Patents by Inventor William B. Lindsey

William B. Lindsey 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 of passive remediation of D.N.A.P.L.'s from groundwater remediation wells
    Patent number: 6041863
    Abstract: A passive absorptive device covered with a layer of DNAPL-philic hydrophobic material, is disposed within a groundwater remediation well to soak up DNAPL (ie., dense non-aqueous phase liquid) seepage at the wall of the groundwater remediation well so that, after retrieval of the passive absorptive device from the well, the DNAPL soaked in the DNAPL-philic hydrophobic layer can be safely disposed of.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: March 28, 2000
    Inventor: William B. Lindsey
  • Non-contacting hybrid jumping developer dirt emission baffle seal
    Patent number: 5983053
    Abstract: A noncontact seal for a donor roll in an electrophotographic printing machine. The seal is fixed in the developer housing and envelopes each end of the donor roll but does not contact the donor roll. The small space does not allow a positive airflow sufficient to cause toner particles to be emited from the developer housing so as to contaminate the other portions of the printing machine. The seal is made of a low friction material such as DELRIN.RTM. so that toner particles do not stick to the seal and cause a buildup that would be detrimental to the photoreceptive member.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: November 9, 1999
    Assignee: Xerox Corporation
    Inventors: Samuel P. Mordenga, Thomas J. Behe, Thomas C. Keyes, Dan F. Lockwood, William B. Lindsey, Michael J. Palencar
  • Viscose preparation using low concentration caustic
    Patent number: 4409384
    Abstract: A process for the production of an acceptably filterable viscose from cellulose whereby cellulose is treated with an aqueous solution containing 13 to 16 weight percent NaOH, peroxide aged, xanthated and dissolved in dilute aqueous NaOH.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: October 11, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William B. Lindsey