Patents by Inventor Christopher E. Holm
Christopher E. Holm 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: 11439943Abstract: Filter media having a design embossed into the media are described. In some arrangements, the filter media is pleated filter media. In other arrangements, the filter media includes a plurality of channels, such as tetrahedron channels. The filter media includes a pattern of interrupted straight or angled embossments that help maintain separation between adjacent layers of the filter media. The embossments allow for two adjacent media layers (e.g., mating surfaces of the filter media) to remain separated, thereby increasing dust holding capacity and lowering pressure drop over similarly configured filter media not having the embossments.Type: GrantFiled: October 16, 2017Date of Patent: September 13, 2022Assignee: CUMMINS FILTRATION IP, INC.Inventors: Emmanuel Page, Anthony Barreteau, Kurt M. A. Badeau, Christopher E. Holm
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Patent number: 11400405Abstract: Various example embodiments relate to filter elements. One such filter element includes filter media having a plurality of flow channels. Each of the plurality of flow channels comprises an inlet having an inlet height and an outlet having an outlet height. The inlet height is larger than the outlet height. The filter media defines an inlet face having an inlet face area and an outlet face having an outlet face area. The inlet face is structured to receive air to be filtered. The outlet face is structured to output filtered air. The inlet face area is larger than the outlet face area.Type: GrantFiled: July 11, 2017Date of Patent: August 2, 2022Assignee: CUMMINS FILTRATION IP, INC.Inventors: Christopher E. Holm, Scott W. Schwartz
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Publication number: 20220235682Abstract: An axial flow element for use in a liquid separation system for an internal combustion engine includes a hub, a groove, a locking member, and a flat layer. The hub includes a cylindrical outer surface. The groove is disposed in the outer surface. The groove extends in a substantially longitudinal direction along the hub from a first end of the hub to a second end of the hub. The locking member is disposed in the groove. The flat layer is disposed between the hub and the locking member.Type: ApplicationFiled: May 15, 2020Publication date: July 28, 2022Applicant: Cummins Filtration IP, Inc.Inventors: Kenneth M. Tofsland, Christopher E. Holm, Chirag D. Parikh, Rajath Martin
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Patent number: 11331608Abstract: An attachment and retaining mechanism is described for removably attaching a rotating filter element to a rotating shaft. The rotating filter element includes a filter media that is driven by a drive mechanism that rotates the rotating shaft. The filter element is removably attached to the rotating shaft such that the filter element and filtration system can be periodically replaced and/or serviced. In some arrangements, the drive shaft includes a D-shaped section that interacts with a mating section of the filter element sleeve of the rotating filter element. In other arrangements, the drive shaft includes at least one flat drive surface.Type: GrantFiled: July 24, 2020Date of Patent: May 17, 2022Assignee: CUMMINS FILTRATION IP, INC.Inventors: Chirag D. Parikh, Christopher E. Holm, Bradley A. Smith
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Patent number: 11318403Abstract: An automatic drain device is configured for use with a fuel water separator filter system. The automatic drain device includes a solenoid, a water-in-fuel sensor, and a controller configured to operate the automatic drain device by activating the solenoid in response to a signal from the water-in-fuel sensor. The automatic drain device may be utilized with suction side and pressure side fuel water separator filter systems. The automatic drain device operates independently of any user input.Type: GrantFiled: August 16, 2016Date of Patent: May 3, 2022Assignee: CUMMINS FILTRATION IP, INC.Inventors: Amit Shashikant Wankhede, Peter K. Herman, Arun P. Janakiraman, Christopher E. Holm, Prashant Wani, Abhijit Shimpi
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Publication number: 20220118385Abstract: A filter assembly comprises a housing, a filter element for filtering a fluid and positionable within the housing, and an expansion membrane assembly. The expansion membrane assembly fluidly separates and is positionable between the housing and the filter element. The membrane assembly extends along an inner surface, a top surface, and an outer surface of the housing.Type: ApplicationFiled: December 28, 2021Publication date: April 21, 2022Applicant: CUMMINS FILTRATION IP, INC.Inventors: Bharath Siddaramanna Onkarappa, Mrinmayee Balasaheb Pokharkar, Nilesh Bhaskar Nagare, Nilay Shah, Christopher E. Holm, Frank Wolfgang Becker, Santoshini Choudhary
