Patents by Inventor Zemin Jiang
Zemin Jiang 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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Patent number: 8440083Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: GrantFiled: September 21, 2011Date of Patent: May 14, 2013Assignee: Cummins Filtration IP, Inc.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Publication number: 20130087497Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.Type: ApplicationFiled: November 27, 2012Publication date: April 11, 2013Applicant: CUMMINS FILTRATION IP, INC.Inventors: Aaron M. WELLS, Terry W. SHULTS, Ismail C. BAGCI, Dean OLSON, Zemin JIANG, Kevin C. SOUTH, Peter K. HERMAN, Hendrik N. AMIRKHANIAN, Jeffrey B. SHARP, David P. GENTER, Norman C. BLIZARD, Melvin Douglas MCCORMICK, Jeffrey A. HUSBAND, Wassem ABDALLA, Michael J. CONNOR, Barry M. VERDEGAN, Donna BUTLER, Chad T. BRUMMITT
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Patent number: 8333890Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.Type: GrantFiled: October 27, 2009Date of Patent: December 18, 2012Assignee: Cummins Filtration IP, Inc.Inventors: Aaron M. Wells, Terry W. Shults, Ismail C. Bagci, Dean Olson, Zemin Jiang, Kevin C. South, Peter K. Herman, Hendrik Amirkhanian, Jeffrey B. Sharp, David P. Genter, Norman C. Blizard, Melvin Douglas McCormick, Jeffrey A. Husband, Wassem Abdalla, Michael J. Connor, Barry M. Verdegan, Donna Butler, Chad T. Brummitt
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Publication number: 20120006737Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: ApplicationFiled: September 21, 2011Publication date: January 12, 2012Applicant: CUMMINS FILTRATION IP, INC.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Patent number: 7955500Abstract: An assembly is disclosed that includes a centerpost assembly and a fluid filter cartridge. The centerpost assembly includes a main body having an inlet flow opening, an open interior, and a radial flange. An interior shelf is positioned proximate the inlet flow opening of the main body. The interior shelf includes an interior flow opening. A check valve ball is movably positioned on the interior shelf to move between the inlet flow opening and the interior flow opening. A spring-loaded end cap is movably connected to an upper end of the main body and is configured to move between a compressed state and an uncompressed state. A blocking pin extends from a lower surface of the end cap. When the end cap is in the compressed state, the blocking pin prevents the check valve ball from blocking a flow of fluid from flowing through the interior flow opening.Type: GrantFiled: November 16, 2007Date of Patent: June 7, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Wassem Abdalla, Zemin Jiang
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Patent number: 7946430Abstract: A fuel filtration apparatus for use in an internal combustion engine comprises an interrupter valve in a flow path from an inlet port of a filter head to a compliant filter. The interrupter valve has an open state and a closed state. In the open state a protruding member of the filter depresses a bottom end of the valve and opens the flow path when the compliant filter is connected to the filter head. The interrupter valve also has a closed state wherein the flow path is closed in the absence of the protruding member of the filter (as with a non-compliant filter).Type: GrantFiled: May 15, 2007Date of Patent: May 24, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Charles W. Hawkins, Zemin Jiang, Yiming Jiang, Barry M. Verdegan
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Patent number: 7935255Abstract: A filter cartridge configured as a filter-in-filter design with an inner filter and an outer filter. The filter cartridge has features, for example an overhanging lip, to engage with a lid of a filter housing in which the cartridge is installed such that the lid is connected to the cartridge. As a result, the cartridge can be connected to the lid to facilitate installation and removal of the cartridge. Alternatively, the same features that allow connection with the lid permit a user to manually grasp the cartridge during installation and removal so that the cartridge can be used without a lid having attachment features. The filter cartridge is also designed to enable use of a longer inner filter within the outer filter. A longer inner filter increases the amount of filter media available for filtering the fluid.Type: GrantFiled: September 6, 2007Date of Patent: May 3, 2011Assignee: Cummins Filtration IP, Inc.Inventor: Zemin Jiang
