Patents by Inventor Joseph Sewchok

Joseph Sewchok 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).

  • In-barrel wetting screw charger
    Patent number: 6349570
    Abstract: A wet batch material charging apparatus having a charger screw housing having a batch material inlet and a batch material outlet, a dry batch material supply device adapted to deliver a dry batch material through the batch material inlet, a rotatable charger screw shaft having at least one screw flight disposed within the charger screw housing and adapted to convey the batch material from the batch material inlet to the batch material outlet, and a liquid supply apparatus for introducing at least one liquid into the charger screw housing. The liquid supply apparatus independently controls the liquid flow rate and the liquid flow duration based upon the batch material charging speed and rotation of the rotatable charger screw shaft.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: February 26, 2002
    Assignee: Merkle Engineers, Inc.
    Inventors: Stephen Coates, Jake Ross, Anthony Sushel, Joseph Sewchok, Fred Lindeman