Patents by Inventor Pritpal Virdee

Pritpal Virdee 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).

  • Spiked bag packaging system
    Patent number: 5303751
    Abstract: A sealed, flexible plastic sheet bag for storing liquids that is penetrable by a spiked connector through a spike channel fitting. The spike channel fitting is sealed between a pair of folds on one side of the bag so that the inside port of the channel is adjacent to the folded plastic sheet. The spike is inserted through the channel of the spike channel fitting and punctures the plastic sheet to tap the bag to remove the liquid. Leakage is prevented by both the seal between the plastic sheet and the spike and the seal between the bag and the spike channel fitting.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: April 19, 1994
    Assignee: Fresenius AG
    Inventors: Glenn L. Slater, Pritpal Virdee