Patents by Inventor Arun Janakiraman
Arun Janakiraman 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: 9737835Abstract: A gas-liquid separator comprises a housing having an inlet for receiving a gas-liquid stream and an outlet for discharging a gas stream. An impactor nozzle structure is supported by the housing and situated downstream of the inlet. The impactor nozzle structure receives the gas-liquid stream and accelerates the gas-liquid stream through an orifice that extends through the impactor nozzle structure. An impaction surface is supported by the housing and situated downstream of the orifice. The impaction surface receives the accelerated gas-liquid stream and causes separation of liquid particles from the gas-liquid stream so as to produce the gas stream, and a baffle situated downstream of the impaction surface modifies a flow of the gas stream so as to reduce carryover of liquid particles in the gas stream. A shroud for an inertial impactor gas-liquid separator is disclosed. A method for separating liquid particles from a gas-liquid stream is disclosed.Type: GrantFiled: July 30, 2013Date of Patent: August 22, 2017Assignee: Cummins Filtration IP, Inc.Inventors: Lee A. Peck, Peter K. Herman, Arun Janakiraman, Benjamin L. Scheckel, Navin K. Surana
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Publication number: 20170072356Abstract: A rotating separator has a housing preventing separated liquid carryover. A plenum between the annular rotating separating filter element and the housing sidewall has one or more flow path separating guides minimizing the flow of separated liquid to the outlet. The flow path guides may include one or more fins and/or swirl flow dampers and/or a configured surface.Type: ApplicationFiled: November 4, 2016Publication date: March 16, 2017Applicant: CUMMINS FILTRATION IP, INC.Inventors: CHIRAG D. PARIKH, ARUN JANAKIRAMAN, SARU DAWAR, JERALD J. MOY, HIMANI DESHPANDE, BRIAN W. SCHWANDT, BRIDGETTE L. MEYER, SHIMING FENG, ANNA BALAZY, VINCIL A. VARGHESE, BENJAMIN L. SCHECKEL
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Publication number: 20170065924Abstract: A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.Type: ApplicationFiled: November 21, 2016Publication date: March 9, 2017Applicant: CUMMINS FILTRATION IP, INC.Inventors: Mark V. Holzmann, Arun Janakiraman, Orvin D. Kendall, Scott W. Schwartz, Eric A. Janikowski, Michael J. Connor, Kurt M. A. Badeau, Murray R. Schukar
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Patent number: 9545591Abstract: A rotating separator has a housing preventing separated liquid carryover. A plenum between the annular rotating separating filter element and the housing sidewall has one or more flow path separating guides minimizing the flow of separated liquid to the outlet. The flow path guides may include one or more fins and/or swirl flow dampers and/or a configured surface.Type: GrantFiled: October 9, 2015Date of Patent: January 17, 2017Assignee: CUMMINS FILTRATION IP, INC.Inventors: Chirag D. Parikh, Arun Janakiraman, Saru Dawar, Jerald J. Moy, Himani Deshpande, Brian W. Schwandt, Bridgette L. Meyer, Shiming Feng, Anna Balazy, Vincil A. Varghese, Benjamin L. Scheckel
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Publication number: 20160350315Abstract: In order to facilitate access to pages in documents (such as slides in presentations and/or frames in videos), a system may create pointers specifying the pages in the documents, and may aggregate the pointers in an index. For example, the index may be aggregated based on keywords in content in the documents, metadata associated with the documents and/or presentation formats of the pages. Then, when the system receives a search query, the system may identify a match in the pointers in the index based on the search query and the keywords, the metadata and/or the presentation formats in the index. Next, the system may provide a pointer in the index based on the match. This pointer may allow a page in a document to be accessed without extracting or copying the page.Type: ApplicationFiled: June 1, 2015Publication date: December 1, 2016Applicant: Linkedln CorporationInventors: Arun Janakiraman, Sumanth Kolar, Benjamin N. Silver
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Publication number: 20160350405Abstract: In order to facilitate access to pages in documents, a system may ingest pointers that specify the pages in the documents from hypertext documents on a network, and may aggregate the ingested pointers in an index. For example, the index may be aggregated based on keywords in content in the documents, metadata associated with the documents and/or presentation formats of the pages. Then, when the system receives a search query, the system may identify a match in the pointers in the index based on the search query and the keywords, the metadata and/or the presentation formats in the index. Next, the system may provide a link with a pointer in the index based on the match. When the system receives information specifying activation of the link, the system may access a page in a document associated with a hypertext document, without extracting or copying the page.Type: ApplicationFiled: June 1, 2015Publication date: December 1, 2016Applicant: Linkedln CorporationInventors: Arun Janakiraman, Sumanth Kolar, Benjamin N. Silver
