Patents by Inventor Alfred A. Ryan

Alfred A. Ryan 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).

  • Packaging machine
    Patent number: 5622032
    Abstract: A rotary packaging machine including a pair of cooperating stripper bars (17) which engage the bag material (15) prior to the sealing jaws (16) engaging the bag material (15). The stripper bars (17) have attached to them or formed integral therewith, bag shields (30). The bag shields (30) are arcuate so as to generally extend along an arcuate path having a fixed axis extending from the pivot axis (32) of the supporting lever (26) for the stripper bar (17).
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: April 22, 1997
    Inventor: Alfred A. Ryan