Patents by Inventor John W. Vargo

John W. Vargo 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).

  • Filter apparatus and method of filtering
    Patent number: 4321064
    Abstract: A filter comprising a flat sheet, a corrugated sheet adhered in faced relationship to said flat sheet, a first array of parallel spaced orifices formed in said flat sheet, and a second array of parallel spaced orifices formed in said corrugated sheet, orifices in said first array being disposed laterally in spaced relationship from orifices in said second array, orifices in said first array communicating with orifices in said second array through corrugations in said corrugated sheet.A process for separating suspended particles from a fluid using the foregoing filter is disclosed. Use of the foregoing filter in a spray booth is also disclosed.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: March 23, 1982
    Inventor: John W. Vargo
  • Display carton
    Patent number: 3989139
    Abstract: A display carton for an article of merchandise is formed from a cut and scored blank of paperboard, or the like, and is characterized by upper and lower paired cells protecting the article, the two cells at each end of the completed carton having cell walls in confronting relationship, so that resistance to crushing of the completed carton and good stacking qualities are provided.
    Type: Grant
    Filed: July 29, 1975
    Date of Patent: November 2, 1976
    Assignee: FDI, Inc.
    Inventor: John W. Vargo