Patents by Inventor Edward H. Hutchinson

Edward H. Hutchinson 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).

  • Printing machines
    Patent number: 6516720
    Abstract: A rotary printing machine having two doctor blades, a gravity fed ink dispensing mechanism, and a drum cleaning spray system is provided. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanisms.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 11, 2003
    Assignee: AWI Licensing Company
    Inventors: Wai Cheung, Edward H. Hutchinson
  • Printing machines
    Publication number: 20020088357
    Abstract: A rotary printing machine having a cylinder, two doctor blades acting on the cylinder and a gravity fed ink dispensing mechanism and a drum cleaning spray system provided on a reciprocating carriage. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanism.
    Type: Application
    Filed: December 20, 2001
    Publication date: July 11, 2002
    Applicant: Armstrong World Industries, Inc.
    Inventors: Wai Cheung, Edward H. Hutchinson
  • Printing machine having reciprocating carriage carrying both cleaning and ink delivery devices
    Patent number: 6401618
    Abstract: A rotary printing machine having a cylinder, two doctor blades acting on the cylinder, and a gravity fed ink dispensing mechanism and a drum cleaning spray system provided on a reciprocating carriage. Ink is applied in excess to one of the doctor blades and excess ink is removed by the other. One of the ink dispensing mechanisms can be removed and replaced while printing is taking place using ink from the other ink dispensing mechanism.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: June 11, 2002
    Assignee: AWI Licensing Company
    Inventors: Wai Cheung, Edward H. Hutchinson