Patents by Inventor Patrick Wozna

Patrick Wozna 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).

  • Differential pressure metering device
    Patent number: 9446886
    Abstract: A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: September 20, 2016
    Assignee: Flexidose
    Inventor: Patrick Wozna
  • DIFFERENTIAL PRESSURE METERING DEVICE
    Publication number: 20160138954
    Abstract: A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
    Type: Application
    Filed: January 19, 2016
    Publication date: May 19, 2016
    Inventor: Patrick Wozna
  • Differential pressure metering device
    Patent number: 8997788
    Abstract: A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: April 7, 2015
    Assignee: Flexidose SARL
    Inventor: Patrick Wozna
  • DIFFERENTIAL PRESSURE METERING DEVICE
    Publication number: 20140183230
    Abstract: A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
    Type: Application
    Filed: February 25, 2014
    Publication date: July 3, 2014
    Inventor: Patrick Wozna
  • DIFFERENTIAL PRESSURE METERING DEVICE
    Publication number: 20110277857
    Abstract: A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
    Type: Application
    Filed: November 4, 2009
    Publication date: November 17, 2011
    Inventor: Patrick Wozna