Patents by Inventor Philip P. Su

Philip P. Su 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: 5186223
    Abstract: An improved filling system for containers of mixtures of liquid and solid material where the liquid/solid ratio is critical is disclosed. A prior art problem was that sticky solid material would adhere to the receptacle or bucket in which it was delivered to a filling chute or funnel and it would also stick to the funnel. This problem is solved by putting the sticky solid in the buckets and by using the liquid to flush the funnel and by using an air jet to remove any remaining particles from the buckets which are upturned over the funnel. Alternately, a part of the liquid may be placed in the delivery bucket and when it is tilted or turned upside down to fill the container the remaining part of the liquid is used to rinse the receptacle. The filling system is especially useful for soups containing noodles or other pasta products.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: February 16, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Glenn E. Rummage, Philip P. Su
  • Patent number: 5029728
    Abstract: Packaging apparatus and a method therefor, comprise a bag dispenser in which a stack of bags is supported on extensible wicket pegs and the leading bag is advanced from the stack to bag-receiving wicket pegs of bag-receiving retainer means while the extensible parts of the wicket pegs of the stack holder means are extended into engagement with the wicket pegs of the bag-receiving retainer means. In that configuration a suction pad can draw the nearest bag from the rest of the stack to a separated position from which it may be further advanced by mechanical means and/or an air jet to pass that bag from the extensible wicket pegs of the stack holder means on to the wicket pegs of the bag retainer means. The bag dispensing apparatus may comprise part of a packaging apparatus.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: July 9, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Philip P. Su
  • Patent number: 4768411
    Abstract: A bag and a method and apparatus for forming an easy open bag in a vertical form-fill-seal process wherein a bag is formed from a sheet of thermoplastic film and a heat seal betwee bags as they are filled serves as the top closure for the lower bag and a bottom closure for the upper bag, the easy open feature being provided by easy tear slots which are cut at acute angles in both the bottom seal of a bag and the top so that an opening corner of the bag may be torn in either the top or bottom of the bag.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: September 6, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Philip P. Su