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Patent number: 9504950Abstract: A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.Type: GrantFiled: September 26, 2014Date of Patent: November 29, 2016Assignee: CUMMINS FILTRATION IP, INC.Inventors: Mark V. Holzmann, Arun Janakiraman, Orvin D. Kendall, Scott W. Schwartz, Eric A. Janikowski, Michael J. Connor, Kurt M. A. Badeau, Murray R. Schukar
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Publication number: 20160032798Abstract: 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: March 27, 2014Publication date: February 4, 2016Applicant: Cummins Filtration IP, Inc.Inventors: Peter K. Herman, Christopher E. Holm, Arun Janakiraman
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Publication number: 20160030875Abstract: A rotating separator has a housing preventing separated liquid carryover. A plenum between the annular rotating separating filter element and the housing sidewall has one or more flow path separating guides minimizing the flow of separated liquid to the outlet. The flow path guides may include one or more fins and/or swirl flow dampers and/or a configured surface.Type: ApplicationFiled: October 9, 2015Publication date: February 4, 2016Applicant: CUMMINS FILTRATION IP, INC.Inventors: Chirag D. PARIKH, Arun JANAKIRAMAN, Saru DAWAR, Jerald J. MOY, Himani DESHPANDE, Brian W. SCHWANDT, Bridgette L. MEYER, Shiming FENG, Anna BALAZY, Vincil A. VARGHESE, Benjamin L. SCHECKEL
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Patent number: 9194265Abstract: A rotating separator has a housing preventing separated liquid carryover. A plenum between the annular rotating separating filter element and the housing sidewall has one or more flow path separating guides minimizing the flow of separated liquid to the outlet. The flow path guides may include one or more fins and/or swirl flow dampers and/or a configured surface.Type: GrantFiled: October 30, 2012Date of Patent: November 24, 2015Assignee: Cummins Filtration IP, Inc.Inventors: Chirag D. Parikh, Arun Janakiraman, Saru Dawar, Jerald J. Moy, Himani Deshpande, Brian W. Schwandt, Bridgette L. Meyer, Shiming Feng, Anna Balazy, Vincil A. Varghese, Benjamin L. Scheckel
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Patent number: 9138671Abstract: A gas-liquid separator has a housing having an inlet for receiving a gas-liquid stream and an outlet for discharging a gas stream. A nozzle structure in the housing has a plurality of nozzles that receive the gas-liquid stream and accelerate the gas-liquid stream therethrough to create a plurality of gas-liquid jets. An inertial collector in the housing causes a sharp directional change of the gas-liquid jets, causing separation of liquid particles from the gas-liquid stream to produce the gas stream. The inertial collector has a porous collection substrate. According to the present disclosure, at least one of the following three conditions is met: (a) the porous collection substrate comprises fibers of small diameter and has low packing density; (b) the porous collection substrate comprises oleophobic fibers; and (c) the nozzle structure and the inertial collector are configured to allow for full expansion of the plurality of gas-liquid jets.Type: GrantFiled: August 27, 2013Date of Patent: September 22, 2015Assignee: CUMMINS FILTRATION IP, INC.Inventors: Arun Janakiraman, Benjamin L. Scheckel, Ashwin K. Koleshwar, Lee A. Peck, Saru Dawar
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Publication number: 20150027422Abstract: An internal combustion engine crankcase ventilation rotating coalescer includes an annual rotating coalescing filter element, an inlet port supplying blow by gas from the crankcase to the hollow interior of the annular rotating coalescing filter element, and an outlet port delivering clean separated, air from the exterior of the rotating element. The direction of flow by gas inside-out, radially, outwardly from the hollow interior to the exterior.Type: ApplicationFiled: July 1, 2014Publication date: January 29, 2015Inventors: Brian W. Schwandt, Scott P. Heckel (Deceased), Saru Dawar, Chirag D. Parikh, Christopher E. Holm, Peter K. Herman, Gregory W. Hoverson, Rohit Sharma, Benoit Le Roux, Jean-Luc Guichaoua, Shiming Feng, Gerard Malgorn, Arun Janakiraman, Jerald J. Moy, Himani Deshpande, Barry M. Verdegan, Howard E. Tews, Roger L. Zoch
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Publication number: 20150013290Abstract: A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.Type: ApplicationFiled: September 26, 2014Publication date: January 15, 2015Applicant: CUMMINS FILTRATION IP, INC,Inventors: Mark V. Holzmann, Arun Janakiraman, Orvin D. Kendall, Scott W. Schwartz, Eric A. Janikowski, Michael J. Connor, Kurt M. A. Badeau, Murray R. Schukar
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Patent number: 8888885Abstract: A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.Type: GrantFiled: March 5, 2012Date of Patent: November 18, 2014Assignee: Cummins Filtration IP Inc.Inventors: Anthony Barreteau, Arun Janakiraman, Kurt M. A. Badeau
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Patent number: 8852310Abstract: A pleated filter media comprises a plurality of pleats comprised of pleat segments extending in an axial direction between first and second axial ends and extending in a transverse direction that is perpendicular to the axial direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines. Axial flow channels are defined between the pleat segments in the lateral direction and the plurality of pleats has a width in the transverse direction that varies along the axial direction.Type: GrantFiled: August 31, 2011Date of Patent: October 7, 2014Assignee: Cummins Filtration IP Inc.Inventors: Mark V. Holzmann, Arun Janakiraman, Orvin D. Kendall, Scott W. Schwartz, Eric A. Janikowski, Michael J. Connor, Kurt M. A. Badeau, Murray R. Schukar
