Patents by Inventor Alfred H. Nissan

Alfred H. Nissan 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).

  • Method for washing a paper fiber on a belt washer using a sonic frequency disturbance
    Patent number: 4608122
    Abstract: The washing efficiency of removal of cooking and bleaching chemicals from cellulose paper pulp on horizontal belt washing filters is improved by disrupting the filter mat adjacent the belt intermediately of soft, displacement wash liquor applications to the filter mat topside. The objective may be achieved by directing a line of low volume, high pressure jets of filtrate or wash liquor against the belt underside. Alternatively, sonicly vibrated foils extended transversely of and adjacent to the belt are effective to disrupt the filler mat pursuant to the invention objective.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: August 26, 1986
    Assignee: Westvaco Corporation
    Inventors: Edward P. Klein, Alfred H. Nissan
  • Belt washing improvements
    Patent number: 4539827
    Abstract: The washing efficiency of removal of cooking and bleaching chemicals from cellulose paper pulp on horizontal belt washing filters is improved by disrupting the filter mat adjacent the belt intermediately of soft, displacement wash liquor applications to the filter mat topside. The objective may be achieved by directing a line of low volume, high pressure jets of filtrate or wash liquor against the belt underside. Alternatively, sonicly vibrated foils extended transversely of and adjacent to the belt are effective to disrupt the filler mat pursuant to the invention objective.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: September 10, 1985
    Assignee: Westvaco Corporation
    Inventors: Edward P. Klein, Alfred H. Nissan