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Publication number: 20210381412Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Applicant: Cummins Filtration IP, Inc.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Patent number: 11174766Abstract: The combination of a gas-pressure-driven pump jet nozzle or alternatively Coanda effect nozzle with an impactor nozzle(s) in an air-oil separator for separating oil from blow-by gasses from a crankcase of an internal combustion engine, or for separating liquid aerosol from gas, in general. Such combination enhances impaction efficiency and enables operation at higher pressure differentials (or pressure drop) (“dP”) without causing excessive backpressure in the air-oil separator.Type: GrantFiled: July 6, 2020Date of Patent: November 16, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Peter K. Herman, Christopher E. Holm, Arun Janakiraman
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Patent number: 11173440Abstract: Various rotating coalescer elements are described. The rotating coalescer elements include various arrangements of stacked separator discs or cones. In some arrangements, the described rotating coalescer elements include a combination of stacked separator discs or cones and filter media. In some arrangements, the stacked separator discs are designed to provide the largest possible amount of radial-projected separation surface area in a given rotating cylindrical volume, where flow to be cleaned is passing radially (outwardly or inwardly) through the rotating coalescer element. In some arrangements, this is achieved by stacking non-conical separating plates containing various area-maximizing features (e.g., spiral ribs, axial cylinders, spiral grooves, or spiral “V” shapes).Type: GrantFiled: December 8, 2017Date of Patent: November 16, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Peter K. Herman, Christopher E. Holm, Mark V. Holzmann, Arun P. Janakiraman, Chirag D. Parikh, Miao Li
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Patent number: 11156137Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: GrantFiled: February 1, 2021Date of Patent: October 26, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Publication number: 20210291100Abstract: A separation assembly comprises a housing and a plate. The housing comprises an inlet and an outlet. The plate is positioned within the housing between the inlet and the outlet. The plate comprises a wall, at least one aperture, and at least one chimney comprising an inner surface surrounding the at least one aperture and an outer surface. The chimney extends from an upstream side of the wall and encompasses only a portion of a flow path between the inlet and the upstream side of the wall such that fluid can flow radially beyond the outer surface of the at least one chimney in the housing between the inlet and the wall.Type: ApplicationFiled: June 3, 2021Publication date: September 23, 2021Applicant: CUMMINS FILTRATION IP, INC.Inventors: Ruchi Lutade, Avinash Ayarekar, Christopher E. Holm, Benjamin L. Scheckel, Sachin Ravasaheb Managave, Vijay Dinkar Kolhe
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Publication number: 20210178300Abstract: Filter media and media packs that provide robust performance in high-speed rotating coalescer (HSRC) elements for crankcase ventilation systems are described. The fiber media is HSRC fiber media. As such, the filter media has a higher resistance to compressibility then traditional coalescer filter media, such as fiber media used in low-speed rotating coalescer arrangements or stationary coalescer arrangements.Type: ApplicationFiled: February 25, 2021Publication date: June 17, 2021Applicant: Cummins Filtration IP, Inc.Inventors: Brian W. SCHWANDT, Saru DAWAR, Christopher E. HOLM, Jerald J. MOY, Barry M. VERDEGAN
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Publication number: 20210170317Abstract: A filter media comprises a first fiber layer and a second fiber layer positioned downstream of the first fiber layer. The first fiber layer has a first geometric mean fiber diameter of less than 1 pm such that the geometric standard deviation of fiber diameter is greater than 2. The second fiber layer has a second geometric mean fiber diameter of less than 1 pm such that the geometric standard deviation of fiber diameter is less than 2.Type: ApplicationFiled: April 30, 2019Publication date: June 10, 2021Applicant: Cummins Filtration IP, Inc.Inventors: Eric A. Janikowski, Huanling Liu, Christopher E. Holm, Mark T. Wieczorek, Barry Mark Verdegan
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Publication number: 20210156286Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the first housing section and endcap. The filter media is structured to filter the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shall forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: ApplicationFiled: February 1, 2021Publication date: May 27, 2021Applicant: Cummins Filtration IP, Inc.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Patent number: 10974182Abstract: Filter media and media packs that provide robust performance in high-speed rotating coalescer (HSRC) elements for crankcase ventilation systems are described. The filter media is HSRC filter media. As such, the filter media has a higher resistance to compressibility than traditional coalescer filter media, such as filter media used in low-speed rotating coalescer arrangements or stationary coalescer arrangements.Type: GrantFiled: August 19, 2016Date of Patent: April 13, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Brian W. Schwandt, Saru Dawar, Christopher E. Holm, Jerald J. Moy, Barry M. Verdegan
