Patents by Inventor Colin A. Tester

Colin A. Tester 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).

  • Method and apparatus for applying a band of coating material around a recipient surface of an article
    Patent number: 4818571
    Abstract: Articles such as plastic containers for packaging are given a precisely controlled band of barrier coating material by a moving donor belt or a rotating wheel, the material having been first applied to the belt or wheel, e.g., by a jet such that excess material is removed before application to the articles. The remainder of the article can be coated if desired by another method.
    Type: Grant
    Filed: July 15, 1987
    Date of Patent: April 4, 1989
    Assignee: Metal Box Public Limited Company
    Inventors: Terence J. Pilley, deceased, Fred R. Pilling, Colin A. Tester
  • Waste disposal system
    Patent number: 4185973
    Abstract: In a waste disposal system (e.g. in a hospital) in which at least one shredding machine comminutes waste which is then drawn by air suction through a closed ducting system for destruction, each shredder has a discharge valve associated with its waste outlet, this valve being normally open but partially or wholly closed when the shredder is opened to receive waste; the shredder also has a vent opening in its waste inlet door to relieve pressure, and internal germicide sprays.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: January 29, 1980
    Assignee: Metal Box Limited
    Inventor: Colin A. Tester