: June 28, 2011Assignee: Donaldson Company, Inc.Inventors: Kevin J. Schrage, Eugene Lensing, Jeff S. Rahlf, Wayne R. W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Patent number: 7901343Abstract: The present invention provides a self-cleaning drying centrifuge for removing fluid from a concentrated particulate-filled fluid and peeling mostly dried particulate (solid) material from the centrifuge. In some embodiments, a high-efficiency centrifuge performs an initial separation and concentration of small particles from a contaminated fluid, and outputs a clarified fluid for reuse, and periodically purges concentrated particulates with high fluid content. The purged concentrate is then fed into the present invention's drying centrifuge, which substantially reduces the remaining fluid content. In some embodiments, the drying centrifuge is periodically stopped and one or more internal blades (peelers) are rotated around the inner wall of the drying centrifuge bowl to peel the accumulated solids, which drop into a collection container.Type: GrantFiled: July 30, 2007Date of Patent: March 8, 2011Assignee: Advanced Products Laboratories, Inc.Inventors: Denis J. Dudrey, James N. Gehrking, Adelbert Gorham, Ronald L. Jorgenson, Rodger I. Spears, Lloyd E. Weisert
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Publication number: 20080250766Abstract: Z-filter media pack arrangements and methods for providing them are described. Certain aspects concern a cured-in-place seal on an outside of a coiled z-filter media combination. Other aspects concern a cured-in-place center core, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.Type: ApplicationFiled: June 6, 2005Publication date: October 16, 2008Applicant: Donaldson Company, Inc.Inventors: Kevin J. Schrage, Eugene Lensing, Jeff S. Rahlf, Wayne R.W. Bishop, Gregory L. Reichter, Benny K. Nelson, Rodger I. Spears, Bruce R. Crenshaw, Vladimir Kladnitsky
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Publication number: 20080026926Abstract: The present invention provides a self-cleaning drying centrifuge for removing fluid from a concentrated particulate-filled fluid and peeling mostly dried particulate (solid) material from the centrifuge. In some embodiments, a high-efficiency centrifuge performs an initial separation and concentration of small particles from a contaminated fluid, and outputs a clarified fluid for reuse, and periodically purges concentrated particulates with high fluid content. The purged concentrate is then fed into the present invention's drying centrifuge, which substantially reduces the remaining fluid content. In some embodiments, the drying centrifuge is periodically stopped and one or more internal blades (peelers) are rotated around the inner wall of the drying centrifuge bowl to peel the accumulated solids, which drop into a collection container.Type: ApplicationFiled: July 30, 2007Publication date: January 31, 2008Applicant: ADVANCED PRODUCTS LABORATORIES, INC.Inventors: Denis J. Dudrey, James N. Gehrking, Adelbert Gorham, Ronald L. Jorgenson, Rodger I. Spears, Lloyd E. Weisert
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Patent number: 7077799Abstract: A self-cleaning centrifuge for clarifying contaminated liquids has a rotor assembly comprising nested first and second sets of concentric cylinders supported for rotation about an axis. The sets of concentric cylinders are rotatably connected. A motor is connected to rotate one of the sets. Contaminated liquid is supplied to the nested cylinders, and the liquid provides coupling between both of the sets so that both sets rotate about the axis. Centrifugal force causes foreign matter to collect on the circumferential surfaces of the cylinders. The resultant clarified liquid is collected for reuse. A selectively utilized brake provides sudden braking of one of the rotating sets to purge collected foreign matter from the cylinders. The purged foreign matter is collected for disposal.Type: GrantFiled: November 28, 2003Date of Patent: July 18, 2006Assignee: Advanced Products Laboratories, Inc.Inventors: Adelbert Gorham, Denis J. Dudrey, James N. Gehrking, Ronald L. Jorgenson, David S. Paulson, Rodger I. Spears, Lloyd E. Weisert
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Publication number: 20040112824Abstract: A self-cleaning centrifuge for clarifying contaminated liquids has a rotor assembly comprising nested first and second sets of concentric cylinders supported for rotation about an axis. The sets of concentric cylinders are rotatably connected. A motor means is connected to rotate one of the sets. Means supply contaminated liquid to the nested cylinders, and the liquid provides coupling between both of the sets so that both sets rotate about the axis. Centrifugal force causes foreign matter to collect on the circumferential surfaces of the cylinders. The resultant clarified liquid is collected for reuse. Selectively utilized brake means provides sudden braking of one of the rotating sets to purge collected foreign matter from the cylinders. The purged foreign matter is collected for disposal.Type: ApplicationFiled: November 28, 2003Publication date: June 17, 2004Inventors: Adelbert Gorham, Denis J. Dudrey, James N. Gehrking, Ronald L. Jorgenson, David S. Paulson, Rodger I. Spears, Lloyd E. Weisert