Patents by Inventor Mark David Dulik

Mark David Dulik 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).

  • System for transporting solid materials
    Patent number: 5919377
    Abstract: A railroad tank car can be filled with a slurry of a solid and a solvent therefor. The tank car is fitted with a feed distribution header that is provided with a plurality of predetermined spaced openings. The header is mounted in the car so that after the solids have settled, the solids are located below the distribution header and the supernatant liquid is above the distribution header. The supernatant liquid can then be withdrawn from the tank car through the distribution header and flows back to a storage tank from where it came. All of this can be accomplished with a single pump. Removing or unloading of solids from the car is effected by rendering the solids flowable with a liquor and pumping the solids from the car or dissolving them.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: July 6, 1999
    Assignee: General Chemical Corporation
    Inventors: Andrew Chisholm, Samuel Louis Bean, Mark David Dulik, Peter Anthony Monopoli