Patents by Inventor David K. Bischoff

David K. Bischoff 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).

  • Film drying apparatus with uniform flow air tubes
    Patent number: 5579072
    Abstract: An air tube for use in a drying apparatus includes a tapered main tube body comprising an open air inlet end and a closed end opposite the open air inlet end, an air discharge port including an air exhaust slot, and an air diffuser located between the main tube body and the air discharge port, wherein the air diffuser includes a plurality of air flow apertures that are located at a position offset from the air exhaust slot of the air discharge port. The air tube is readily incorporated into a film processing system that includes a plurality of processing tanks, a film drying apparatus including a plurality of the air tubes, and a mechanism for transporting a photosensitive film through the processing tanks and into the film drying apparatus.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: November 26, 1996
    Assignee: Eastman Kodak Company
    Inventors: Lee F. Frank, David K. Bischoff
  • Film drying apparatus with uniform flow air tubes
    Patent number: 5481327
    Abstract: An air tube for use in a drying apparatus includes a tapered main tube body comprising an open air inlet end and a closed end opposite the open air inlet end, an air discharge port including an air exhaust slot, and an air diffuser located between the main tube body and the air discharge port, wherein the air diffuser includes a plurality of air flow apertures that are located at a position offset from the air exhaust slot of the air discharge port. The air tube is readily incorporated into a film processing system that includes a plurality of processing tanks, a film drying apparatus including a plurality of the air tubes, and a mechanism for transporting a photosensitive film through the processing tanks and into the film drying apparatus.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: January 2, 1996
    Assignee: Eastman Kodak Company
    Inventors: Lee F. Frank, David K. Bischoff