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Publication number: 20110073538Abstract: A “no filter, no run” filtration system that is designed to verify that a filter cartridge is present to safe-guard against damage to fuel injectors, associated fuel components, etc. and engine malfunctions. Fuel flow to the engine is prevented altogether or permitted in an amount insufficient to allow engine operation if a filter cartridge is not installed, and an appropriately designed filter cartridge is required to be used in order to permit sufficient fuel flow for engine operation. In one embodiment, a flow restriction valve is provided that includes a ball.Type: ApplicationFiled: December 3, 2010Publication date: March 31, 2011Applicant: CUMMINS FILTRATION IP, INC.Inventors: Zemin JIANG, Wassem ABDALLA, Jeffrey B. SHARP, Hendrik AMIRKHANIAN, Jeff HUSBAND, Abby TRUE-DAHL
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Patent number: 7887704Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: GrantFiled: August 8, 2007Date of Patent: February 15, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Patent number: 7867387Abstract: A “no filter, no run” filtration system that is designed to verify that a filter cartridge is present to safe-guard against damage to fuel injectors, associated fuel components, etc. and engine malfunctions. Fuel flow to the engine is prevented altogether or permitted in an amount insufficient to allow engine operation if a filter cartridge is not installed, and an appropriately designed filter cartridge is required to be used in order to permit sufficient fuel flow for engine operation. In one embodiment, a flow restriction valve is provided that includes a ball.Type: GrantFiled: November 9, 2007Date of Patent: January 11, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Zemin Jiang, Wassem Abdalla, Jeffrey B. Sharp, Hendrik Amirkhanian, Jeff Husband, Abby True-Dahl
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Patent number: 7857974Abstract: A filter cartridge for use in filtering fluids, for example fuel, lubrication, hydraulic and other liquids, as well as air. The filter cartridge is a filter-in-filter design with an inner filter and an outer filter. The inner filter and the outer filter, for example the bottom end plates thereof, are connected to each other via a snap fit connection mechanism. During manufacture, the inner filter can be inserted into the outer filter, with the snap fit connection mechanism retaining the inner filter in the outer filter.Type: GrantFiled: September 6, 2007Date of Patent: December 28, 2010Assignee: Cummins Filtration IP, Inc.Inventor: Zemin Jiang
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Patent number: 7749383Abstract: A filter cartridge in a filter-in-filter design with an inner filter and an outer filter. A mechanism, for example crush ribs, connects an upper end plate of the outer filter and an upper end plate of the inner filter to prevent relative axial and radial movement therebetween when assembled. Relative axial or radial motion can create a rattling noise which is sometimes perceived as a low quality filter. The crush ribs are, for example, formed on an interior surface of the upper end plate of the outer filter, and the ribs engage an outer perimeter of the upper end plate of the inner filter. One or more of the ribs crush when the inner filter is installed into the outer filter to ensure tight axial and radial engagement between the filters.Type: GrantFiled: September 6, 2007Date of Patent: July 6, 2010Assignee: Cummins Filtration IP, Inc.Inventor: Zemin Jiang
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Publication number: 20100101993Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.Type: ApplicationFiled: October 27, 2009Publication date: April 29, 2010Applicant: CUMMINS FILTRATION IP INC.Inventors: Aaron M. Wells, Terry W. Shults, Ismail C. Bagci, Dean Olson, Zemin Jiang, Kevin C. South, Peter K. Herman, Hendrik Amirkhanian, Jeffrey B. Sharp, David P. Genter, Norman C. Blizard, Melvin Douglas McCormick, Jeffrey A. Husband, Wassem Abdalla, Michael J. Connor, Barry M. Verdegan, Donna Butler, Chad T. Brummitt
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Publication number: 20090250402Abstract: One embodiment is a filter element including an outer filter media and an inner filter media. The outer filter media is operable to remove particulates present in a flow of fluid and/or coalesce water contained in the flow of fluid. The inner filter media is operable to remove particulates from the flow of fluid, separate water form the flow of fluid, and remove particulates from the flow of fluid. Other embodiments include unique apparatus, devices, systems, and methods relating to fuel filters and filtration. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present application shall become apparent from the detailed description and figures included herewith.Type: ApplicationFiled: June 17, 2009Publication date: October 8, 2009Applicant: CUMMINS FILTRATION IP INC.Inventors: Zemin Jiang, Melvin Douglas McCormick, David P. Genter, Norman C. Blizard, Jeffrey A. Husband, Michael J. Connor, Wassem Abdalla, Barry M. Verdegan
