Patents by Inventor Rajindra Singh

Rajindra 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).

  • Patent number: 7007579
    Abstract: A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150° C., preferably about 160 to 300° C., and more preferably about 180 to 210° C., eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: March 7, 2006
    Assignee: Teck Cominco Metals Ltd.
    Inventors: John V. Marlow, Thomas Lester Oswald, Rajindra Singh, Albert M. Vincze
  • Patent number: 6886439
    Abstract: A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150° C., preferably about 160 to 300° C., and more preferably about 180 to 210° C., eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: May 3, 2005
    Assignee: Teck Cominco Metals Ltd.
    Inventors: John V. Marlow, Thomas Lester Oswald, Rajindra Singh, Albert M. Vincze
  • Publication number: 20040079465
    Abstract: A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150° C., preferably about 160 to 300° C., and more preferably about 180 to 210° C., eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.
    Type: Application
    Filed: October 17, 2003
    Publication date: April 29, 2004
    Inventors: John V. Marlow, Thomas Lester Oswald, Rajindra Singh, Albert M. Vincze
  • Publication number: 20020104412
    Abstract: A method and apparatus for continuously producing pasted positive and negative electrode plates from pasted lead or lead alloy expanded, punched or cast metal mesh strip for use in lead-acid batteries without the use of paper barriers. The heating of cutting devices such as roll-mounted die-cutters to a predetermined temperature range of at least about 150° C., preferably about 160 to 300° C., and more preferably about 180 to 210° C., eliminates sticking of the paste on the pasted metal mesh strip to the cutting devices and obviates the need for the paper barriers.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 8, 2002
    Inventors: John V. Marlow, Thomas Lester Oswald, Rajindra Singh, Albert M. Vincze
  • Patent number: 5896635
    Abstract: An apparatus for gripping, guiding and transporting opposite longitudinal side edges of slit, deformable strip for forming expanded mesh sheet. One chain of each of two pairs of opposed endless chains has a longitudinal recess adjacent a longitudinal planar side edge of the strip for receiving the planar edge of the strip therein and the opposed chain of each of said pairs has a plurality of equispaced sharp projections for penetrating the longitudinal planar side edge of the strip whereby the said edge is effectively gripped between the opposed chains during expansion.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 27, 1999
    Assignee: Cominco Ltd.
    Inventors: John V. Marlow, Rajindra Singh