Patents by Inventor Daniel L. Dujmich

Daniel L. Dujmich 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).

  • Coffee brewing press with displaceable agitator
    Patent number: 10973363
    Abstract: A beverage brewing press has an open topped container for receiving a liquid and particulate matter to be brewed into a beverage, a hollow plunger shaft, a sealing filter piston disposed on the plunger shaft, the sealing filter piston having a peripheral seal slidably sealing to an interior of the container and for separating the interior of the container into a first compartment and a second compartment, the piston having a filter thereon for allowing brewed beverage to be filtered from the first compartment into the second compartment upon displacement of the piston, an agitator disposed below the piston, the agitator being fastened to an agitator shaft disposed concentrically rotatably and slidably in the hollow plunger shaft, a displaceable distance being provided between the agitator and the piston, the agitator shaft being slidable in the plunger shaft to take-up the displaceable distance between the agitator and the piston when the piston moves toward the agitator due to an axial force exerted on the p
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 13, 2021
    Inventor: Daniel L. Dujmich
  • COFFEE BREWING PRESS WITH DISPLACEABLE AGITATOR
    Publication number: 20190223650
    Abstract: A beverage brewing press has an open topped container for receiving a liquid and particulate matter to be brewed into a beverage, a hollow plunger shaft, a sealing filter piston disposed on the plunger shaft, the sealing filter piston having a peripheral seal slidably sealing to an interior of the container and for separating the interior of the container into a first compartment and a second compartment, the piston having a filter thereon for allowing brewed beverage to be filtered from the first compartment into the second compartment upon displacement of the piston, an agitator disposed below the piston, the agitator being fastened to an agitator shaft disposed concentrically rotatably and slidably in the hollow plunger shaft, a displaceable distance being provided between the agitator and the piston, the agitator shaft being slidable in the plunger shaft to take-up the displaceable distance between the agitator and the piston when the piston moves toward the agitator due to an axial force exerted on the p
    Type: Application
    Filed: April 3, 2019
    Publication date: July 25, 2019
    Inventor: Daniel L. DUJMICH
  • COFFEE BREWING PRESS WITH DISPLACEABLE AGITATOR
    Publication number: 20170325617
    Abstract: A beverage brewing press has an open topped container for receiving a liquid and particulate matter to be brewed into a beverage, a hollow plunger shaft, a sealing filter piston disposed on the plunger shaft, the sealing filter piston having a peripheral seal slidably sealing to an interior of the container and for separating the interior of the container into a first compartment and a second compartment, the piston having a filter thereon for allowing brewed beverage to be filtered from the first compartment into the second compartment upon displacement of the piston, an agitator disposed below the piston, the agitator being fastened to an agitator shaft disposed concentrically rotatably and slidably in the hollow plunger shaft, a displaceable distance being provided between the agitator and the piston, the agitator shaft being slidable in the plunger shaft to take-up the displaceable distance between the agitator and the piston when the piston moves toward the agitator due to an axial force exerted on the p
    Type: Application
    Filed: May 16, 2016
    Publication date: November 16, 2017
    Inventor: Daniel L. Dujmich