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Publication number: 20090127172Abstract: An assembly is disclosed that includes a centerpost assembly and a fluid filter cartridge. The centerpost assembly includes a main body having an inlet flow opening, an open interior, and a radial flange. An interior shelf is positioned proximate the inlet flow opening of the main body. The interior shelf includes an interior flow opening. A check valve ball is movably positioned on the interior shelf to move between the inlet flow opening and the interior flow opening. A spring-loaded end cap is movably connected to an upper end of the main body and is configured to move between a compressed state and an uncompressed state. A blocking pin extends from a lower surface of the end cap. When the end cap is in the compressed state, the blocking pin prevents the check valve ball from blocking a flow of fluid from flowing through the interior flow opening.Type: ApplicationFiled: November 16, 2007Publication date: May 21, 2009Inventors: Wassem Abdalla, Zemin Jiang
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Patent number: 7527739Abstract: An apparatus, system, and method are disclosed for multistage water separation. A first separation layer separates water droplets from a fuel flow by repelling the first water droplets. A coalescing layer may coalesce fine water droplets in the fuel flow. In one embodiment, a centrifugal separator directs the fuel flow tangentially to a filter wall and the centrifugal force of the fuel flow directed tangentially along the filter wall biases water droplets from the fuel flow. A second separation layer separates second water droplets from the fuel flow.Type: GrantFiled: August 15, 2005Date of Patent: May 5, 2009Assignee: Fleetguard IncInventors: Zemin Jiang, Ted S. Loftis, Mark J. Johnson, Barry M. Verdegan
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Publication number: 20090078631Abstract: A fuel heater module and a water-in-fuel sensor module are disclosed that are configured to be connected to an outside surface of a filter assembly. The fuel heater module includes an inlet port and an outlet port with a heating element positioned in the fluid path between the inlet and outlet. A thermostat is included for controlling operation of the heating element. The water-in-fuel sensor module is configured to detect water in the filter housing that it may be drained from the filter housing. Both modules are configured to be attached to an outside surface of the filter housing thereby being readily replaceable.Type: ApplicationFiled: September 24, 2008Publication date: March 26, 2009Inventors: Abby True-Dahl, Gerard Malgorn, Arnuad LeVen, Gildas LeMen, Mark Wieczorek, Zemin Jiang, Jeffrey A. Husband, Ismail C. Bagci, Charles W. Hawkins, Chad M. Thomas, Mark Johnson, Ted Loftis, Robert A. Bannister
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Publication number: 20090065427Abstract: A filter cartridge configured as a filter-in-filter design with an inner filter and an outer filter. The filter cartridge has features, for example an overhanging lip, to engage with a lid of a filter housing in which the cartridge is installed such that the lid is connected to the cartridge. As a result, the cartridge can be connected to the lid to facilitate installation and removal of the cartridge. Alternatively, the same features that allow connection with the lid permit a user to manually grasp the cartridge during installation and removal so that the cartridge can be used without a lid having attachment features. The filter cartridge is also designed to enable use of a longer inner filter within the outer filter. A longer inner filter increases the amount of filter media available for filtering the fluid.Type: ApplicationFiled: September 6, 2007Publication date: March 12, 2009Applicant: CUMMINS FILTRATION IP, INC.Inventor: Zemin JIANG
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Patent number: RE42059Abstract: A fluid filter centerpost assembly in combination with a fluid filter cartridge for creating a “no filter-no run” design according to one embodiment of the present invention comprises an oval-shaped design for the centerpost assembly and an oval-shaped design for a seal that is positioned between the centerpost assembly and the fluid filter cartridge. The centerpost assembly includes a main body having an oval shape in lateral cross section in unitary construction with a radial flange and interior shelf. The interior shelf defines a flow opening and a movable valve ball is positioned on the interior shelf and is able to move in the direction of the flow opening due to incoming fluid pressure. The fluid filter cartridge includes a closed endcap with a blocking pin such that when the fluid filter cartridge is installed, the blocking pin is positioned to prevent the valve ball from closing off the flow opening.Type: GrantFiled: April 25, 2007Date of Patent: January 25, 2011Assignee: Cummins Filtration IP Inc.Inventor: Zemin Jiang
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Patent number: D638034Type: GrantFiled: March 11, 2009Date of Patent: May 17, 2011Assignee: Cummins Filtration IP, Inc.Inventors: Zemin Jiang, Wassem Abdalla, Chad Brummitt