Patents by Inventor Charan Preet Singh Johal

Charan Preet Singh Johal 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).

  • Patent number: 7887922
    Abstract: A plain bearing having a sliding layer of a bearing material thereon is described, the bearing material comprising a polymer-based matrix selected from the group comprising modified epoxy resin and polyamide/amide resin, the matrix having contained therein at least one addition selected from the group comprising: metal powder in the range from 15 to 30 vol %; a fluoropolymer in the range from 1 to 15 vol %; ceramic powder in the range from 0.5 to 20 vol %; and, silica in the range from 2 to 15 vol %.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: February 15, 2011
    Assignee: Mahle Engine Systems Ltd.
    Inventors: Carolyn A. Mayston, Charan Preet Singh Johal
  • Patent number: 7455458
    Abstract: A plain bearing and method for making the same are shown and described. The plain bearing includes a layer of a strong backing material to which a first bearing alloy is bonded. A second layer of bearing material overlays the first bearing layer and comprises essentially pure tin without any other metallic alloying constituents and an organic levelling agent in the matrix thereof.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: November 25, 2008
    Assignee: Mahle Engine Systems Ltd.
    Inventors: Charan Preet Singh Johal, John Carey
  • Patent number: 7174637
    Abstract: A plain bearing and method for making the plain bearing are described, the plain bearing having an overlay alloy layer at a sliding surface of the plain bearing, the plain bearing comprising a layer of a strong backing material, a layer of a first bearing alloy bonded to the strong backing material and a layer of a second bearing material comprising said overlay material bonded to said first bearing alloy layer wherein said second bearing material comprises tin having included in the matrix thereof an organic levelling agent.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: February 13, 2007
    Assignee: Dana Corporation
    Inventors: Charan Preet Singh Johal, John Carey
  • Patent number: 6485627
    Abstract: A method and apparatus for electroplating at least part of the surface area of an article with a metal coating is described, the method including the steps of: placing the article in a vessel, the vessel being provided with machinery to allow access of fluid to an interior volume; the article being contained in the interior volume and, machinery to allow egress of the fluid; providing the vessel with anode and cathode connections such as to enable the article to become cathodic with regard to an anode extending into the interior volume; providing machinery to cause at least two different fluids including at least one plating electrolyte to be introduced into the vessel in sequence, flow through the interior volume and to exit therefrom for a sufficient time to allow a required thickness of the metal coating to be deposited.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: November 26, 2002
    Assignee: Dana Corporation
    Inventors: Charan Preet Singh Johal, John Carey
  • Patent number: 6045929
    Abstract: A plain bearing having a metal backing, a bearing lining secured to the backing and an overlay plated to an interlayer, which is itself plated onto the bearing lining, is disclosed. The bearing lining is formed from an alloy based on aluminum or copper. The overlay is formed of an alloy of zinc with 0.5 to 25% by weight of a metal selected from nickel, cobalt and iron, and the material of the interlayer is selected from nickel and copper.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: April 4, 2000
    Assignee: T&N Technology Limited
    Inventors: David Raymond Eastham, Charan Preet Singh Johal
  • Patent number: 5925471
    Abstract: A plain bearing having a metal backing, a bearing lining secured to the backing and an overlay plated to an interlayer, which is itself plated onto the bearing lining, is disclosed. The bearing lining is formed from an alloy based on aluminum or copper. The overlay is formed of an alloy of zinc with 0.5 to 25% by weight of a metal selected from nickel, cobalt and iron, and the material of the interlayer is selected from nickel and copper.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: July 20, 1999
    Assignee: T&N Technology Limited
    Inventors: David Raymond Eastham, Charan Preet Singh Johal