Patents by Inventor Michael Petrushko

Michael Petrushko 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).

  • Patent number: 5579959
    Abstract: In a container for dispensing viscous food product having viscosity such as of ketchup, mustard, melted cheese or the like, is a housing for a pump, a dispenser, and valves. The housing has a pumping chamber and dispensing chamber, with first and second valves associated with the pumping and dispensing chambers, respectively. The pump chamber is sized to receive part of a pump. The dispensing chamber is sized to receive part of a dispenser, which can include a base. An angled flow passage connects the pump chamber to the dispensing chamber. The first and second valves can both include a ball. Structure is provided for checking the upward movement of the first and second valves during pumping and dispensing strokes and to hold the dispenser to the housing, which in a preferred embodiment comprises a U-shaped pin which passes into the dispensing chamber and engages the dispenser, and into the pump chamber. A notch in the side of the housing permits easy grasping of the U-shaped pin.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: December 3, 1996
    Assignee: Star Manufacturing International, Inc.
    Inventors: Paul A. Bennett, James W. Brown, Michael Petrushko