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Patent number: 10953356Abstract: Disclosed is a composite filter media. The composite filter media is formed from multiple layers of media material including a nanofiber media layer, where the layers are laminated, bound, or otherwise composited to each other. The composite filter media can comprise at least one nanofiber layer comprising polymeric media material having a geometric mean fiber diameter of about 100 nm to 1 ?m, and fibers configured in a gradient such that ratio of the geometric mean diameter of fibers at the upstream face of the nano fiber layer to the geometric mean diameter of fibers at the downstream face of the nano fiber layer is about 1.1 to 2.8, preferably about 1.2 to 2.4.Type: GrantFiled: December 16, 2019Date of Patent: March 23, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: William C. Haberkamp, Eric A. Janikowski, Barry Mark Verdegan, Christopher E. Holm, Huanling Liu, Kyle Ellison, Mark T. Wieczorek
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Patent number: 10927730Abstract: Various example embodiments relate to rotating coalescers. One embodiment includes a housing comprising a first housing section having a blowby gas inlet structured to receive crankcase blowby gases from a crankcase. The housing further comprises an oil outlet. The rotating coalescer includes an endcap and filter media. The filter media is arranged in a cylindrical shape and is coupled to and positioned between the crankcase blowby gases passing through the filter media by coalescing and separating oils and aerosols contained in the crankcase blowby gases. The rotating coalescer includes a hollow shaft extending through the housing and positioned radially inside of the filter media. The hollow shaft forms a blowby gas outlet structured to route filtered crankcase blowby gases out of the housing. The rotating coalescer further includes a drive mechanism operatively coupled to the hollow shaft.Type: GrantFiled: June 16, 2020Date of Patent: February 23, 2021Assignee: CUMMINS FILTRATION IP, INC.Inventors: Anthony Barreteau, Christopher E. Holm, Benjamin L. Scheckel, Alain Olier
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Publication number: 20210046413Abstract: Filter media including one or multiple sheets of filter media, an upstream inlet, and a downstream outlet. A pleat pack can be formed by alternately folding a flat sheet along pleat fold lines with a high media surface density. The flat sheet of filter media may include a separation geometry feature or separation mechanism that maintains a separation distance between adjacent pleats of the filter media. A separation geometry can comprise one or more embossments forming a raised surface, an inlet spacer mesh and/or an outlet spacer mesh positioned between adjacent pleats, and/or an adhesive bead. The upstream inlet receives dirty fluid along a first direction and the downstream outlet discharges clean fluid along a second direction substantially not parallel to the first direction. The filter element defines an angle between the inlet and outlet flow, allowing large dust particles to move out of the media pack due to inertia.Type: ApplicationFiled: May 7, 2019Publication date: February 18, 2021Applicant: CUMMINS FILTRATION IP, INC.Inventors: Ming Ouyang, Christopher E. Holm, Scott W. Schwartz, Matthew Louison, Miao Li, Jeremiah Cupery, Mark P. Adams, Shantanu Sanjay Ghatnekar
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Publication number: 20200353396Abstract: An attachment and retaining mechanism is described for removably attaching a rotating filter element to a rotating shaft. The rotating filter element includes a filter media that is driven by a drive mechanism that rotates the rotating shaft. The filter element is removably attached to the rotating shaft such that the filter element and filtration system can be periodically replaced and/or serviced. In some arrangements, the drive shaft includes a D-shaped section that interacts with a mating section of the filter element sleeve of the rotating filter element. In other arrangements, the drive shaft includes at least one flat drive surface.Type: ApplicationFiled: July 24, 2020Publication date: November 12, 2020Applicant: Cummins Filtration IP, Inc.Inventors: Chirag D. Parikh, Christopher E. Holm, Bradley A. Smith
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Publication number: 20200332686Abstract: The combination of a gas-pressure-driven pump jet nozzle or alternatively Coanda effect nozzle with an impactor nozzle(s) in an air-oil separator for separating oil from blow-by gasses from a crankcase of an internal combustion engine, or for separating liquid aerosol from gas, in general. Such combination enhances impaction efficiency and enables operation at higher pressure differentials (or pressure drop) (“dP”) without causing excessive backpressure in the air-oil separator.Type: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Applicant: CUMMINS FILTRATION IP, INC.Inventors: Peter K. Herman, Christopher E. Holm, Arun Janakiraman