Patents by Inventor Navtej Singh

Navtej Singh 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).

  • Publication number: 20130160430
    Abstract: A method of providing hydrocarbons to an engine exhaust for regenerating a diesel particulate filter within an exhaust system of a diesel engine. A mass flow rate of exhaust gas within an exhaust system is determined. A mass flow rate of oxygen within the exhaust gas entering the diesel oxidation catalyst is determined. A set point indicative of an allowable mass flow rate of oxygen within the exhaust gas exiting the diesel oxidation catalyst is received. A hydrocarbon threshold that may be injected into the exhaust system is calculated. Hydrocarbons are injected into the exhaust system upstream of the diesel oxidation catalyst, wherein the injected hydrocarbons do not exceed the calculated threshold amount of hydrocarbons.
    Type: Application
    Filed: June 4, 2010
    Publication date: June 27, 2013
    Inventors: Navtej Singh, Adam C. Lack
  • Publication number: 20120247089
    Abstract: A system and method relate to a reductant dosing for use in the reduction of NOx in an exhaust stream is disclosed. The system and method incorporates a separate first or start-up cartridge and an insulated mantel or housing containing at least one to a plurality of main cartridges. The first and main cartridges store an ammonia adsorbing/desorbing material, which releases ammonia gas upon application of sufficient heat. The start-up cartridge permits the initial release of ammonia gas into the exhaust stream even during start-up of an engine, and because it is separate from the main cartridge, the first cartridge cools faster than the main cartridge and can be replenished with ammonia sooner than the main cartridge. The start-up cartridge is housed in or surrounded by a non-insulating debris shield.
    Type: Application
    Filed: February 6, 2012
    Publication date: October 4, 2012
    Applicant: International Engine Intellectual Property Company LLC
    Inventors: Gregory A. Griffin, Timothy Yoon, Jeffrey R. Kelso, Adam C. Lack, Jason B. Arriaga, Navtej Singh
  • Patent number: 7049565
    Abstract: The present invention utilizes a dynamically controlled frequency system for the process of induction heating semi-solid material. Semi-solid precursor material is machined into billets of a desired size. These billets are subjected to one or more heating processes utilizing an induction heating process that is dynamically controlled by adjusting the frequency of an induction coil current to achieve a desired temperature in a semi-solid material billet.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: May 23, 2006
    Inventors: Navtej Singh Saluja, Alfredo Riviere
  • Publication number: 20030213798
    Abstract: The present invention utilizes a dynamically controlled frequency system for the process of induction heating semi-solid material. Semi-solid precursor material is machined into billets of a desired size. These billets are subjected to one or more heating processes utilizing an induction heating process that is dynamically controlled by adjusting the frequency of an induction coil current to achieve a desired temperature in a semi-solid material billet.
    Type: Application
    Filed: February 28, 2003
    Publication date: November 20, 2003
    Inventors: Navtej Singh Saluja, Alfredo Riviere
  • Publication number: 20030216109
    Abstract: The present invention discloses a process for cleaning oxides, slurry, dirt, impurities, organics and volatile matter, rust and other scales from substrates. This cleaning and surface preparation action is affected by abrasion, shaving or dry machining of the substrate material as caused by dry magnetic abrasive particles, either in powder or granule form, which engage the substrate material in a magnetic field. The passage of input current through a motor generates a magnetic field, which creates a “coupling” between two surfaces, the driving (stator) surface and the driven (rotor) surface. The magnetic coupling between the surfaces is provided by stiffening of the particles, which allows the mechanical abrasion that is necessary for the cleaning action on the substrate.
    Type: Application
    Filed: November 20, 2002
    Publication date: November 20, 2003
    Inventors: Alfredo Riviere, Carlos Riviere, Navtej Singh Saluja
  • Publication number: 20030135977
    Abstract: A process and equipment is disclosed for the production and use of precursor material in the continuous production of large diameter bars for semi-solid forming. The invention discloses the production and use of precursor material for the semi solid formation of light non-ferrous metals, non-ferrous copper-based alloys and metal matrix composites (MMC) based on the above metals. The inventive process and equipment allows extrusion of material bars with a negative extrusion ratio for use in semi-solid forming.
    Type: Application
    Filed: February 19, 2002
    Publication date: July 24, 2003
    Inventors: Alfredo Riviere, Navtej Singh Saluja
  • Publication number: 20030130958
    Abstract: Secure electronic transaction system is provided between a plurality of computer systems and other electronic terminals wholly or partly over a public communication system such as the internet, a closed communication system such as a banking network or point-to-point communications such as dial-up connections and leased lines. Secure transmission of transaction information instructions and payment instructions is provided from a customer's computer system to the customer's bank's computer system. The bank's computer system processes and evaluates the instructions and transmits by way of secure transmissions the transaction instructions and payment instructions to the merchant's computer system.
    Type: Application
    Filed: October 30, 2002
    Publication date: July 10, 2003
    Inventors: Shankar Narayanan, Navtej Singh, Vishnuram Swaminathan
  • Patent number: 6500284
    Abstract: There is provided a continuous casting and rolling process for continuously producing a deformed fine grain solid metal composition suitable for semi-solid forming. The process is characterized by high throughput, continuity, and precise control of the process parameters, such as solidification rate, rolling temperature and speed and total deformation. The solidification rate is preferred to be in a range of 10 to 150° C./s, and the total deformation is controlled to be larger than a Mises effective strain of 2.3 to obtain a deformed fine grain structure with enough distortion energy. A method combining the continuous casting and rolling process of preparing semi-solid raw material with semi-solid forming of shaped articles is also disclosed.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: December 31, 2002
    Assignee: Suraltech, Inc.
    Inventors: Youdong Zhou, Jian Lu, Navtej Singh Saluja, Alfredo Riviere, V
  • Patent number: 6120625
    Abstract: There are provided a continuous frictional extrusion process for continuously producing a deformed fine grain solid metal composition suitable for semi-solid forming. The process is featured by a large range of produce dimension and by precise control of the process parameter, such as total deformation, extrusion temperature and speed. The total deformation is controlled to be larger than a Mises effective strain of 2.3 to obtain a deformed fine grain structure with enough distortion energy stored, having a grain size less than 30 .mu.m and a subgrain size less than 2 .mu.m. A method combining the continuous extrusion process of preparing semi-solid raw material with semi-solid forming of shaped articles is also disclosed.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: September 19, 2000
    Inventors: Youdong Zhou, Jian Lu, Navtej Singh Saluja, Alfredo Riviere V.
  • Patent number: 5820940
    Abstract: The method of preparing an adhesive layer on a substrate includes introducing a thermally reactive powder comprising aluminum and a second metal into a plasma torch, wherein the thermally reactive powder is substantially free of binder, additive and contaminant and does not contain a significant amount of intermetallic compound into a plasma torch. An exothermic reaction is initiated within the thermally reactive powders in the plasma torch and the exotherming powders impinge onto a substrate, such that the heat generated by the exothermic reaction is generated predominantly on the substrate.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: October 13, 1998
    Assignee: Technalum Research, Inc.
    Inventors: Igor Vasilievich Gorynin, Boris Vladimirovich Farmakovsky, Alexander Pavlovich Khinsky, Karina Vasilievna Kalogina, Alfredo Riviere V., Julian Szekely, Navtej Singh Saluja