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Patent number: 8794222Abstract: An internal combustion engine crankcase ventilation rotating coalescer includes an annular rotating coalescing filter element, an inlet port supplying blowby gas from the crankcase to the hollow interior of the annular rotating coalescing filter element, and an outlet port delivering cleaned separated air from the exterior of the rotating element. The direction of blowby gas is inside-out, radially outwardly from the hollow interior to the exterior.Type: GrantFiled: December 16, 2010Date of Patent: August 5, 2014Assignee: Cummins Filtration IP, Inc.Inventors: Brian W. Schwandt, Saru Dawar, Chirag Parikh, Christopher E. Holm, Peter K. Herman, Gregory W. Hoverson, Rohit Sharma, Benoit Le Roux, Jean-Luc Goichaoua, Shiming Feng, Gerard Malgorn, Arun Janakiraman, Jerald J. Moy, Himani Deshpande, Barry M. Verdegan, Howard E. Tews, Roger L. Zoch, Bryan P. Steffen, Patricia E. Heckel
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Publication number: 20140059985Abstract: A gas-liquid separator has a housing having an inlet for receiving a gas-liquid stream and an outlet for discharging a gas stream. A nozzle structure in the housing has a plurality of nozzles that receive the gas-liquid stream and accelerate the gas-liquid stream therethrough to create a plurality of gas-liquid jets. An inertial collector in the housing causes a sharp directional change of the gas-liquid jets, causing separation of liquid particles from the gas-liquid stream to produce the gas stream. The inertial collector has a porous collection substrate. According to the present disclosure, at least one of the following three conditions is met: (a) the porous collection substrate comprises fibers of small diameter and has low packing density: (b) the porous collection substrate comprises oleophobic fibers; and (c) the nozzle structure and the inertial collector are configured to allow for full expansion of the plurality of gas-liquid jets.Type: ApplicationFiled: August 27, 2013Publication date: March 6, 2014Applicant: CUMMINS FILTRATION IP, INC.Inventors: Arun Janakiraman, Benjamin L. Scheckel, Ashwin K. Koleshwar, Lee A. Peck, Saru Dawar
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Publication number: 20140033921Abstract: A gas-liquid separator comprises a housing having an inlet for receiving a gas-liquid stream and an outlet for discharging a gas stream. An impactor nozzle structure is supported by the housing and situated downstream of the inlet. The impactor nozzle structure receives the gas-liquid stream and accelerates the gas-liquid stream through an orifice that extends through the impactor nozzle structure. An impaction surface is supported by the housing and situated downstream of the orifice. The impaction surface receives the accelerated gas-liquid stream and causes separation of liquid particles from the gas-liquid stream so as to produce the gas stream, and a baffle situated downstream of the impaction surface modifies a flow of the gas stream so as to reduce carryover of liquid particles in the gas stream. A shroud for an inertial impactor gas-liquid separator is disclosed. A method for separating liquid particles from a gas-liquid stream is disclosed.Type: ApplicationFiled: July 30, 2013Publication date: February 6, 2014Applicant: Cummins Filtration IP, Inc.Inventors: Lee A. Peck, Peter K. Herman, Arun Janakiraman, Benjamin L. Scheckel, Navin K. Surana
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Patent number: 8549850Abstract: According to one representative embodiment, an aspirator for cooling exhaust gas from an internal combustion engine includes a nozzle section, an expansion section, and an air entrainment section. The nozzle section is communicable in exhaust receiving communication with the internal combustion engine. The nozzle section includes a plurality of nozzles through which an exhaust gas stream is flowable. The expansion section is communicable in exhaust receiving communication with the plurality of nozzles. The air entrainment section is communicable in air supplying communication with the expansion section. The air is mixable with the exhaust gas within the expansion section.Type: GrantFiled: October 31, 2008Date of Patent: October 8, 2013Assignee: Cummins Filtration IP, Inc.Inventors: Arun Janakiraman, Shiming Feng
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Patent number: 8470062Abstract: A drain tube for an air-oil separator system, the tube being configured vertically in the system, the tube having an upper opening for receiving oil separated from air in the system, and a lower opening for releasing oil separated from air in the system, wherein the upper opening has a horizontal cross-sectional area that is greater than a horizontal cross-sectional area of the lower opening.Type: GrantFiled: January 11, 2011Date of Patent: June 25, 2013Assignee: Cummins Filtration IP Inc.Inventors: Peter K. Herman, Ashwin K. Koleshwar, Glenn B. Schneider, Arun Janakiraman, Vinay Joshi, Kwok-Lam Ng, Srikanth Varaganti, Bradley Smith